Abstract
Proceeding from actual needs of AINS initial alignment technology, this paper is specific to rigidity carrier ship, and it deduces the model equations of Airborne Inertial Navigation System's velocity and acceleration (ecificforce) with the effect of arm-lever vector. It employs the method that establishes large initial misalignment angle transfer alignment model of AINS, which is other than traditional velocity and attitude matching algorithm. Basing on nonlinear deterministic particle filtering, it simulates the performance of the model with experimental data, and comparatively studies inhering lever-arm vector error's influence on AINS misalignment attitude angle estimation error and its alignment accuracy. With different initial lever-arm vectors it researches its effects on misalignment attitude angle's estimation error and the accuracy of transfer alignment. The simulation results verify the model's validity and its superior alignment accuracy in transfer alignment of AINS. It is of great theory and application value in design of AINS.
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