Online calibration technique for LDV in SINS/LDV integrated navigation systems

Qi Wang; Chunfeng Gao; Guo Wei; Xingwu Long

doi:10.1117/12.2266141

Abstract

There are the scale factor error of LDV (laser Doppler velocimeter) and the misalignment between the SINS (Strapdown inertial navigation system) and the vehicle in a SINS/LDV integrated navigation system. In this paper, the effects of these errors on the attitude, velocity and position of dead reckoning are derived, and a new online calibration method aiming to calibrate the scale factor of LDV and the misalignment between the SINS and the vehicle for the integrated system is put forward. This method, which is utilize the velocity and position of the Global Position System (GPS) as references, use the velocity error and position error of dead reckoning to estimate these errors. Through simulation and experiment, the validity and feasibility of the method are verified. The results show that the scale factor and the misalignment can be calibrated with satisfying accuracy, and the related research can provide technical support for high precision navigation of SINS/LDV integrated navigation systems.

Citation Download Citation

Qi Wang, Qi Wang, Chunfeng Gao, Chunfeng Gao, Guo Wei, Guo Wei, Xingwu Long, Xingwu Long, } "Online calibration technique for LDV in SINS/LDV integrated navigation systems", Proc. SPIE 10184, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement Applications XVI, 1018415 (5 May 2017); doi: 10.1117/12.2266141; https://doi.org/10.1117/12.2266141

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