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2019 | OriginalPaper | Chapter

Thunder Interference Rejection Method for Frequency Monitor System in HFSWR

Authors : Hongzhi Li, Changjun Yu, Bin Zhao

Published in: Communications, Signal Processing, and Systems

Publisher: Springer Singapore

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Abstract

High frequency surface wave radar (HFSWR) works in shortwave bands with complex electromagnetic environment, which contains not only a lot of radio communications, but also atmospheric noise, thunder interference and personal interference. Thunder interference of near area has a great influence on frequency monitor system (FMS) in HFSWR and may even lead to target detection failure or formation track failure. The paper researches on thunder interference rejection method and gives a double threshold method in time-frequency domain to detect thunder interference then remove legitimately. The results of experiments by the presented method show that the effect of thunder interference rejection is significant and the method can greatly improve the accuracy of frequency selecting.

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Title: Thunder Interference Rejection Method for Frequency Monitor System in HFSWR
Authors: Hongzhi Li
Changjun Yu
Bin Zhao
Publisher: Springer Singapore
Book: Communications, Signal Processing, and Systems
Print ISBN: 978-981-10-6570-5

Electronic ISBN: 978-981-10-6571-2

Copyright Year: 2019
DOI: https://doi.org/10.1007/978-981-10-6571-2_298