作者: Frank Cassara , Donald Hess
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摘要: The FM threshold performance of the frequency demodulator with feedback (FMFB) is experimentally optimized. Rules thumb for practical design FMFB limiter in loop are proposed. Such rules provide optimum given specifications received signal. Equivalences among FMFB, phase-locked loop, and limiter- discriminator offer some additional physical insight into threshold-extending mechanism not presented by previous investigators.