Optimal Order of Time-Domain Adaptive Filter for Anti-Jamming Navigation Receiver

Adaptive filtering algorithms can be used on the time-domain processing of navigation receivers to suppress interference and maintain the navigation and positioning function. The filter length can affect the interference suppression performance and hardware utilization simultaneously. In practical e...

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Bibliographic Details
Published in:Remote sensing (Basel, Switzerland) Switzerland), 2022-01, Vol.14 (1), p.48
Main Authors: Song, Jie, Lu, Zukun, Xiao, Zhibin, Li, Baiyu, Sun, Guangfu
Format: Article
Language:English
Subjects:
Adaptive algorithms
adaptive filter processing
Adaptive filters
Algorithms
Bandstop filters
Design techniques
Global Navigation Satellite System (GNSS) receiver
Interference
Jamming
Jamming performance
Kaiser window
Mean square errors
Navigation
Navigation systems
Noise
optimal filter order
Receivers
Receivers & amplifiers
Remote sensing
Signal processing
Time domain analysis
time-domain anti-jamming
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Summary:Adaptive filtering algorithms can be used on the time-domain processing of navigation receivers to suppress interference and maintain the navigation and positioning function. The filter length can affect the interference suppression performance and hardware utilization simultaneously. In practical engineering, the filter length is usually set to a large number to guarantee anti-jamming performance, which means a high-performance receiver requires a high-complexity anti-jamming filter. The study aims at solving the problem by presenting a design method for the optimal filter order in the time-domain anti-jamming receiver, with no need for detailed interference information. According to interference bandwidth and jam-to-signal ratio (JSR), the approach designed a band-stop filter by Kaiser window for calculating the optimal filter order to meet interference suppression requirements. The experimental results show that the time-domain filtering processing has achieved good interference suppression performance for engineering requirements with optimal filter order in satellite navigation receivers.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs14010048