信号级GNSS/SINS超紧组合导航仿真平台设计

doi:10.12305/j.issn.1001-506X.2023.01.22

Abstract

Abstract:

The ultra-tight integration is the deepest information fusion mode in the integrations of global navigation satellite system (GNSS) and strapdown inertial navigation system (SINS). The acquisition and tracking loops in a GNSS receiver must be redesigned to obtain the SINS aiding signal, so the industrial implementation of the ultra-tight integration is very difficult.The difficulties of studying the ultra-tight integration in the signal level lie in sampling the homologous and synchronous GNSS and SINS signals and opening the GNSS receiver's acquisition and tracking loops. Therefore, this paper constructs an ultra-tightly integrated GNSS/SINS simulation platform in the signal level to overcome the difficulties above. The platform is composed of a vehicle trajectory generator, a GNSS intermediate frequency signal generator, an inertial navigation solver, a GNSS software receiver, and an integrated navigation filter, etc. The platform can not only verify the superiority of the ultra-tight integration in high dynamics, but also lay a solid foundation for its applications.

Key words: satellite navigation, inertial navigation, ultra-tight integration, high dynamics

CLC Number:

V249.3

Wei GAO, Yafeng LI, Kedong WANG. Design of ultra-tightly integrated GNSS/SINS simulation platform in signal level[J]. Systems Engineering and Electronics, 2023, 45(1): 184-192.

Figures/Tables 16

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Design of ultra-tightly integrated GNSS/SINS simulation platform in signal level

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