low-noise receiver

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• low-noise receiver — mažatriukšmis imtuvas statusas T sritis radioelektronika atitikmenys: angl. low noise receiver vok. rauscharmer Empfänger, m rus. малошумящий приёмник, m pranc. récepteur à faible bruit, m …   Radioelektronikos terminų žodynas

• Low IF receiver — In a low IF receiver, the RF signal is mixed down to a non zero low or moderate intermediate frequency, typically a few megahertz. Low IF receiver topologies have many of the desirable properties of zero IF architectures, but avoid the DC offset… …   Wikipedia

• Low-noise block converter — A low noise block converter (LNB, for low noise block, or sometimes LNC, for low noise converter) is the (receiving, or downlink) antenna of what is commonly called the parabolic (actually paraboloid) satellite dish commonly used for satellite TV …   Wikipedia

• Low Noise Block Converter — Als rauscharmer Signalumsetzer (engl. low noise block converter [ləʊ nɔɪz blɒk kənˈvɜːtə], kurz LNB) wird die erste, im Brennpunkt einer Parabolantenne befindliche elektronische Baugruppe einer Satellitenempfangsanlage bezeichnet. Sie setzt die… …   Deutsch Wikipedia

• Low-noise amplifier — The low noise amplifier (LNA) is a special type of electronic amplifier or amplifier used in communication systems to amplify very weak signals captured by an antenna. It is often located very close to the antenna, so that losses in the feedline… …   Wikipedia

• Noise figure — (NF) is a measure of degradation of the signal to noise ratio (SNR), caused by components in a radio frequency (RF) signal chain. The noise figure is defined as the ratio of the output noise power of a device to the portion thereof attributable… …   Wikipedia

• Noise — This article is about noise as an unwanted phenomenon. For other uses, see Noise (disambiguation). NASA researchers at Glenn Research Center conducting tests on aircraft engine noise in 1967 In common use, the word noise means any unwanted …   Wikipedia

• Noise (electronics) — Electronic noise [1] is a random fluctuation in an electrical signal, a characteristic of all electronic circuits. Noise generated by electronic devices varies greatly, as it can be produced by several different effects. Thermal noise is… …   Wikipedia

• Noise reduction — For sound proofing, see soundproofing. For scientific aspects of noise reduction of machinery and products, see noise control. Noise reduction is the process of removing noise from a signal. All recording devices, both analogue or digital, have… …   Wikipedia

• Noise shaping — is a technique typically used in digital audio, image, and video processing, usually in combination with dithering, as part of the process of quantization or bit depth reduction of a digital signal. Its purpose is to increase the apparent signal… …   Wikipedia

• Noise (audio) — Noise in audio, recording, and broadcast systems refers to the residual low level sound (usually hiss and hum) that is heard in quiet periods of a programme. In audio engineering, it can refer either to the acoustic noise from loudspeakers, or to …   Wikipedia