The Characteristics of Sea-clutter and Interferences in Various Domains and the Detection of Sea-clutter for Over-The-Horizon Radar

被引：0
|
作者：
Luo Zhongtao [1 ]
Yan Meihui [1 ]
Lu Kun [2 ]
He Zishu [3 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Sch Commun & Informat Engn, Chongqing 400065, Peoples R China
[2] Nanjing Res Inst Elect Technol, Nanjing 210013, Peoples R China
[3] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 611731, Peoples R China
来源：
JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY | 2021年 / 43卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Over-The-Horizon (OTH) radar; Sea-clutter; Interference; Characteristic analysis;
D O I：
10.11999/JEIT200655
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Considering that the receiving data of Over-The-Horizon (OTH) radar is complicated, a signal analysis method based on various domains and maps is proposed, and the characteristics of sea-clutter, transient interference and radio frequency interference are discussed in this paper. By employing the time, the frequency, the range, the period and the Doppler domains, six kinds of two dimensional matrices or maps are constructed, which forms the Five-Domain-Six-Map (5D6M) concept for the radar receiving data. By using the 5D6M, the signal components of the receiving data and reveal their characteristics can be separated in various domains, including the spectrum and Doppler property of sea-clutter, the power and transient features of transient interference, and the narrowband and Doppler property of radio frequency interference. The characteristic analysis based on the 5D6M can help the radar signal analysis and processing. By taking the sea-clutter as an example, a novel method for detecting the sea-clutter Doppler based on the frequency-Doppler map is proposed.
引用
收藏
页码：580 / 588
页数：9
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