| 单词 | noise factor |
| 释义 | > as lemmasnoise factor noise factor n. Electronics a quantity representing the additional noise introduced by a signal-processing device such as an amplifier. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > signal > [noun] > unwanted part of signal > types of > quantity introduced by processor noise factor1936 noise figure1944 1936 Sci. Monthly Nov. 473/1 Even in these circuits, however, the noise factor still sets limits of attenuation and amplification. 1952 Wireless World June 224/1 The noise factor is 3. It means that the result of amplifier noise is to make the noise 3 times as bad as in the ideal case where the signal source is the sole noise generator. 1995 Instruments & Exper. Techniques 38 354/1 The one-octave microwave planar detector has the following parameters in the 4.2–8.4 GHz band: a noise factor of 1.25 ± 0.25 dB; a gain of 43.5 ± 1.5 dB [etc.]. < as lemmas |
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