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Discussion on Networked and Integrated Space-Ground Information System Read chapter Read first chapter

2018 | OriginalPaper | Chapter

19. An Improved MFSK Signal Detection Algorithm for Mars Probe Entry, Descent, Landing Phase

Authors : Tiansheng Zhang, Xiaolin Zhang, Zan Li, Junhai Bao

Published in: Proceedings of the 28th Conference of Spacecraft TT&C Technology in China

Publisher: Springer Singapore

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Abstract

To solve the high computational complexity problem of carrier recovery enhancement for Maximum-Likelihood Doppler shift estimation algorithm (CRE-ML), the relationship between four searching dimensions and carrier recovery enhancement is analyzed. A time-domain matching-average periodogram algorithm based on 4-dimensions searching (4D-TDMAP) is proposed which decreases the algorithm complexity by reducing the Doppler rate matching accuracy requirement. Simulations are performed when the maximum Doppler frequency is 50 kHz, Doppler frequency rate varies from −1000 to 1000 Hz/s, which refers to the high dynamics during the EDL stage of Mars Science Laboratory (MSL). The results show the proposed algorithm reaches the same performance as the CRE-ML does with its computational complexity decreased to 0.26%, and its MFSK signal detection threshold decreased by up to 3 dB compared with traditional time-domain matching-average periodogram algorithm.

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previous chapter Development of the Lunar-Earth and Deep Space TT&C System with Several Key Techniques
next chapter Robust Fault Detection for a Spacecraft with Lipschitz Nonlinear System
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Metadata
Title
An Improved MFSK Signal Detection Algorithm for Mars Probe Entry, Descent, Landing Phase
Authors
Tiansheng Zhang
Xiaolin Zhang
Zan Li
Junhai Bao
Copyright Year
2018
Publisher
Springer Singapore
Book
Proceedings of the 28th Conference of Spacecraft TT&C Technology in China

Print ISBN: 978-981-10-4836-4

Electronic ISBN: 978-981-10-4837-1

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-981-10-4837-1_19

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