GNSS 软件接收机算法验证平台设计与实现

摘要

GNSS receiver, for its real-time provision of height, latitude, longitudes and time, is now widely used in military and communication applications, and so it is of important application value to study the design and key techniques of GNSS software receiver. For test and verification of GNSS receiver algorithm, GNSS receiver verification platform is designed, and GNSS signal acquisition, tracking, measurement pre-processing and RAIM are emphatically studied. The experiment result indicates that this designed GNSS software algorithm verification platform, with high flexibility, good reconfiguration, and high position accuracy, could provide some reference for test and verification of various GNSS algorithms.%　　全球卫星导航系统(GNSS,Global Navigation Satellite System)由于能够实时为用户提供时间,经纬度和海拔高度等导航信息,在军事、通讯和测量等领域已得到广泛的应用,因此研究 GNSS软件接收机的设计与关键技术具有重要应用价值。从 GNSS 接收机算法验证与测试的需求出发,设计了一种基于软件实现的 GNSS 接收机算法验证平台,重点研究了与该验证平台实现相关的高动态卫星导航信号捕获方法、跟踪、测量值预处理方法和接收机自体完好性监控(RAIM,Receiver Autonomous Integrity Monitoring)方法等关键技术。实际结果表明实现的 GNSS 软件接收机算法验证平台具有算法验证灵活,可重构性好、定位精度高等特点,可以为各种 GNSS 接收机算法的测试与验证提供参考。