| 单词 | noise temperature |
| 释义 | > as lemmasnoise temperature noise temperature n. Physics a measure of the power per unit bandwidth of a source of white noise, defined as the temperature (in kelvins) at which the source would generate thermal noise at the same power per unit bandwidth. ΚΠ 1948 R. V. Pound Microwave Mixers ii. 105 Noise-temperature test equipment resembles a complete supheterodyne receiver. 1990 OnSat 8 July 5/1 Footprint maps and system parameters such as LNB [= low noise block] noise temperature and antenna diameter. < as lemmas |
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