Accession Number : ADA311269

Title :   Numerical FM Demodulation Enhancements.

Descriptive Note : Rept. for 1 Apr 94-1 Apr 96,

Corporate Author : ROME LAB ROME NY

Personal Author(s) : Noga, Andrew J.

PDF Url : ADA311269

Report Date : JUN 1996

Pagination or Media Count : 188

Abstract : An analysis of the backward difference numerical FM demodulation process is presented. Both theoretical and simulated results are given. A method of enhancing the performance of the demodulator in specific receive signal conditions using frequency feedback techniques is developed and evaluated. The receive signal conditions that are addressed are frequency deviations that are large relative to the bandwidth of the message signal, a low uniform sample rate resulting from decimation, and noise strengths that yield values of input carrier to noise ratio of the order of ten (10) db or more.

Descriptors :   *FREQUENCY MODULATION, *DEMODULATION, SIGNAL PROCESSING, INPUT, SIGNAL TO NOISE RATIO, NUMERICAL ANALYSIS, FEEDBACK, MESSAGE PROCESSING, DEMODULATORS, RADIO SIGNALS, NOISE(RADIO).

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE