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Method of multiple satellite measurement failure detection and isolation for GNSS

机译:GNSS的多卫星测量故障检测与隔离方法

摘要

Methods for reducing the resources needed to detect and identify faulty pseudorange measurements in a GNSS receiver are described. In a Receiver Autonomous Integrity Monitoring (RAIM) method, a position solution is calculated using a weighted least squares method on measurements from satellites of one or more GNSS constellations. A test statistic is calculated from residuals and a threshold is calculated based on a probability function. If the test statistic is greater than or equal to the threshold, a subset is selected from the set of pseudorange measurements using a metric indicative of possible measurement error. A measurement is selected from the subset using a metric indicative of signal strength or some other metric and discarded from the set of pseudorange measurements. If the number of measurements remaining in the set of pseudorange measurements is greater than five, the method loops back to the step of calculating a position solution.
机译:描述了减少在GNSS接收机中检测和识别错误的伪距测量所需的资源的方法。在接收机自主完整性监控(RAIM)方法中,使用加权最小二乘法对来自一个或多个GNSS星座图的卫星的测量结果计算位置解。根据残差计算出测试统计量,并基于概率函数计算出阈值。如果测试统计量大于或等于阈值,则使用指示可能的测量误差的度量从伪距测量集合中选择一个子集。使用指示信号强度的度量或某些其他度量从子集中选择一个度量,并将其从伪距测量集合中丢弃。如果该组伪距测量结果中剩余的测量结果数目大于五个,则该方法循环回到计算位置解的步骤。

著录项

  • 公开/公告号US10684375B2

    专利类型

  • 公开/公告日2020-06-16

    原文格式PDF

  • 申请/专利权人 SAMSUNG ELECTRONICS CO. LTD.;

    申请/专利号US201514821323

  • 发明设计人 MAKARAND PHATAK;JONG-KI LEE;

    申请日2015-08-07

  • 分类号G01S19/20;

  • 国家 US

  • 入库时间 2022-08-21 11:31:38

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