中低纬度下惯导极区性能模拟测试方法

doi:10.12305/j.issn.1001-506X.2021.09.31

Abstract

Abstract:

Aiming at the problem that it is difficult to carry out the polar performance test of inertial navigation system in the field, a simulation test method is studied, and an inertial navigation simulation test scheme with integrated navigation system as the measurement benchmark is given based on the arrangement of transverse coordinate system. Firstly, the necessity of simulation test technology research is analyzed, and then according to the principle of minimum trajectory deformation, the polar simulation test conversion formula based on transverse coordinate system is deduced in detail. Then, according to the situation that different benchmarks are used in the test, the corresponding inertial measurement unit (IMU) conversion algorithm is proposed, and a specific test scheme based on inertial navigation system/global navigation satellite system (INS/GNSS) is proposed, Finally, the simulation experiment is completed to verify the correctness of the simulation test theory. The results show that when the reference error is ignored, the error of test navigation parameters is equivalent to that of inertial navigation field transverse arrangement solution. The feasibility of the proposed method to replace the polar field test for accuracy performance evaluation is preliminarily verified, which lays a theoretical foundation for the follow-up polar simulation test and evaluation research.

Key words: inertial navigation, polar navigation, transverse coordinate system, simulation test, integrated navigation

CLC Number:

U666.12

Zhe WEN, Hongwei BIAN, Heng MA, Tao ZANG. Simulation test method of inertial navigation polar performance at middle and low latitudes[J]. Systems Engineering and Electronics, 2021, 43(9): 2620-2627.

Figures/Tables 13

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Simulation test method of inertial navigation polar performance at middle and low latitudes

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