Research on GNSS/SINS Tightly Coupled Integrated Navigation System

Yao Wei Chang; Shuai Chen

doi:10.4028/www.scientific.net/AMR.1049-1050.1832

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1049-1050Research on GNSS/SINS Tightly Coupled Integrated...

Research on GNSS/SINS Tightly Coupled Integrated Navigation System

Abstract:

When a missile runs under the complex situation such as high dynamic flying, receiver signal being blocked and so on, the GNSS receiver sometimes gets less than four satellites. For the loosely coupled system, the navigation accuracy will decrease over time. In this paper ,tightly coupled integrated navigation system which is based on pseudo range and pseudo range rate dynamically adjusts the dimension of the system according to the number of visible satellites, in order to achieve seamlessly navigation; a multiple step optimum precision factor satellite selection algorithm is proposed, an error compensation method which is based on the state transition is designed and implemented. Experiments show that when the number of visible satellites changes, tightly coupled system can seamlessly switch, when more than four satellites are received, the multiple step optimum precision factor selection algorithm can provide a combination of high precision satellites, by applying the error compensation method to calibrating the system, high-precision navigation can be achieved.

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Periodical:

Advanced Materials Research (Volumes 1049-1050)

Pages:

1832-1835

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1049-1050.1832

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Online since:

October 2014

Authors:

Yao Wei Chang, Shuai Chen*

Keywords:

Error Compensation, High Dynamic, Satellite Selection Algorithm, Tightly Coupled

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* - Corresponding Author

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