摘要
在机载单站无源定位系统中,传统的只测角单站无源定位方法的定位精度低,定位时间长,而利用相位差变化率作为观测信息的无源定位能很好地克服上述缺点。文中研究了MVEKF算法的滤波原理过程及其在机载单站无源定位中的应用,提出了相位差变化率定位方法的原理。仿真结果表明,MVEKF算法应用在机载单站无源定位中,能够精确定位,快速收敛。
Airborne single passive location has the characteristics of good mobility and wide range. The traditional passive location, which measures the angle only, has characteristics of low accuracy and long locating time. Taking phase difference variation rate as passive location of observation information can overcome the shortcomings. The air- borne singlc passive location and tracking based on MVEKF are studied. The filtering principle of MVEKF algorithm are introduced. The principle of phase difference variation rate localization method is given out. Simulation results show that MVEKF algorithm has accurate positioning and fast convergence in airborne single passive location.
出处
《物联网技术》
2011年第1期60-63,共4页
Internet of things technologies
关键词
单站无源定位
MVEKF
相位差变化率
电子侦测
single passive location station, MVEKF
phase difference variation rate
electronic surveillance
