| Initial alignment is a key technique of Strap-down Inertial Navigation System(SINS), which to a large extent come to a decision of the system's performance accuracy and quick reaction ability. The aim at alignment accuracy and time, and the complicated environment made the air-launched weapon transfer alignment on moving base difficulty. Therefore transfer alignment on moving base is becoming a key technology of the air-launched weapon, and lots of scholars pay extensive concern to it. The main contents of the thesis include:Firstly, designed of the aircraft's trajectory generator, introduced the coordinate system definition and transformation matrix of coordinates. Established the mathematical model of SINS solution, procedures for the scheduling and gives the INS solution flowchart.Secondly, compared and analysised of transfer alignment on moving base,"Velocity and attitude"matching method can effectively conduct rapid transfer alignment. Derivation the kinematic equation between main and sub INS, and given the lever-arm effect compensation method. Established main and son INS error propagation equation and"velocity and attitude"matching method observation equation. Designed Kalman Filter and programmed MatLab simulation of moving base transfer alignment. Finally mathematical simulation, the results quickly and accurately estimate attitude inaccurate angle, velocity error and the installation angle between the son and main INS. Verification of"velocity and attitude"matching algorithm for rapid effectiveness.Thirdly, introduced digital signal processor technology and equipments of the simulation experiment, structured DSP simulation platform. Programmed in-motion transfer alignment C algorithm procedure, including data acquisition module, data solution module, SINS solution module and Kalman filter module, and gives the simulation program flowchart. Finally a transfer alignment of static experiment is made to test the transfer alignment algorithm on moving base.
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