关键词: 兵器科学与技术, 贝叶斯理论, 粒子滤波, 权值, 似然函数

Abstract:

To revise the interference statistics of an integrated navigation system, a particle filtering algorithm was adopted to discriminate the systematic error of the statistics. And the modified particle filtering algorithm changes the weights of particles to suppress the interference when a single channel subjects to interference and tends to divergence. The simulation results show that the modified particle filtering algorithm is able to keep the system even for the divergence of a superior function by reducing the error efficiently and increasing the accuracy.

Key words: ordnance science and technology, Bayes theory, particle filter, weight value, likelihood function