Study on multipath effect under the environment of PCM/FM telemetry soft demodulation
Date
2014
Authors
Fu, G.
Wu, Y.J.
Li, R.L.
Wang, L.P.
Editors
Ma, J.Z.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Applied Mechanics and Materials, 2014 / Ma, J.Z. (ed./s), vol.602-605, pp.2298-2301
Statement of Responsibility
Conference Name
2014 2nd International Conference on Precision Mechanical Instruments and Measurement Technology (ICPMIMT 2014) (30 May 2014 - 31 May 2014 : Chongqing, China)
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.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright 2014 Trans Tech Publications