| With the continuous development of navigation technology,the requirements for navigation system accuracy and stability are getting higher and higher.Because the performance of a single navigation system has certain limitations,the integrated navigation system can give full play to the advantages of each system,so that the advantages of each navigation system complement each other,thus ensuring the accuracy of the entire system while improving the stability of the system,so the integrated navigation system has developed rapidly.The development of the BeiDou satellite navigation system has freed China from the shackles of GPS.The BeiDou/GPS/SINS integrated navigation system can combine the advantages of BeiDou,GPS and SINS,with higher accuracy and better stability.Based on embedded system,this paper design and realizes the BeiDou/GPS/SINS integrated navigation system.System design covers both hardware and software,The hardware is mainly about the construction and debugging of the navigation module and the development board.The main work of the software is to complete the construction of the Visual Studio 2005 development environment,use C# language to program the BeiDou/GPS/SINS system,and port the system to the development board.Through the combination of software and hardware,the information collection and processing of BeiDou/GPS/SINS system is realized on the hardware platform.For the test of the precision and reliability of the BeiDou/GPS/SINS integrated navigation system,this paper is verified by static experiment and dynamic experiment.In the two experiments,the longitude,latitude,altitude and speed of BeiDou/SINS integrated navigation,GPS/SINS integrated navigation and BeiDou/GPS/SINS integrated navigation were compared.Experimental results show:The performance of BeiDou/GPS/SINS integrated navigation is the best,and BeiDou/SINS integrated navigation take second place,and GPS/SINS integrated navigation is relatively poor. |
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