高精度多目标运动参数估计  

Estimation of multi-targets' parameters with a high precision

作　　者：王胜华[1] 曹运合[1] 张守宏[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《系统工程与电子技术》2004年第8期1049-1052,共4页Systems Engineering and Electronics

摘　　要：针对连续波体制的测量雷达的应用场合,提出了一种多目标运动参数(速度、加速度)高精度的测量方法。该算法运用快速傅里叶变换和解线性调频(dechirping)补偿谱分析精确测速度和加速度,对加速度搜索步长的选择问题采用了逐次逼近法,则可在保证测量精度的同时,运算量大为减少,因而易于实时处理和工程实现。给出了应用该方法的具体工程实现,通过仿真实验证明该算法的有效性。To investigate the measurement radar of constant wave system, a high precision method is presented which can measure the movement parameters (velocity and acceleration) of multi-targets simultaneously. The values of velocity and acceleration are gotten accurately by using FFT and dechirping algorithms and an algorithm of approaching step by step is chosen when hunting the acceleration, so the method decreases computation greatly and makes the real-time realization more easily. A project scheme of engineering implementation is given here and the computer simulations demonstrate the effectiveness of this method.

关 键 词：测量雷达 运动参数 解线性调频 逐次逼近法 连续波 高精度 

分 类 号：TN957.51[电子电信—信号与信息处理]