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1 Nyquist frequency
- найквистовская [максимальная] частота сигнала
- минимально допустимая частота дискретизации
минимально допустимая частота дискретизации
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[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва]Тематики
- электротехника, основные понятия
EN
найквистовская [максимальная] частота сигнала
Верхний предел ограничечного по спектру аналогового сигнала. Минимально допустимая частота дискретизации равна удвоенной верхней частоте сигнала, т.е. для стандартного телефонного канала с полосою частот 4 кГц частота дискретизации равна 8 кГц.
[Л.М. Невдяев. Телекоммуникационные технологии. Англо-русский толковый словарь-справочник. Под редакцией Ю.М. Горностаева. Москва, 2002]Тематики
- электросвязь, основные понятия
EN
Англо-русский словарь нормативно-технической терминологии > Nyquist frequency
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2 Nyquist frequency
частота Найквиста, частота Котельниковачастота дискретизации аналогового сигнала, обеспечивающая его корректное преобразование в цифровую форму. В теореме о выборках Гарри Найквиста доказывалось, что частота дискретизации (sampling rate) должна быть по крайней мере вдвое выше самой высокой частоты обрабатываемого сигнала, чтобы можно было восстановить исходный сигнал - так, для дискретизации голосового сигнала, имеющего полосу 4 кГц, необходима частота 8 кГц, в противном случае неизбежны искажения при воспроизведении этого сигнала в цифровом виде. Теорема Найквиста стала одной из фундаментальных основ теории информации (см. тж. aliasing). В России, а сейчас и во всём мире, эта теорема известна как теорема Котельникова-Найквиста (теорема отсчётов или дискретизации). В 1930-х годах в рамках закрытых работ по теории связи она была независимо доказана Гарри Найквистом, М.А. Котельниковым и Клодом Шенноном (Первая теорема Шеннона). Обратите внимание, что термин Nyquist rate - не синоним!см. тж. frequencyАнгло-русский толковый словарь терминов и сокращений по ВТ, Интернету и программированию. > Nyquist frequency
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3 nyquist frequency
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4 Nyquist frequency
максимальная частота сигнала (половина частоты дискретизации)Большой англо-русский и русско-английский словарь > Nyquist frequency
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5 Nyquist frequency
Англо-русский словарь технических терминов > Nyquist frequency
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6 Nyquist frequency
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Англо-русский словарь нефтегазовой промышленности > Nyquist frequency
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7 Nyquist frequency
2) Телекоммуникации: предельная частота3) Электроника: минимально допустимая частота опроса, частота опроса4) Космонавтика: частота найквиста5) Электротехника: минимально допустимая частота дискретизации -
8 Nyquist frequency
частота Найквиста, минимально допустимая частота дискретизации -
9 Nyquist frequency
частота Найквиста, минимально допустимая частота дискретизацииThe New English-Russian Dictionary of Radio-electronics > Nyquist frequency
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10 Nyquist frequency
предельная частота, (минимально допустимая) частота опросаEnglish-Russian dictionary of telecommunications and their abbreviations > Nyquist frequency
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11 nyquist frequency
минимально допустимая частота опроса; частота опросаEnglish-Russian dictionary of electronics > nyquist frequency
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12 super-Nyquist frequency
Большой англо-русский и русско-английский словарь > super-Nyquist frequency
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13 super-Nyquist frequency
Англо-русский словарь технических терминов > super-Nyquist frequency
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14 sub-Nyquist frequency
Макаров: частота субдискретизации -
15 super-Nyquist frequency
Техника: частота супердискретизацииУниверсальный англо-русский словарь > super-Nyquist frequency
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16 sub-Nyquist frequency
не превышающая частоту Найквиста частота дискретизации, не превышающая минимально допустимое значение частота дискретизации, проф. частота субдискретизацииEnglish-Russian electronics dictionary > sub-Nyquist frequency
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17 sub-Nyquist frequency
не превышающая частоту Найквиста частота дискретизации, не превышающая минимально допустимое значение частота дискретизации, проф. частота субдискретизацииThe New English-Russian Dictionary of Radio-electronics > sub-Nyquist frequency
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18 frequency
1) частота2) повторяемость; частота повторения; периодичность•-
absolute cumulative frequency
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absolute frequency
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acoustic frequency
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actual frequency
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adjacent frequency
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adjustment frequency
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air distress frequency
- air-ground radio frequency -
alias frequency
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allocated frequency
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alternate frequency
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angular frequency
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antiresonance frequency
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assigned frequency
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audio frequency
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authorized frequency
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base cutoff frequency
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base frequency
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basic frequency
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basic repetition frequency
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beat frequency
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bending frequency
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bias frequency
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boundary frequency
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break frequency
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broadcast frequency
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burst frequency
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calibrating frequency
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call-back frequency
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calling frequency
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carrier frequency
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catenary frequency
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center frequency
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channel frequency
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characteristic frequency
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chopping frequency
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chroma subcarrier frequency
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circular frequency
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clock frequency
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collision frequency
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color subcarrier frequency
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color-frame frequency
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color-fusion frequency
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color-picture frequency
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combination frequencys
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commercial frequency
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complex frequency
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component frequency
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corner frequency
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count frequency
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critical frequency
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crossover frequency
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crystal frequency
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culprit frequency
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cutoff frequency
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cyclic frequency
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cyclotron frequency
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damped frequency
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damped natural frequency
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damped vibration frequency
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day frequency
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dedicated frequency
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departure frequency
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difference frequency
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discharge oscillatory frequency
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dispersion frequency
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distress frequency
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dominant frequency
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Doppler-beat frequency
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Doppler frequency
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downlink frequency
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driving frequency
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en-route frequency
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erase frequency
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excitation frequency
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extinction frequency
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extremely high frequency
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extremely low frequency
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ferromagnetic-resonance frequency
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field-repetition frequency
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field frequency
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fixed frequency
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flicker frequency
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flood frequency
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flow frequency
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folding frequency
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forcing frequency
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frame-repetition frequency
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frame frequency
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free-running frequency
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free frequency
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frequency of discharges
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frequency of irrigation
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frequency of maximum admittance
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frequency of maximum impedance
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frequency of maximum transmission
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frequency of operation
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frequency of recalibration
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fundamental frequency
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fusion frequency
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gear-meshing frequency
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gliding frequency
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graded-base cutoff frequency
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harmonic frequency
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high frequency
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highest probable frequency
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horizontal frequency
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horizontal-repetition frequency
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horizontal-sweep frequency
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idler frequency
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image frequency
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impulse frequency
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infralow frequency
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infrasonic frequency
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input frequency
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instantaneous frequency
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intended frequency
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intercarrier frequency
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intermediate frequency
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ionization frequency
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jammed frequency
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jitter frequency
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jump frequency
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knee frequency
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laser radiation frequency
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limiting frequency
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line frequency
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line-locked frequency
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line-scanning frequency
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load resonance frequency
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load resultant frequency
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locking frequency
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loop unity gain frequency
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low frequency
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lower cutoff frequency
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lowest observed frequency
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lowest usable frequency
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lubrication frequency
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main resonance frequency
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mains frequency
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master clock frequency
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master frequency
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maximum observed frequency
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maximum usable frequency
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microwave frequency
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midband frequency
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mode frequency
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modulation frequency
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multiple frequency
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mutation frequency
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natural frequency
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notch frequency
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note frequency
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Nyquist frequency
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off frequency
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offset frequency
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operating frequency
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oscillating frequency
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output frequency
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parallel resonance frequency
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penetration frequency
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picture frequency
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picture-carrier frequency
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pilot frequency
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plasma frequency
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power-line frequency
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power frequency
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preset frequency
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projection frequency
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pull-in frequency
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pull-out frequency
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pulse-repetition frequency
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pumping frequency
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pump frequency
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pushing frequency
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quasi-resonance frequency
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quenched frequency
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quench frequency
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quiescent frequency
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radian frequency
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radio frequency
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ramp frequency
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rated frequency
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recombination frequency
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reference frequency
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repetition frequency
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resonance frequency
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resonator frequency
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rest frequency
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ring frequency
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ringing frequency
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ripple frequency
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rotational frequency
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rotation frequency
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sampling frequency
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scanning frequency
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scan frequency
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scanning-line frequency
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scan-line frequency
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secondary frequency
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self-neutralization frequency
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series resonance frequency
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side frequency
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signal frequency
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sliding frequency
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slip frequency
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slot ripple frequency
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sonic frequency
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sound carrier frequency
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sound frequency
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source frequency
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space frequency
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specified frequency
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spot frequency
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standard frequency
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steady-state frequency
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stream frequency
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subcarrier frequency
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subharmonic frequency
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subNyquist frequency
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subsonic frequency
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subsynchronous frequency
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subtelephone frequency
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superhigh frequency
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super-Nyquist frequency
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super-telephone frequency
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supply frequency
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sweep frequency
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switching frequency
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synchronizing frequency
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synchronous frequency
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system frequency
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test frequency
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threshold frequency
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timing frequency
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torsional frequency
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transition frequency
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troublesome resonant frequency
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turnover frequency
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ultrahigh frequency
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ultralow frequency
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ultrasonic frequency
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unassigned frequency
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undamped frequency
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unused frequency
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unwanted frequency
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usage frequency
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vertical frequency
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vertical-repetition frequency
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vertical-sweep frequency
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very high frequency
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very low frequency
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vibrational frequency
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vibration frequency
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video frequency
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vision frequency
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visual frequency
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visual-fusion frequency
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voice frequency
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waveguide cutoff frequency
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window frequency
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wobble frequency -
19 frequency
= freq1) частота (1. величина, обратная периоду; величина, пропорциональная обратному периоду (напр. круговая частота) 2. частота появления случайного события, отношение встречаемости к числу испытаний) || частотный2) встречаемость ( случайного события); периодичность•- acoustic frequency
- acoustical frequency
- actual frequency
- air-ground radio frequency
- air-to-ground radio frequency
- alias frequency
- alpha cutoff frequency
- alternate frequency
- angular frequency
- antenna resonant frequency
- antiferromagnetic resonance frequency
- antiresonant frequency
- anti-Stokes frequency
- assigned frequency
- atomic frequency
- audio frequency
- aural center frequency
- authorized frequency
- avalanche frequency
- base frequency
- base-transport cutoff frequency
- basic frequency
- bass frequency
- beat frequency
- beta cutoff frequency
- bias frequency
- Bragg frequency
- break frequency
- bubble-propagation frequency
- bus frequency
- carrier frequency
- center frequency
- channel frequency
- characteristic frequency
- chopping frequency
- circular frequency
- clock frequency
- co-channel sound frequency
- collision frequency
- combination frequency
- commercial frequency
- complex frequency
- constant frequency
- core frequency
- corner frequency
- critical frequency
- critical fusion frequency
- crossover frequency
- cumulative relative frequency
- cutoff frequency
- cyclotron frequency
- data frequency
- data communications frequency
- 3-dB frequency
- dedicated frequency
- difference frequency
- diffusion frequency
- distress frequency
- Doppler frequency
- Doppler-beat frequency
- Doppler-shifted frequency
- down-link frequency
- drift frequency
- driving frequency
- dynamic-scattering cutoff frequency
- echo frequency
- electron Langmuir frequency
- electron paramagnetic resonance frequency
- electron plasma frequency
- expected frequency
- extinction frequency
- extremely high frequency
- extremely low frequency
- facsimile picture frequency
- ferrimagnetic-resonance frequency
- ferromagnetic-resonance frequency
- field frequency
- fixed frequency
- flicker-fusion frequency
- flutter frequency
- folding frequency
- forward-bias cutoff frequency
- frame frequency
- free-running frequency
- fundamental frequency
- fundamental scanning frequency
- fusion frequency
- gap frequency
- gliding frequency
- ground-air frequency
- ground-to-air frequency
- group frequency
- Gunn frequency
- half-power frequency
- harmonic frequency
- helicon frequency
- heterodyne frequency
- high frequency
- highest probable frequency
- horizontal-line frequency
- horizontal-scanning frequency
- hyperfine frequency
- hyperfine transition frequency
- hyperhigh frequency
- idler frequency
- image frequency
- imaginery frequency
- IMPATT-frequency
- impingement frequency
- impulse frequency - instantaneous frequency
- intercarrier frequency
- intermediate frequency
- intermodulation frequency
- intermodulation component frequency
- inversion-layer cutoff frequency
- ion cyclotron frequency
- ionization frequency
- ion plasma frequency
- jittered pulse-recurrence frequency
- Josephson frequency
- keying frequency
- knee frequency
- Langmuir plasma frequency
- Larmor frequency
- laser-frequency
- laser-emission-frequency
- lattice vibration frequency
- line frequency
- line screen frequency
- lobe frequency
- local-oscillator frequency
- locking frequency
- low frequency
- lower side frequency - lowest useful high frequency
- magnetohydrodynamic frequency
- magnetoplasma frequency
- mains frequency
- maser frequency
- maser-emission frequency
- master frequency
- maximum frequency of oscillation
- maximum keying frequency
- maximum modulating frequency - microwave frequency
- midband frequency
- mode frequency
- modulation frequency
- multiple frequency
- natural frequency
- nominal frequency
- notch frequency
- note frequency
- Nyquist frequency
- observed frequency
- operating frequency
- optical frequency - photoelectric threshold frequency
- picture frequency
- piezoelectric crystal antiresonant frequency
- piezoelectric crystal resonant frequency
- pilot frequency
- plasma frequency
- power frequency
- power-line frequency
- precession frequency
- primary frequency
- pulse-recurrence frequency - pumping frequency
- quasi-optical frequency
- quench frequency
- quenching frequency
- quiescent frequency
- radian frequency
- radio frequency
- rated frequency
- reactive cutoff frequency
- real frequency
- reference frequency
- relative frequency
- relative frequency
- repetition frequency
- resistive cutoff frequency
- resonance frequency
- resonant frequency
- rest frequency
- resting frequency
- ringing frequency
- ripple frequency
- scan frequency
- scanning-line frequency
- screen frequency
- secondary frequency
- second-channel frequency
- self-neutralization frequency
- self-resonant frequency
- SH frequency
- side frequency
- sonic frequency
- sound frequency
- sound carrier frequency
- sound center frequency
- space frequency
- spark frequency
- spatial frequency
- speech frequency
- spike frequency
- spin frequency
- spot frequency
- standard frequency
- Stokes frequency
- subaudio frequency
- subcarrier frequency
- subharmonic frequency
- sub-Nyquist frequency
- subsonic frequency
- sub-telephone frequency
- sum frequency
- summation frequency
- superaudio frequency - super-telephone frequency
- supply frequency
- suppression frequency
- sweep frequency
- synchronizing frequency
- threshold frequency - toggle frequency
- tone frequency
- top baseband frequency
- transition frequency
- transit-time frequency
- transit-time cutoff frequency
- transmission frequency
- TRAPATT frequency
- trapped plasma frequency
- treble frequency
- turnover frequency
- ultra-audible frequency - undamped frequency
- uniform precession frequency
- unity-gain frequency
- up-link frequency
- upper side frequency
- variable frequency
- vertical frequency - video frequency
- vision frequency
- vision carrier frequency
- visual carrier frequency
- voice frequency
- voltage gain cutoff frequency
- waveguide cutoff frequency
- window frequency
- wow frequency -
20 frequency
1) частота (1. величина, обратная периоду; величина, пропорциональная обратному периоду (напр. круговая частота) 2. частота появления случайного события, отношение встречаемости к числу испытаний) || частотный2) встречаемость ( случайного события); периодичность•- absolute cutoff frequency
- acoustic frequency
- acoustical frequency
- actual frequency
- air-ground radio frequency
- air-to-ground radio frequency
- alias frequency
- alpha cutoff frequency
- alternate frequency
- angular frequency
- antenna resonant frequency
- antiferromagnetic resonance frequency
- antiresonant frequency
- anti-Stokes frequency
- assigned frequency
- atomic frequency
- audio frequency
- aural center frequency
- authorized frequency
- avalanche frequency
- base frequency
- base-transport cutoff frequency
- basic frequency
- bass frequency
- beat frequency
- beta cutoff frequency
- bias frequency
- Bragg frequency
- break frequency
- bubble-propagation frequency
- bus frequency
- carrier frequency
- center frequency
- channel frequency
- characteristic frequency
- chopping frequency
- circular frequency
- clock frequency
- co-channel sound frequency
- collision frequency
- combination frequency
- commercial frequency
- complex frequency
- constant frequency
- core frequency
- corner frequency
- critical frequency
- critical fusion frequency
- crossover frequency
- cumulative relative frequency
- cutoff frequency
- cyclotron frequency
- data communications frequency
- data frequency
- dedicated frequency
- difference frequency
- diffusion frequency
- distress frequency
- Doppler frequency
- Doppler-beat frequency
- Doppler-shifted frequency
- down-link frequency
- drift frequency
- driving frequency
- dynamic-scattering cutoff frequency
- echo frequency
- electron Langmuir frequency
- electron paramagnetic resonance frequency
- electron plasma frequency
- expected frequency
- extinction frequency
- extremely high frequency
- extremely low frequency
- facsimile picture frequency
- ferrimagnetic-resonance frequency
- ferromagnetic-resonance frequency
- field frequency
- fixed frequency
- flicker-fusion frequency
- flutter frequency
- folding frequency
- forward-bias cutoff frequency
- frame frequency
- free-running frequency
- fundamental frequency
- fundamental scanning frequency
- fusion frequency
- gap frequency
- gliding frequency
- ground-air frequency
- ground-to-air frequency
- group frequency
- Gunn frequency
- half-power frequency
- harmonic frequency
- helicon frequency
- heterodyne frequency
- high frequency
- highest probable frequency
- horizontal-line frequency
- horizontal-scanning frequency
- hyperfine frequency
- hyperfine transition frequency
- hyperhigh frequency
- idler frequency
- image frequency
- imaginery frequency
- IMPATT-frequency
- impingement frequency
- impulse frequency
- infralow frequency
- infrasonic frequency
- instantaneous frequency
- intercarrier frequency
- intermediate frequency
- intermodulation component frequency
- intermodulation frequency
- inversion-layer cutoff frequency
- ion cyclotron frequency
- ion plasma frequency
- ionization frequency
- jittered pulse-recurrence frequency
- Josephson frequency
- keying frequency
- knee frequency
- Langmuir plasma frequency
- Larmor frequency
- laser-emission-frequency
- laser-frequency
- lattice vibration frequency
- line frequency
- line screen frequency
- lobe frequency
- local-oscillator frequency
- locking frequency
- low frequency
- lower side frequency
- lowest observed frequency
- lowest useful frequency
- lowest useful high frequency
- magnetohydrodynamic frequency
- magnetoplasma frequency
- mains frequency
- maser frequency
- maser-emission frequency
- master frequency
- maximum frequency of oscillation
- maximum keying frequency
- maximum modulating frequency
- maximum observed frequency
- maximum usable frequency
- medium frequency
- microwave frequency
- midband frequency
- mode frequency
- modulation frequency
- multiple frequency
- natural frequency
- nominal frequency
- notch frequency
- note frequency
- Nyquist frequency
- observed frequency
- operating frequency
- optical frequency
- optimum working frequency
- penetration frequency
- photoelectric threshold frequency
- picture frequency
- piezoelectric crystal antiresonant frequency
- piezoelectric crystal resonant frequency
- pilot frequency
- plasma frequency
- power frequency
- power-line frequency
- precession frequency
- primary frequency
- pulse-recurrence frequency
- pulse-repetition frequency
- pump frequency
- pumping frequency
- quasi-optical frequency
- quench frequency
- quenching frequency
- quiescent frequency
- radian frequency
- radio frequency
- rated frequency
- reactive cutoff frequency
- real frequency
- reference frequency
- relative frequency
- repetition frequency
- resistive cutoff frequency
- resonance frequency
- resonant frequency
- rest frequency
- resting frequency
- ringing frequency
- ripple frequency
- scan frequency
- scanning-line frequency
- screen frequency
- secondary frequency
- second-channel frequency
- self-neutralization frequency
- self-resonant frequency
- SH frequency
- side frequency
- sonic frequency
- sound carrier frequency
- sound center frequency
- sound frequency
- space frequency
- spark frequency
- spatial frequency
- speech frequency
- spike frequency
- spin frequency
- spot frequency
- standard frequency
- Stokes frequency
- subaudio frequency
- subcarrier frequency
- subharmonic frequency
- sub-Nyquist frequency
- subsonic frequency
- sub-telephone frequency
- sum frequency
- summation frequency
- superaudio frequency
- superhigh frequency
- supersonic frequency
- super-telephone frequency
- supply frequency
- suppression frequency
- sweep frequency
- synchronizing frequency
- threshold frequency
- timed radio frequency
- timing frequency
- toggle frequency
- tone frequency
- top baseband frequency
- transition frequency
- transit-time cutoff frequency
- transit-time frequency
- transmission frequency
- TRAPATT frequency
- trapped plasma frequency
- treble frequency
- turnover frequency
- ultra-audible frequency
- ultrahigh frequency
- ultrasonic frequency
- unassigned frequency
- undamped frequency
- uniform precession frequency
- unity-gain frequency
- up-link frequency
- upper side frequency
- variable frequency
- vertical frequency
- very high frequency
- very low frequency
- video frequency
- vision carrier frequency
- vision frequency
- visual carrier frequency
- voice frequency
- voltage gain cutoff frequency
- waveguide cutoff frequency
- window frequency
- wow frequencyThe New English-Russian Dictionary of Radio-electronics > frequency
См. также в других словарях:
Nyquist frequency — Not to be confused with Nyquist rate. Frequencies above ƒs/2 (the Nyquist frequency) have an alias below ƒs/2, whose value is given by this graph. ƒs/2 is also called folding frequency, because of the symmetry between 0 and ƒs. The Nyquist… … Wikipedia
Nyquist frequency — noun (telecommunication) twice the maximum frequency occurring in the transmitted signal • Topics: ↑telecommunication, ↑telecom • Hypernyms: ↑sampling frequency … Useful english dictionary
Nyquist — is a surname of Swedish and Norwegian origin which may refer to: People Arild Nyquist (1937–2004), Norwegian novelist, lyricist, writer and musician Harry Nyquist (1889–1976), Swedish American engineer Kari Nyquist (born 1918), Norwegian ceramist … Wikipedia
Nyquist–Shannon sampling theorem — Fig.1: Hypothetical spectrum of a bandlimited signal as a function of frequency The Nyquist–Shannon sampling theorem, after Harry Nyquist and Claude Shannon, is a fundamental result in the field of information theory, in particular… … Wikipedia
Nyquist rate — Not to be confused with Nyquist frequency. Spectrum of a bandlimited signal as a function of frequency In signal processing, the Nyquist rate, named after Harry Nyquist, is two times the bandwidth of a bandlimited signal or a bandlimited channel … Wikipedia
Frequency response — is the measure of any system s spectrum response at the output to a signal of varying frequency (but constant amplitude) at its input. In the audible range it is usually referred to in connection with electronic amplifiers, microphones and… … Wikipedia
Nyquist ISI criterion — Raised cosine response meets the Nyquist ISI criterion. Consecutive raised cosine impulses demonstrate the zero ISI property between transmitted symbols at the sampling instants. At t=0 the middle pulse is at its maximum and the sum of other… … Wikipedia
Nyquist filter — A Nyquist filter is an electronic filter used in TV receivers to equalize the video characteristics. The filter is named after the Swedish–US engineer Harry Nyquist (1889–1976). Contents 1 VSB 2 Example of a VSB 3 Demodulation problems … Wikipedia
Nyquist stability criterion — The Nyquist plot for . When designing a feedback control system, it is generally necessary to determine whether the closed loop system will be stable. An example of a destabilizing feedback control system would be a car steering system that… … Wikipedia
Nyquist, Harry — ▪ American physicist born Feb. 7, 1889, Nilsby, Sweden died April 4, 1976, Harlingen, Texas, U.S. American physicist and electrical and communications engineer, a prolific inventor who made fundamental theoretical and practical… … Universalium
Nyquist plot — A Nyquist plot. A Nyquist plot is a parametric plot of a transfer function used in automatic control and signal processing. The most common use of Nyquist plots is for assessing the stability of a system with feedback. In Cartesian coordinates,… … Wikipedia
