一种引用全相参技术的连续波相位测距方法  

A Continuous Wave Phase Ranging Method Based on Full Coherent Technology

作　　者：汪瀚文 张丕状[1] WANG Hanwen;ZHANG Pizhuang(Key Laboratory of Information Detection and Processing,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学信息探测与处理重点实验室,山西太原030051

出　　处：《测试技术学报》2018年第6期500-504,共5页Journal of Test and Measurement Technology

摘　　要：无论是在军事上、工业上还是生活中,测距系统的精确度都是备受关注的性能指标之一.为了降低连续波相位测距中鉴相的误差值,提高测距系统的精确度,提出一种引用全相参技术的连续波相位测距方法,利用同一自主震源提供发射波调制信号频率和数据采集的采样频率,从理论公式和仿真实验两个不同的角度,分别对比分析了全相参和非相参技术下,相位测距方法的误差大小.证实了引用全相参技术的连续波相位测距方法能有效降低测量相位的误差值,从而提高测距系统的精确度.Whether in military,industrial or life,the accuracy of the ranging system is one of the performance indicators of great concern.In order to reduce the error value of phase discrimination in continuous wave phase ranging and improve the accuracy of the ranging system,a continuous phase-ranging method based on full-coherence technology is proposed.The same autonomous source is used to provide the frequency of the transmitted-wave modulated signal and the sampling frequency of data acquisition.From the two different angles of theoretical formula and simulation experiment,the error of phase ranging method under full coherent and non-coherent techniques is compared and analyzed.It is confirmed that the continuous wave phase ranging method which uses the full coherent technique can effectively reduce the error value of the measurement phase.So the continuous wave phase ranging method improve the accuracy of the ranging system.

关 键 词：相位测距 鉴相 全相参 误差分析 

分 类 号：TN919.5[电子电信—通信与信息系统]