| 正反向Kalman滤波用于动态精密单点定位参数估计 |
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| 引用本文： | 阮仁桂,郝金明,刘勇.正反向Kalman滤波用于动态精密单点定位参数估计[J].武汉大学学报(信息科学版),2010(3). |
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| 作者姓名： | 阮仁桂 郝金明 刘勇 |
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| 作者单位： | 信息工程大学测绘学院;261363部队; |
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| 摘 要： | 提出了采用正反向Kalman滤波进行动态精密单点定位事后处理参数估计的方法,连续实施两次方向相反的Kalman滤波,第一次滤波结果作为第二次滤波的初始信息,第二次滤波结果作为最终结果。该方法克服了传统Kalman滤波方法在模糊度参数收敛之前定位精度不高的缺陷,同时还具有原理简单、易于实现的优点。实测数据解算实验表明,该方法正确有效,可以获得理想的动态精密单点定位结果。
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| 关 键 词： | GPS Kalman滤波 正反向Kalman滤波 动态精密单点定位 |
Using a Forward-Backward Kalman Filter to Estimate Parameters for Kinematic Precise Point Positioning |
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| RUAN Rengui HAO Jinming LIU Yong.Using a Forward-Backward Kalman Filter to Estimate Parameters for Kinematic Precise Point Positioning[J].Geomatics and Information Science of Wuhan University,2010(3). |
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| Authors: | RUAN Rengui HAO Jinming LIU Yong |
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| Institution: | RUAN Rengui1 HAO Jinming1 LIU Yong2(1 Institute of Surveying , Mapping,Information Engineering University,66 Middle Longhai Road,Zhengzhou 450052,China)(2 61363 Troops,Xi\'an 710054,China) |
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| Abstract: | There are several methods usually used for parameters estimate in precise point positioning including Kalman filters,recursive least square and square root information filtering and smoothing(SRIF&SRIS).Using Kalman filter to estimate parameters for kinematic precise point positioning(PPP)post-processing has a fatal shortcoming as the positioning precision is bad before ambiguity estimates are converged.The approach of a forward-backward Kalman filter is proposed to handle this problem,which is to sequentia... |
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| Keywords: | GPS Kalman filter forward-backward Kalman filter kinematic precise point positioning |
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