HIGH-RESOLUTION RADAR IMAGE FAST IMAGING FORMULA AND SIMULATION

被引：0
|
作者：
Wu, Zhixin [1 ]
Gao, Yuexin [3 ]
Fu, Jixiang [2 ]
Xue, Min [1 ]
Xing, Mengdao [1 ,2 ]
机构：
[1] Xidian Univ, Natl Key Lab Radar Signal Proc, Xian, Peoples R China
[2] Xidian Univ, Acad Adv Interdisciplinary Res, Xian, Peoples R China
[3] Xidian Univ, Sch Aerosp Sci & Technol, Xian, Peoples R China
来源：
IGARSS 2024-2024 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, IGARSS 2024 | 2024年
关键词：
Wideband high-resolution; SAR radar image; Fast imaging Formula; SAR target simulation;
D O I：
10.1109/IGARSS53475.2024.10640837
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
The Fast-Imaging Formula ( FIF) enables rapid radar image simulation through One-Shot ray-tracing. However, the classical Imaging Formula is approximate results under the conditions of small angle and bandwidth. The application of FIF to wideband high-resolution radar images is subject to discussion. This study constructs simulations by employing the '6+6' Degrees of Freedom (DoF) motion model, determining the imaging plane. Utilizing the Discrete Fourier Transform (DFT), the range profile formula for large bandwidth is obtained, and the result is frequency dependent. According to the principle of spectrum correction, the integration is modified to obtain the image primitive suitable for high-resolution image simulation. The simulation results of the ship target model and the range profile analysis of the ray tube verify the effectiveness of the proposed method.
引用
收藏
页码：2597 / 2600
页数：4
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