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

Zhongtao LUO; Meihui YAN; Kun LU; Zishu HE

doi:10.11999/JEIT200655

Volume 43 Issue 3

Mar. 2021

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Zhongtao LUO, Meihui YAN, Kun LU, Zishu HE. The Characteristics of Sea-clutter and Interferences in Various Domains and the Detection of Sea-clutter for Over-The-Horizon Radar[J]. Journal of Electronics & Information Technology, 2021, 43(3): 580-588. doi: 10.11999/JEIT200655

Citation:

Zhongtao LUO, Meihui YAN, Kun LU, Zishu HE. The Characteristics of Sea-clutter and Interferences in Various Domains and the Detection of Sea-clutter for Over-The-Horizon Radar[J]. Journal of Electronics & Information Technology, 2021, 43(3): 580-588. doi: 10.11999/JEIT200655

Citation:

Zhongtao LUO, Meihui YAN, Kun LU, Zishu HE. The Characteristics of Sea-clutter and Interferences in Various Domains and the Detection of Sea-clutter for Over-The-Horizon Radar[J]. Journal of Electronics & Information Technology, 2021, 43(3): 580-588. doi: 10.11999/JEIT200655

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

doi: 10.11999/JEIT200655

1.
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
Nanjing Research Institute of Electronics Technology, Nanjing 210013, China
3.
School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

Funds: The National Natural Science Foundation of China (61701067, 61702065)

Received Date: 2020-08-03
Rev Recd Date: 2020-12-24

Available Online: 2021-01-04

Publish Date: 2021-03-22

Abstract

Abstract

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.
- Over-The-Horizon (OTH) radar,
- Sea-clutter,
- Interference,
- Characteristic analysis

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References(22)

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