機(jī)載SAR大斜視角成像算法及其性能分析
Imaging Algorithms and Analysis of Airborne SAR in Large Squint Mode
-
摘要: 文章研究了機(jī)載合成孔徑雷達(dá)(SAR)在大斜視角下的成像算法，并分析了算法的成像性能。根據(jù)大斜視角SAR成像的空間幾何模型和回波信號(hào)特點(diǎn)，提出了RD算法的改進(jìn)方案。對(duì)改進(jìn)的RD算法和ECS算法的仿真表明，其成像性能滿足了大斜視角下機(jī)載SAR成像處理的要求。
-
關(guān)鍵詞:
- 合成孔徑雷達(dá)(SAR);大斜視角; 改進(jìn)的RD算法; ECS算法
Abstract: This paper studies image algorithms and analyses imaging quality of air-borne Synthetic Aperture Radar (SAR) in large squint mode. Based on the spatial geometry model of squint mode air-borne SAR and echo response, a method to improve RD algorithm is introduced in detail, and the flowcharts of this algorithm and Extended Chirp Scaling (ECS) algorithm are given. The simulation results demonstrate that these two algorithms meet the requirements of air-borne SAR imaging in large squint mode. -
計(jì)量
- 文章訪問(wèn)數(shù): 2567
- HTML全文瀏覽量: 131
- PDF下載量: 1098
- 被引次數(shù): 0
下載:
