polar signal

См. также в других словарях:

• Polar modulation — is analogous to quadrature modulation in the same way that polar coordinates are analogous to Cartesian coordinates. Quadrature modulation makes use of Cartesian coordinates, x and y . When considering quadrature modulation, the x axis is called… …   Wikipedia

• Polar Bear Expedition — Polar Bear Monument in White Chapel Cemetery, Troy, Michigan, sculptor Leon Hermant …   Wikipedia

• Polar cyclone — Polar cyclones (also known as polar vortices , Arctic cyclones , and sub polar cyclones ) are vast areas of low pressure which strengthen in the winter and weaken in the summer.Halldór Björnsson. [http://andvari.vedur.is/… …   Wikipedia

• Signal edge — Signal edges shown in rectangular pulse amplitude modulation with polar non return to zero, inverted coding waveform In electronics, a signal edge is a transition in a digital signal from either low to high (0 to 1) or high to low (1 to 0). It is …   Wikipedia

• Polar mesosphere summer echoes — are strong signal power enhancements of scattering cross section at VHF radar frequencies in the range 50 MHz to 250 MHz, at times even to over 1 GHz, that occur between 80 km and 95 km altitude in summer at high latitudes. The peak PMSE height… …   Wikipedia

• Polar Cap Absorption — Beziehung von Ionosphäre und Erdatmosphäre Elektronendichte und Ionenzusammensetzung in den oberen Ionosphärenschichten …   Deutsch Wikipedia

• Polar Bear Expedition — Die Polar Bear Expedition (auch als Northern Russian Expedition, American North Russia Expeditionary Force – ANREF oder American Expeditionary Force North Russia – AEFNR bekannt; in deutscher Übersetzung: Expeditionskorps Eisbär bzw.… …   Deutsch Wikipedia

• signal — Synonyms and related words: ALGOL, COBOL, CRT spot, DM display, Doppler signal, EDP, FORTRAN, IF signal, IM display, RF echoes, Roman candle, Teletype, Wirephoto, aid to navigation, alarm, alert, alphabetic data, alphanumeric code, amber light,… …   Moby Thesaurus

• polar transmission —    A method of transmitting teletypewriter signals, whereby the marking signal is represented by direct current flowing in one direction and the spacing signal is represented by an equal current flowing in the opposite direction. In tone… …   IT glossary of terms, acronyms and abbreviations

• Mars Polar Lander — Artist depiction of Mars Polar Lander on Mars. Operator NASA / JPL Major contractors Martin Marietta …   Wikipedia

• Analytic signal — Not to be confused with Analytic function. In mathematics and signal processing, the analytic representation of a real valued function or signal facilitates many mathematical manipulations of the signal. The basic idea is that the negative… …   Wikipedia