GPS/BD2双系统联合定位算法分析与测试
GPS/BD2 Dual-System Positioning Algorithm Analysis and Test
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摘要: 分析了基于KALMAN滤波器的双系统联合卫星定位算法,并利用自主研发的GPS/BD2双模接收机实现了单GPS、单BD2和GPS/BD2双系统联合定位。在杭州地区的实际信号对比测试结果显示,相对于单系统而言,GPS/BD2双系统联合能够显著提高接收机性能;长时间统计说明单BD2的定位精度也能达到与单GPS系统相当的水平。Abstract: This paper analyzed the dual satellite system positioning algorithm based on KALMAN filter and implemented it in a multi-system GNSS receiver.Then a static scenario positioning test in Hangzhou City has been carried out.The GPS/BD2 dual system mode obviously has better performance than the single system mode.Test result also revealed that the positioning precision of BD2 was comparable with GPS.
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