测控技术2025，Vol.44Issue(3)：56-63,8.DOI:10.19708/j.ckjs.2025.01.201
基于逆合成孔径雷达大转角高分辨成像测量方法
High Resolution Imaging Measurement Method for Large Angle Based on Inverse Synthetic Aperture Radar
于潮 1何玉洁 2马涛 1许涛1
作者信息
- 1. 中国人民解放军95765 部队,甘肃酒泉 735018
- 2. 中国人民解放军95859 部队,甘肃酒泉 735018
- 折叠
摘要
Abstract
Due to the phenomenon of migration through resolution cell(MTRC)of scattering points far from the center of the imaging area during target imaging using inverse synthetic aperture radar(ISAR)under large an-gle conditions,it can affect the measurement results of the target.Due to the complex motion characteristics of the target,traditional ISAR imaging methods are prone to image blurring and distortion.The range-Doppler(R-D)algorithm and traditional envelope alignment methods can effectively reduce the impact of complex target motion on ISAR images,but there are still limitations in processing large angle measurement imaging accelera-tion targets and micro movements.Based on this,a large angle high resolution fine imaging method for ISAR is proposed,which adopts an ISAR target imaging algorithm combining the high-order Keystone transform-based MTRC correction algorithm and polar format algorithm(PFA).Comparative explanation,theoretical analysis,simulation,and experimental verification are conducted for the reliability of the ISAR target imaging algorithm.The experimental results show that using this algorithm can significantly improve the target imaging resolution of ISAR under large angle conditions.关键词
逆合成孔径雷达/大转角/Keystone变换/PFA成像算法Key words
ISAR/large angle/Keystone transform/PFA imaging algorithm分类
信息技术与安全科学引用本文复制引用
于潮,何玉洁,马涛,许涛..基于逆合成孔径雷达大转角高分辨成像测量方法[J].测控技术,2025,44(3):56-63,8.
