现代导航
現代導航
현대도항
MODERN NAVIGATION
2014年
6期
397-403
,共7页
GPS数字中频信号%高动态%MATLAB仿真%GPS软件接收机
GPS數字中頻信號%高動態%MATLAB倣真%GPS軟件接收機
GPS수자중빈신호%고동태%MATLAB방진%GPS연건접수궤
GPS IF Digital Signals%High Dynamic%MATLAB Simulation%GPS Software Receiver
在研究在高动态条件下GPS软件接收机信号处理算法时,需要对高动态GPS数字中频信号进行仿真。本文在分析 GPS 数字中频信号数学模型的基础上,针对高动态载体接收的GPS信号深入研究,提出了一种高动态信号仿真方法,详细阐述了信号仿真的步骤,在MATLAB上实现了对GPS数字中频信号的仿真,最后在GPS软件接收机上验证了中频仿真信号。检验结果表明,本文提出的仿真方法可以为研究高动态GPS软件接收机算法提供可靠的信号源。
在研究在高動態條件下GPS軟件接收機信號處理算法時,需要對高動態GPS數字中頻信號進行倣真。本文在分析 GPS 數字中頻信號數學模型的基礎上,針對高動態載體接收的GPS信號深入研究,提齣瞭一種高動態信號倣真方法,詳細闡述瞭信號倣真的步驟,在MATLAB上實現瞭對GPS數字中頻信號的倣真,最後在GPS軟件接收機上驗證瞭中頻倣真信號。檢驗結果錶明,本文提齣的倣真方法可以為研究高動態GPS軟件接收機算法提供可靠的信號源。
재연구재고동태조건하GPS연건접수궤신호처리산법시,수요대고동태GPS수자중빈신호진행방진。본문재분석 GPS 수자중빈신호수학모형적기출상,침대고동태재체접수적GPS신호심입연구,제출료일충고동태신호방진방법,상세천술료신호방진적보취,재MATLAB상실현료대GPS수자중빈신호적방진,최후재GPS연건접수궤상험증료중빈방진신호。검험결과표명,본문제출적방진방법가이위연구고동태GPS연건접수궤산법제공가고적신호원。
In order to study the high dynamic signal processing algorithm of the GPS software receiver, it is necessary to simulate the digital intermediate frequency (IF) GPS signals. Based on the analysis of mathematical model of the GPS signals, this paper provide a method to simulate the high dynamic GPS IF signals, clarify the procedure of the method , and use MATLAB to simulate the signals. Finally, The GPS software receiver is adopted to validate the signals and the results indicate that this method is able to provide reliable signals for the study of the high dynamic GPS signal processing algorithm.