| 融合伪距和载波相位的DGPS/惯性组合导航 |
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| 引用本文： | 杨春钧,袁信,刘建业.融合伪距和载波相位的DGPS/惯性组合导航[J].中国惯性技术学报,1998(3). |
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| 作者姓名： | 杨春钧 袁信 刘建业 |
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| 作者单位： | 南京航空航天大学 |
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| 摘 要： | 本文利用卡尔曼滤波方法对码伪距测量和载波相位测量进行了最优融合，并得到了融合后的伪距测量误差标准差曲线，用融合后的伪距作为观测量和惯导系统进行组合，可以有效地提高导航精度，避免整周模糊度的确定。本文研究了这种组合导航系统，进行了仿真试验，仿真结果表明该组合系统的精度得到了很大的提高，定位精度在1m以内，是一种高精度的导航系统。
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| 关 键 词： | 融合 伪距 载波相位 仿真 卡尔曼滤波 |
Integrated Navigation System of Pseudorange Smoothed by Carrier Phase DGPS/INS |
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| Yang Chunjun, Yuan Xin, Liu Jianye.Integrated Navigation System of Pseudorange Smoothed by Carrier Phase DGPS/INS[J].Journal of Chinese Inertial Technology,1998(3). |
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| Authors: | Yang Chunjun Yuan Xin Liu Jianye |
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| Institution: | Yang Chunjun; Yuan Xin; Liu Jianye(Naming (Nniversity of Aeronautics and Astronautics |
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| Abstract: | The pseudorange measurement is smoothed optimumly by the carrier phase measurement with Kalman filter and the graph of standard error of thesmoothed pseudorange is presented in this paper. The precision of navigation system canbe improved by the integration of INS with the smoothed pseudorange measurement'The problem of the ambiguities decision are avoided. This integrated navigation systemis studied and the simulation are carried in the paper. The simulation results show thatthe method can obtain the improvement of the precision of navigation greatly. The position precision is no more than 1 m. So it is a kind of high precision navigation system. |
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| Keywords: | smooth pseudorange carrier phase simulation Kalman filter |
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