Asynchronous fusion method of guidance information for strapdown missile swarm

This paper is concerned with an asynchronous fusion algorithm of guidance information for strapdown missile swarm. Firstly, the strapdown detection model was built by taking the body line-of-sight (BLOS) angle of the strapdown seeker into consideration; Secondly, the filtering equation and the filtering algorithm process were established; Thirdly, the asynchronous fusion algorithm based on error covariance trace minimization was derived. Compared with the non-real-time algorithm, the proposed real-time asynchronous fusion algorithm has higher estimation accuracy, which is of great significance to the design of missile guidance law.