Software Demodulation Method of PCM/FM Signal Based on the Maximum Likelihood Estimation

Yan Jun Wu; Gang Fu; Xue Lu Yao

doi:10.4028/www.scientific.net/AMM.556-562.5093

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Software Demodulation Method of PCM/FM Signal...

Software Demodulation Method of PCM/FM Signal Based on the Maximum Likelihood Estimation

Abstract:

Describes the establishment of maximum likelihood estimation model and victor than the realization of the search path. At the same time according to the data block transmission mode in the software and the characteristics of victor than path search, research a kind of software demodulation is implemented based on data redundancy, make full use of the parallel processing computer system performance, improve the operation efficiency of the algorithm. And the algorithm error rate as an index, compares the software likelihood estimation algorithm with the traditional frequency demodulation performance, results show that the BER 10^-4 when algorithm can get the demodulation gain of about 3 dB.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

5093-5097

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.5093

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Cite this paper

Online since:

May 2014

Authors:

Yan Jun Wu*, Gang Fu, Xue Lu Yao

Keywords:

MLE, Parallelization, PCM/Fm, Software

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* - Corresponding Author

References

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