| 关于小信号鉴频的研究 |
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| 引用本文： | 李玉章.关于小信号鉴频的研究[J].沈阳大学学报,1994(2). |
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| 作者姓名： | 李玉章 |
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| 摘 要： | 本文以相位鉴频器为例,给出了小信号时的鉴频公式.同时通过选取检波器二极管的最佳偏压点,一方面调整小信号时谐振电路的Q值,选取最佳工作状态;另一方面又增大检波器的电压传输系数.从而达到提高小信号鉴频的灵敏度,并改善鉴频失真的目的.
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| 关 键 词： | 鉴频 检波 灵敏度 失谐 |
Studg About FrerquencgDiscrimination on Small - Signals |
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| Li Yuzhang.Studg About FrerquencgDiscrimination on Small - Signals[J].Journal of Shenyang University,1994(2). |
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| Authors: | Li Yuzhang |
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| Abstract: | This essay shows the frequency discrimination fonmula of snall signal with the ex-ample of phase - shift discrriminator. Meanwhile, by accessing the optimum bias voltage ofdetector diode, the Qvalue of rersonant cirrcuit at small signal is adjusted to get the bestworking conclition and tne voltage transmission coefficient of wave-detector is increased aswell. So the goal is reached to get high sensitivity of small signal frrequency discrimination and improve the distortion of it. |
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| Keywords: | frequency discrimination detection sensitivity misalignment |
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