Abstract
The Chinese BeiDou navigation satellite system (BDS) aims to provide global positioning service by 2020. The combined use of BDS and Global Positioning System (GPS) is proposed to provide navigation service with more stringent requirements. Actual satellite data, signals and measurements were collected for more than one month to analyze the positioning service qualities from both BDS and GPS. In addition to the conversions of coordinate and timing system, five data quality analysis (DQA) methods, three signal quality analysis (SQA) methods, and four measurement quality analysis (MQA) methods are proposed in this paper to improve the integrated positioning performance of BDS and GPS. As shown in the experiment results, issues related to BDS and GPS are resolved by the above proposed quality analysis methods. Thus, the anomalies in satellite data, signals and measurements can be detected by following the suggested resolutions to enhance the positioning performance of the combined use of BDS and GPS in the Asia Pacific region.
Highlights
An increasing number of countries have focused on the development of their own GlobalNavigation Satellite System (GNSS), which provides convenient real-time positioning, velocity, and time services [1]
MEO, inclined geosynchronous orbit (IGSO), and GEO satellites, a BeiDou Navigation Satellite System (BDS) receiver has to consider the inter-satellite-type biases between different constellations [16]. Besides these inter-system and inter-satellite-type biases, it is of practical interest to evaluate the differences between BDS and Global Positioning System (GPS) based on actual satellite data, signals and measurements
Results ofHowever, SQA1 to even lowerstrengths than those due than to the transmission distances being longer for the remove irregular satellites
Summary
An increasing number of countries have focused on the development of their own Global. MEO, IGSO, and GEO satellites, a BDS receiver has to consider the inter-satellite-type biases between different constellations [16] Besides these inter-system and inter-satellite-type biases, it is of practical interest to evaluate the differences between BDS and GPS based on actual satellite data, signals and measurements. For a complete survey of the performance of BDS and GPS, this research divides the analysis methods into data quality analysis (DQA), signal quality analysis (SQA), and measurement quality analysis (MQA). These analyses correspond to satellite broadcasts of satellite location information, signal arrival at the receiver, receiver calculation of ranging measurements based on the received signal and receiver’s. GPS and BDS SIS data were analyzed using these three analysis methods
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