西华大学学报（自然科学版）2024，Vol.43Issue(1)：28-35,8.DOI:10.12198/j.issn.1673-159X.5163
多点定位接收机的设计与实现
Design and Implement of Multipoint Positioning Receiver
摘要
Abstract
In order to solve the time synchronization problem of multiple remote stations in civil avi-ation multi-point positioning systems and extract the arrival time information of the automatic dependent surveillance broadcast(ADS-B)signal,this paper designs a high-precision and low-cost multi-point posi-tioning receiver.Due to the fact that the accuracy of time difference of arrival(TDOA)is mainly determ-ined by time synchronization and header detection accuracy,a high-precision distributed timing method based on tamed clocks and a header detection algorithm with dynamic threshold values is proposed to im-prove the accuracy of TDOA and thus enhance the accuracy of the receiver.Then,the Taylor series expan-sion method was used to verify that the TDOA accuracy of the receiver met the expected requirements.Fi-nally,the hardware and software implementation of the receiver were completed.关键词
多点定位/到达时间差/时间同步/广播式自动相关监视系统Key words
multilateration/TDOA/time synchronization/ADS-B分类
航空航天引用本文复制引用
汤新民,李帅,周杨..多点定位接收机的设计与实现[J].西华大学学报（自然科学版）,2024,43(1):28-35,8.基金项目
国家自然科学基金(61773202,52072174) （61773202,52072174）
国家重点研发计划(2021YFB1600500). （2021YFB1600500）
