
 Demodulation Document (Site not responding. Last check: 20071107) 
  In a previous report, we discussed the details of demodulation of an FM signal in a DSP Environment, and presented the details of a "Linear" Data Fit Estimation process as well a "Least Squares" Data Fit Estimation process. 
  In the implementation of a "Reciprocal Count Scaling" demodulation process, an exact analytic solution is realized, and guarantees  in terms of Signaltonoise ratio, Total Harmonic Distortion, and pure scaling accuracy  the most accurate results attainable from a system of this type. 
  As concerns NSI's demodulation process, consider two successive zero crossing events in a sinusoidal waveform; An average instantaneous frequency value, F(t), can be found by taking the reciprocal of twice the measured period, T(t), between the zerocrossings... 
 www.peganet.net /numatech/recipfit.html (1072 words) 
