An Orthogonal Projection Algorithm to Suppress Interference in High-Frequency Surface Wave Radar

被引：8
|
作者：
Chen, Zezong [1 ,2 ]
Xie, Fei [3 ]
Zhao, Chen [3 ]
He, Chao [3 ]
机构：
[1] Wuhan Univ, Sch Elect Informat, Wuhan 430072, Hubei, Peoples R China
[2] Wuhan Univ, Collaborat Innovat Ctr Geospatial Technol, Wuhan 430072, Hubei, Peoples R China
[3] Wuhan Univ, Sch Elect Informat, Wuhan 430072, Hubei, Peoples R China
来源：
REMOTE SENSING | 2018年 / 10卷 / 03期
基金：
中国国家自然科学基金;
关键词：
HFSWR; RFI; ionospheric clutter; orthogonal projection; interference cancellation; THE-HORIZON RADAR; HF RADAR; CANCELLATION; SEA;
D O I：
10.3390/rs10030403
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
High-frequency surface wave radar (HFSWR) has been widely applied in sea-state monitoring, and its performance is known to suffer from various unwanted interferences and clutters. Radio frequency interference (RFI) from other radiating sources and ionospheric clutter dominate the various types of unwanted signals because the HF band is congested with many users and the ionosphere propagates interference from distant sources. In this paper, various orthogonal projection schemes are summarized, and three new schemes are proposed for interference cancellation. Simulations and field data recorded by experimental multi-frequency HFSWR from Wuhan University are used to evaluate the cancellation performances of these schemes with respect to both RFI and ionospheric clutter. The processing results may provide a guideline for identifying the appropriate orthogonal projection cancellation schemes in various HFSWR applications.
引用
收藏
页数：19
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