Algorithm and simulation of tansfer alignment for guidance bomb

Along with the appearance of precise guidance bomb, its correlative technologies are being developed with more recognition. As one kingd of air-launching weapons, before precise guidance bomb is launched, its inertial navigation system should be aligned at first. According to the characterristcs of this kind of weapon, the accurate and fast transfer alignment models were proposed based on the velocity/azimuth matching method. Meanwhile, the correlative simulation system was developed, and its structure and main functions were introduced. Some simulation analysis were given under the different conditions, e.g. different models, different motivations and so on. The simulation results demonstrate that alignment angles errors converge in 20 seconds within the precision of 10', during a given flight motion. The validity of this transfer alignment method was substantiated. At the same time, some conclusion was given for the application of this algorithm to the real system.