摘要
高功率微波窄脉冲雷达能在实现目标探测的同时,干扰、扰乱、降级和损伤目标电子系统,具有广阔的应用前景。然而,其窄脉冲信号体制在合成孔径雷达成像领域研究较少。因此,本文根据高功率微波窄脉冲信号特点,基于零多普勒和数据录取坐标系下不同瞬时斜距方程建立回波模型,提出了2种坐标系下的距离多普勒成像算法。仿真实验表明,在较低斜视角下,本文提出的算法成像质量良好,且与后向投影算法相比,效率提升显著。
High power microwave narrow-pulse radar,capable of achieving target detection while enabling jamming,disruption,degradation,and damage to target electronic systems,demonstrates broad application prospects.However,its narrow-pulse signal mechanism has rarely been explored in synthetic aperture radar imaging.Considering the characteristics of high power microwave narrow pulse signal,in this paper,echo models are established based on the different instantaneous slant range equations under both zero Doppler and echo acquiring coordinate systems.Correspondingly,two modified range-Doppler algorithms are proposed for these coordinate systems.Simulation results demonstrate that the proposed algorithms achieve satisfactory imaging quality under low squint angle,with significantly improved computational efficiency compared to the back projection algorithm.
作者
罗雨潇
谢少毅
邰宁
汪海波
张云硕
杨志强
LUO Yuxiao;XIE Shaoyi;TAI Ning;WANG Haibo;ZHANG Yunshuo;YANG Zhiqiang(Key Laboratory of Advanced Science and Technology on High Power Microwave,Xi’an 710024,China)
出处
《现代应用物理》
2025年第5期121-130,共10页
Modern Applied Physics
基金
先进高功率微波技术重点实验室基金资助项目(Z091230819)。
关键词
高功率微波
窄脉冲
成像
距离多普勒算法
high power microwave
narrow pulse
synthetic aperture radar imaging
range-Doppler algorithm
