相位测距解模糊中几种差频选择方法的比较  

Comparison of different methods of choosing frequency difference in de-ambiguous techniques in the measurement of range by phases

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5期586-588,640,共4页Systems Engineering and Electronics

摘　　要：在数字化多组双频连续波雷达相位测距解模糊中有多种差频选择方法,给出了其中的3种方法。并通过计算机仿真对这3种方法进行了分析和比较。结果表明,多组差频互质参差法在信噪比较高时具有较高的测量精度;多组差频幂 指数参差法可以用于点目标和体目标的测量;一组大差频与互质参差的多组小差频法则具有较好的抗噪声性能。In multi-dual frequency CW radar there are several methods of choosing frequency difference in de-ambiguous techniques in the measurement of range by phases. Three choosing methods are compared by computer simulation. Multi-frequency differences, which are reciprocal prime numbers has high precision on condition that the SNR is high. Multi-frequency differences, which are shown in the form of power-exponent can be used in the measurement of both dot targets and body targets. One big frequency difference and several little reciprocal prime frequency differences has good ability in anti-noise.\;

关 键 词：连续波雷达 相位测距 解模糊 参差 幂-指数 

分 类 号：TN957.51[电子电信—信号与信息处理]