Analysis of FM demodulator output noise with applications to FM telemetry

  title={Analysis of FM demodulator output noise with applications to FM telemetry},
  author={Rajendra Kumar},
We present an analysis for evaluating the probability density function (pdf) of the noise at the output of the frequency demodulator. It is shown that the noise is non-Gaussian and that for low to medium signal-to-noise power ratios, its pdf differs very significantly from the Gaussian pdf commonly assumed in simplified analysis. These results are very important for analyzing the performance of the PCM/FM type of modulation schemes used in telemetry systems as illustrated in the paper. 


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