Application of particle swarm optimization algorithm in transfer alignment

A PSO(particle swarm optimization) algorithm-based transfer alignment method is presented.The transfer alignment requirement and the relation between the master inertial sensors and slave inertial sensors are analyzed.The transfer alignment problem is treated as a parameter optimization problem,and the PSO algorithm-based alignment mathematics model is given.The transfer alignment optimization function is defined,and the PSO algorithm is introduced.The PSO algorithm is employed to search the global minima,then the misalignment can be estimated.The algorithm is validated by simulation.The heading error can be 0.1° under the simulation condition that the gyro's accuracy is 0.1(°)/h.The algorithm is greatly affected by the maneuver as other alignment methods.Attitude maneuver is usually needed to increase the gyro's signal-to-noise rate.