Modeling and Analysis of Sea-clutter Signal for Wide-band Radar Based on Electromagnetic Model

WANG Tong; TONG Chuangming; XU Guangfei; PENG Peng; WANG Yijin

doi:10.11999/JEIT210180

Volume 44 Issue 4

Apr. 2022

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Article Navigation > Journal of Electronics & Information Technology > 2022 > 44(4): 1358-1365

WANG Tong, TONG Chuangming, XU Guangfei, PENG Peng, WANG Yijin. Modeling and Analysis of Sea-clutter Signal for Wide-band Radar Based on Electromagnetic Model[J]. Journal of Electronics & Information Technology, 2022, 44(4): 1358-1365. doi: 10.11999/JEIT210180

Citation:

WANG Tong, TONG Chuangming, XU Guangfei, PENG Peng, WANG Yijin. Modeling and Analysis of Sea-clutter Signal for Wide-band Radar Based on Electromagnetic Model[J]. Journal of Electronics & Information Technology, 2022, 44(4): 1358-1365. doi: 10.11999/JEIT210180

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Modeling and Analysis of Sea-clutter Signal for Wide-band Radar Based on Electromagnetic Model

doi: 10.11999/JEIT210180

1.
Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, China
2.
Unit 63892 of PLA, Luoyang 471003, China

Funds: The National Natural Science Foundation of China (61901510), The Natural Science Basic Research Program of Shaanxi Province (2021JQ-365)

Received Date: 2021-03-01
Accepted Date: 2021-11-05
Rev Recd Date: 2021-10-25

Available Online: 2021-11-13

Publish Date: 2022-04-18

Abstract

Abstract

For the radar signals simulations of time-varying ocean surface, a radar signal model of sea clutter incorporating the electromagnetic scattering mechanism and radar signal modulation characteristics is developed. First, a set of time-varying sea surface geometric samples are constructed, and an efficient simulation of sea scattering at each time is performed by accelerating the calculation of the improved facet-based two-scale model, and the accuracy of the electromagnetic calculation method is demonstrated by comparing with the measured data. Then the band-wide echo signal model is established in the form of sub-pulse, and the scattering data of each surface element is replaced with its complex amplitude to complete the radar signal modeling. In simulations, the rationality and efficiency of the electromagnetic model are verified, and the statistical analysis of sea clutter data shows the effect of pulse compression on clutter suppression. This sea clutter model not only takes into account of the complex scattering mechanism and motion characteristics of the ocean, but also has the form of a general band-wide signal, so it can provide comprehensive source data for the interpretation of ocean scattering phenomena and the analysis of signal processing algorithms.
- Wide band radar,
- Electromagnetic scattering,
- Sea clutter,
- Facet-based two scale model

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References(23)

References

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