Performance Analysis and Architectures for a MEMS-SINS/GPS Ultratight Integration System. (11th March 2021)

• Record Type: Journal Article
• Authors: Ren, Jianxin; Zi, Junlin; Yang, Hao; Li, Jin
• Other Names: Zhong Yongmin Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2021(2021)
• Publication Date: 2021-03-11
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2021/8892205
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : In order to analyze the performance of strapdown inertial navigation system/global position system (SINS/GPS) ultratight integration system with low-precision microelectromechanical system (MEMS) under challenging environments, a new MEMS-SINS/GPS ultratight integration scheme is designed. The time-space difference carrier phase velocity (TSDCP-v) is used to assist the carrier tracking loop, the measurement model including nonlinear term is established, and the corresponding filtering algorithm is designed. A simulation and verification platform is established to analyze and verify the performance of the MEMS-SINS/GPS ultratight integration system designed in this paper. Compared with the SINS/GPS tight integration navigation system, the MEMS-SINS/GPS ultratight integration system has higher dynamic performance, anti-interference capability, and navigation performance. At the same time, the MEMS-SINS/GPS ultratight integration system improves the carrier tracking performance of SINS-assisted GPS ultratight integration system when using low-precision MEMS and in high dynamics, strong interference environments.