调频步进雷达扩展目标运动补偿研究

本文首先对扩展目标的一维距离像进行了离散建模,然后给出了扩展目标调频步进雷达回波信号的数学模型,深入分析了径向运动对一维距离像的影响,推导得到了运动补偿的精度要求。研究了时域相关法与最小脉组误差准则,提出了一种适合工程需要的运动补偿算法。最后,进行了计算机仿真实验,证明了本文的结论。

Studies on Motion Compensation for High Resolution Profile of Extended Target Produced by Stepped Chirp Radar

In this paper a discrete model is firstly set up for High Resolution Profile of an extended target; then the paper presents the math model of echo signal from an extended target produced by a Stepped Chirp Radar. The effect of target motion on a range profile is analyzed profoundly, and then precision necessitation is derived for motion compensation. Studies on the method of time field correlation and the rule based on the least burst error,the paper present an motion compensation arithmetic which suits the project requirement. At last, the result of a cyber-emulation proves the conclusion of the paper.