电讯技术2025，Vol.65Issue(5)：749-755,7.DOI:10.20079/j.issn.1001-893x.241220001
基于PCM-FM信号的海上动平台多站时差定位技术
Multi-station Time Difference of Arrival Location Based on PCM-FM Signal for Maritime Mobile Platform
摘要
Abstract
To address the requirements of rapid search and precise measurement of landing points for various aircrafts in the maritime test range,a multi-station time difference of arrival(TDOA)location method based on pulse-code modulation frequency-modulation(PCM-FM)signal for maritime mobile platform is proposed.The architecture of multi-station time difference location system on maritime mobile platforms is constructed.Through carrier-smoothed pseudo-range technology combined with cascaded ring for multipath suppression,high-precision station-to-station time synchronization is achieved in maritime mobile platform environment.Blind equalization technology based on the constant modulus algorithm is employed to effectively address inter-symbol interference of telemetry signal in maritime multipath environment.Telemetry frame multi-symbol smooth method is utilized to minimize TDOA measurement jitter error.Finally,the Gauss-Newton iterative least squares method is proposed for real-time high-precision TDOA location.The simulation and flight test results show that the location accuracy is better than 100 m for maritime mobile platform,and can satisfy the target location requirement of the maritime test range.The proposed method can provide engineering reference and design basis for the construction of high-precision measurement system for target recovery and equiment identification in future maritime test range.关键词
海上动平台/海上靶场/PCM-FM信号/时差定位Key words
maritime mobile platform/maritime test range/PCM-FM signal/time difference of arrival location分类
信息技术与安全科学引用本文复制引用
杨峻巍,张旭,王炯琦,高梦瑶..基于PCM-FM信号的海上动平台多站时差定位技术[J].电讯技术,2025,65(5):749-755,7.基金项目
国家自然科学基金资助项目(62203458) （62203458）
