Main beam cochannel interference suppression by range adaptive processing for HFSWR

The performance of high-frequency (HF) surface wave radar degrades significantly due to cochannel interferences (CCIs) in the user-congested HF band (3-30 MHz). Most of the conventional techniques generally follow a simple spatial adaptive processing (SAP) only in the presence of spatially structure...

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Published in:IEEE signal processing letters 2006-01, Vol.13 (1), p.29-32
Main Authors: Wan Xianrong, Wan Xianrong, Cheng Feng, Cheng Feng, Ke Hengyu, Ke Hengyu
Format: Article
Language:English
Subjects:
Adaptive structures
Algorithms
Beams (radiation)
Cochannel interference
Cochannel interference (CCI)
Computer simulation
Frequency
Hafnium
high-frequency (HF) surface wave radar
Interchannel interference
Interference
Interference cancellation
Interference suppression
Oceans
Radar
Radiofrequency interference
Sea surface
Signal processing
Surface waves
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description The performance of high-frequency (HF) surface wave radar degrades significantly due to cochannel interferences (CCIs) in the user-congested HF band (3-30 MHz). Most of the conventional techniques generally follow a simple spatial adaptive processing (SAP) only in the presence of spatially structured interference, but sometimes, we cannot rely on SAP to cancel interference received through the main beam. In this letter, the correlation function of CCI applied in range domain is analyzed, and a new range adaptive processing technique is utilized to suppress the CCI. Real and simulated data results are presented that the general and robust algorithm can achieve effective CCI suppression without comprising the target detection.
doi_str_mv 10.1109/LSP.2005.860546
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subjects Adaptive structures
Algorithms
Beams (radiation)
Cochannel interference
Cochannel interference (CCI)
Computer simulation
Frequency
Hafnium
high-frequency (HF) surface wave radar
Interchannel interference
Interference
Interference cancellation
Interference suppression
Oceans
Radar
Radiofrequency interference
Sea surface
Signal processing
Surface waves
title Main beam cochannel interference suppression by range adaptive processing for HFSWR
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