摘要
针对现有阵列单通道系统对机动目标跟踪精度不高,实时性差等不足,提出了一种新的阵列单通道目标跟踪方法。该方法在利用接收机轮流采样建立频域阵列信号处理模型的基础上,通过对期望入射信号的估计,建立跟踪方程,然后引入可逆跳转马尔科夫链蒙特卡洛方法对粒子滤波算法进行改进,实现实时波达方向和信号源数目估计。仿真结果证明,此方法既可实现单通道的信号源数目和波达方向联合跟踪,又可实现波达方向估计与波束形成一体化,且跟踪精度较高。
The traditional moving target tracking with single channel array system has low performance. To address this problem, a new method of Direction of Arrival （DOA） tracking for single channel array is proposed. Based on the new array signal data model established by sequential sampiing, through the estimation of the expected ariginal signal, a tracking equation is built, then the particle filter is improved with Reversible Jump Markov Chain Monte Carlo （RJMCMC）, and finally real time Direction of Arrival and source number is estimated on time. Theoretics analysis and simulation results show that the method presented in this paper can realize joint source number and DOA tracking, and has high tracking precision. Besides, the joint DOA tracking and beamforming could be realized with this method.
出处
《电子信息对抗技术》
2013年第2期5-9,29,共6页
Electronic Information Warfare Technology
关键词
单通道轮采
可逆跳转马尔科夫链蒙特卡洛方法
粒子滤波
目标跟踪
信号源数目
single channel sequentially sampling
reversible jump Markov chain Monte Carlo （ RJM-CMC）
particle filter
target tracing
source number
