An efficient cylindrical coordinate subgrid parabolic equation model for predicting the power distribution and coverage of radar signals in a complex multi‐scale marine environment
| Autor: | Xiaochuan Deng, C. Liao, Dongmin Zhang, Feng Ju, Yuping Shang, Haijing Zhou |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Numerical approximation and analysis
Data and information acquisition processing storage and dissemination in geophysics Instrumentation and techniques for geophysical hydrospheric and lower atmosphere research Signal processing and detection Radar equipment systems and applications Oceanographic and hydrological techniques and equipment Electrical engineering. Electronics. Nuclear engineering TK1-9971 |
| Zdroj: | Electronics Letters, Vol 57, Iss 3, Pp 103-105 (2021) |
| Druh dokumentu: | article |
| ISSN: | 1350-911X 0013-5194 |
| DOI: | 10.1049/ell2.12028 |
| Popis: | Abstract An efficient cylindrical coordinate subgrid parabolic equation model is proposed to predict the power distribution and coverage of radar signals in a complex multi‐scale marine environment. The model adopts different grid systems for the multi‐scale marine environment including flat sea surface, islands, ships and other elements, and realizes the transformation between grids through spatial mesh refinement technology. For the prediction of radio wave propagation in a large area complex environment, the model can balance the calculation efficiency and accuracy, thus effectively reducing the memory requirement and CPU computing time. In addition, combined with digital map and radar equation, the power distribution and coverage of radar signal in complex multi‐scale marine environment are calculated. Numerical results verify the correctness and efficiency of the proposed model. |
| Databáze: | Directory of Open Access Journals |
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