Abstract
A similar elevation-dependent pseudoranging anomaly was appeared on BeiDou and GPS navigation system. Furthermore, anomalies seem to be present on signals from GPS SVNs 41, 43, 44, 49, 55, 58, 59, 60, and 61. This effect is caused by signal reflections coming from the impedance mismatch of a special auxiliary port on SVN 49. It is suspected that other satellites which show a pseudoranging anomaly have the same reason. In view of this situation, a high-precision test method is present to evaluate the inner multipath effect on navigation satellite in this article. The test method builds the relationship between the satellite antenna array’s inner-outer ring delay difference (which caused by the multipath effect) and the beam marginal-subastral point pseudorange measurement divergence. The method is applied to the BeiDou satellite test, and the test result is given.
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Huangfu, S., Liu, B., Nie, X., Xu, H., Liu, T. (2018). Research on High-Precision Test Method of the Navigation Satellite Inner Multipath Effect. In: Sun, J., Yang, C., Guo, S. (eds) China Satellite Navigation Conference (CSNC) 2018 Proceedings. CSNC 2018. Lecture Notes in Electrical Engineering, vol 499. Springer, Singapore. https://doi.org/10.1007/978-981-13-0029-5_7
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DOI: https://doi.org/10.1007/978-981-13-0029-5_7
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