CAJ | 학술논문

本文针对多系统多频点多模式接收机兼容数字处理技术,阐述了数字信号处理的基本原理,并就以往数字接收机的处理技术在灵活性和兼容性上的缺陷,重点研究了多系统多频点不同卫星信号的数字跟踪通道的复用技术,并对数字信号的跟踪处理技术(即信号捕获、扩频码跟踪、载波捕获及载波跟踪处理)进行了详细探讨,设计建立了由可设置的数字载波 NCO、码NCO、扩频码产生器及配置控制软件组成的可复用的数字跟踪处理通道,具备对多系统的卫星定位信号进行捕获、跟踪的兼容性和灵活性处理能力.
본문침대다계통다빈점다모식접수궤겸용수자처리기술,천술료수자신호처리적기본원리,병취이왕수자접수궤적처리기술재령활성화겸용성상적결함,중점연구료다계통다빈점불동위성신호적수자근종통도적복용기술,병대수자신호적근종처리기술(즉신호포획、확빈마근종、재파포획급재파근종처리)진행료상세탐토,설계건립료유가설치적수자재파 NCO、마NCO、확빈마산생기급배치공제연건조성적가복용적수자근종처리통도,구비대다계통적위성정위신호진행포획、근종적겸용성화령활성처리능력.
Aiming at the compatible digital processing technology of multi-system multi-frequency spot multi-mode receiver, this report explains the basic principle of digital signal processing. In order to improve the flexibility and compatibility in processing technology of digital receiver, the reuse technology of digital tracking channel are studied for different satellite signals at multiple frequency spots from multiple systems, and the tracking and processing technology including signal acquisition, PRN code tracking、carrier acquisition as well as carrier tracking and processing are also discussed in details. A reusable digital track processing channel which is made up of reconfigurable carrier NCO,code NCO, PRN code generator and configuration control software is designed to provide the compatible ability to acquire, track and process the satellite positioning signals from multiple systems.