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detection and correction as well as the determination of the ambiguity of the abnormal measurements in a global navigation satellite system receiver
detection and correction as well as the determination of the ambiguity of the abnormal measurements in a global navigation satellite system receiver
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机译:全球导航卫星系统接收机中的检测和纠正以及异常测量的不确定性确定
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摘要
A global navigation system includes a first navigation receiver located in a rover and a second navigation receiver located in a base station. Single differences of measurements of satellite signals received at the two receivers are calculated and compared to single differences derived from an observation model. Anomalous measurements are detected and removed prior to performing computations for determining the output position of the rover and resolving integer ambiguities. Detection criteria are based on the residuals between the calculated and the derived single differences. For resolving integer ambiguities, computations based on Cholesky information Kalman filters and Householder transformations are advantageously applied. Changes in the state of the satellite constellation from one epoch to another are included in the computations.
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