摘要
为修正组合导航系统受到干扰的数据,使用粒子滤波算法判别数据是否符合系统误差要求;采用改进的粒子滤波算法,当组合导航系统单一通道受到干扰而发散时,通过改变受干扰通道粒子在系统中的权值来抑制干扰。仿真结果表明,改进的粒子滤波算法在组合导航系统单一通道发散的条件下能够有效地降低误差、提高精度,从而使系统仍能保持较好的工作状态。
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.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2013年第1期72-75,共4页
Acta Armamentarii
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
ordnance science and technology
Bayes theory
particle filter
weight value
likelihood function
