摘要
高精度伪距数据的实时生成是导航卫星信号模拟器开发需要解决的一项关键技术。在监测接收机测试中,信号模拟器生成伪距数据时必须采用高精度而复杂的卫星轨道和伪距误差项计算模型,但是复杂的计算模型严重影响了伪距数据生成的实时性。针对问题,提出了迭代计算与插值计算相结合的伪距生成方法,并采用方法对监测接收机和普通定位接收机用户进行了伪距数据的实时生成仿真和精度分析。结果表明方法能满足伪距数据生成的实时性和精度要求。
The generation of high accuracy real - time pseudo - range data is one of the key problems that need to be solved in the development of navigation satellite signal simulator. In the monitoring receiver test, high accuracy and complex satellite orbit and pseudo - range error models must be used to generate pseudo - range by signal simulator. But the real - time property of pseudo - range generation is badly affected by complex models. In view of this problem, a pseudo - range generation integrated method that combines iterative algorithm with interpolation method was presented, and real - time pseudo - range generate simulation as well as accuracy analysis of monitoring receiver and navigation receiver user were provided. The result indicates that this method can meet the real - time and accuracy requirements of pseudo - range generation.
出处
《计算机仿真》
CSCD
北大核心
2009年第7期77-80,共4页
Computer Simulation
基金
国家863计划资助项目(2007AA12Z307)
关键词
卫星导航
信号模拟器
伪距
监测接收机
实时仿真
Satellite navigation
Signal simulator
Pseudo-range
Monitoring receiver
Real-time simulation
