| 观测量非等权模型RAIM可用性算法研究 |
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| 引用本文： | 张辉,郝金明.观测量非等权模型RAIM可用性算法研究[J].测绘与空间地理信息,2015(3):193-195. |
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| 作者姓名： | 张辉 郝金明 |
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| 作者单位： | 信息工程大学导航与空天目标工程学院,河南郑州,450052 |
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| 摘 要： | 针对基于最小二乘残差估计的接收机自主完好性监测(RAIM)算法,结合伪距单点定位多采用观测量非等权模型,提出一种观测量非等权模型RAIM可用性算法,对实际计算具有借鉴意义。通过实测数据,分析了等权模型和非等权模型RAIM可用性算法对卫星几何分布的估计情况,验证了观测量非等权模型RAIM可用性算法的可行性。
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| 关 键 词： | RAIM 可用性 非等权模型 等权模型 水平定位保护级 |
Research on RAIM Availability Algorithm with Measurement Unequal Weight Model |
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| ZHANG Hui,HAO Jin-ming.Research on RAIM Availability Algorithm with Measurement Unequal Weight Model[J].Geomatics & Spatial Information Technology,2015(3):193-195. |
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| Authors: | ZHANG Hui HAO Jin-ming |
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| Institution: | ZHANG Hui;HAO Jin-ming;College of Navigation and Aerospace Engineering,Information Engineering University; |
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| Abstract: | Concerning receiver auto integrity monitoring( RAIM) algorithm based on the least squares, due to pseudo range point posi-tioning generally adopting measurement unequal weight model, a RAIM availability algorithm with measurement unequal weight model is developed, which is meaningful for practical computation.With the measured data, analyzing satellites geometrical distribution eval-uated by equal weight model and unequal weight model, the results demonstrate the feasibility of RAIM availability algorithm with measurement unequal weight model. |
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| Keywords: | RAIM availability unequal weight model equal weight model horizontal protection level |
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