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| Content Provider | IET Digital Library |
|---|---|
| Author | Li, Changze Tong, Chuangming Qi, Lihui Wang, Tong Zhao, Haizhou |
| 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. |
| Starting Page | 384 |
| Ending Page | 390 |
| Page Count | 7 |
| ISSN | 10224653 |
| Volume Number | 25 |
| e-ISSN | 20755597 |
| Issue Number | Issue 2, Mar (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/cje/25/2 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/cje.2016.03.028 |
| Journal | Chinese Journal of Electronics |
| Publisher Date | 2016-03-01 |
| Access Restriction | Open |
| Rights Holder | © Chinese Institute of Electronics |
| Subject Keyword | Average Doppler Spectra Backscattered Signal Computational Complexity Data And Information; Acquisition, Processing, Storage And Dissemination in Geophysics Digital Signal Processing Doppler Shift Electromagnetic Wave Propagation Electromagnetic Wave Scattering Extra-large Scale Electromagnetic Scattering Problem Extra-large Scale EM Scattering Problem FaFFA Fast Far-field Approximation Forward-backward Methodology Geophysical Signal Processing Geophysics Computing High-frequency EM Scattering Property Analysis Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Interpolation And Function Approximation IPO Model Iterative Method Iterative Physical Optics Model LGA Linear Algebra Local Iteration Methodology Low-grazing-angle Matrix Algebra Matrix-vector Product Monte Carlo Method Monte Carlo Simulation Method Numerical Analysis Numerical Approximation And Analysis Oceanographic And Hydrological Technique And Equipment Optical Aspects of Oceanography Probability Theory Radar Equipment Radar Signal Processing Sea Surface Scattering Characteristic Sea-air Interactions Seawater Shore-based Radar Statistics Stochastic Linearised SCUC Surface Electromagnetic Wave System And Application Time-varying Sea Surface Under-relaxation Iteration Wind Wind-driven Sea Surface |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Mathematics Electrical and Electronic Engineering |
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