Analysis of High-Frequency EM Scattering Properties on Time-Varying Sea Surface

LI Changze; TONG Chuangming; QI Lihui; WANG Tong; ZHAO Haizhou

doi:10.1049/cje.2016.03.028

Volume 25 Issue 2

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LI Changze, TONG Chuangming, QI Lihui, et al., “Analysis of High-Frequency EM Scattering Properties on Time-Varying Sea Surface,” Chinese Journal of Electronics, vol. 25, no. 2, pp. 384-390, 2016, doi: 10.1049/cje.2016.03.028

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LI Changze, TONG Chuangming, QI Lihui, et al., “Analysis of High-Frequency EM Scattering Properties on Time-Varying Sea Surface,” Chinese Journal of Electronics, vol. 25, no. 2, pp. 384-390, 2016, doi: 10.1049/cje.2016.03.028

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Analysis of High-Frequency EM Scattering Properties on Time-Varying Sea Surface

doi: 10.1049/cje.2016.03.028

1.
Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China;
2.
Military Representative Office of PLA in 786 Factory, Xi'an 710051, China

Funds: This work is supported by the National Natural Science Foundation of China (No.61372033).

Received Date: 2015-05-19
Rev Recd Date: 2015-08-24
Publish Date: 2016-03-10

Abstract

Abstract

This paper proposes to solve the extralarge scale Electromagnetic (EM) scattering problem on a wind-driven sea surface at Low-grazing-angle (LGA) directed against a shore-based radar with an Iterative physical optics (IPO) model. Using Monte Carlo simulations, it compares the average Doppler spectra of backscattered signals at different angles and sea states. The methods are:the forward-backward methodology and its modification with under-relaxation iteration which improves convergence and stability of the IPO; the local iteration methodology and the Fast far-field approximation (FaFFA) in the matrix-vector product which reduce the computational complexity based on the scattering characteristics of sea surface. The simulations show a broadening effect of the Doppler spectra in a more complicated sea state at LGA.
- Shore-based radar,
- Doppler spectra,
- LGA,
- Iterative model,
- Forward-backward methodology

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References(18)

References

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