Study on multipath effect under the environment of PCM/FM telemetry soft demodulation

Fu Gang, Wu Yanjun, Renlong Li, Li Wang

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    Because the reentry telemetry wireless channel multipath propagation effects and the effect, channel will introduce transmission time delay dispersion, caused between the PCM/FM telemetry signal crosstalk and signal to noise ratio is too low, significantly increase BER. While traditional demodulation method because the demodulator threshold higher no longer apply. Study the problem, a multiple Symbol Detection method based on sliding strategy (Multi - Symbol Detection, MSD), can effectively overcome the low SNR and inter symbol interference. The simulation and test results verify the effectiveness of the method.

    Original languageEnglish
    Pages2298-2301
    Number of pages4
    DOIs
    Publication statusPublished - 2014
    Event2nd International Conference on Precision Mechanical Instruments and Measurement Technology, ICPMIMT 2014 -
    Duration: 30 May 2014 → …

    Conference

    Conference2nd International Conference on Precision Mechanical Instruments and Measurement Technology, ICPMIMT 2014
    Period30/05/14 → …

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