摘要
提出了一种基于垂直线阵的系统,给出了定位模型,并简要介绍了其定位原理。利用由时延间接引入的距离、高低角和观测得到的方位角信息,建立了三维坐标系下的状态方程和观测方程。仿真分析了基线长度和时延精度对定位精度的影响。利用非线性系统的可观测性定理分析了该系统,得出了系统可观测的条件。
A system based on vertical linear array is brought forward. The localization model is presented,and the localization principle of vertical linear array is discussed. With range, elevation angle induced from time-delay and the measurement of azimuth angle, three dimensional equation of state and equation of measurement have been established. The localization precise according to length of baseline and precise of time-delay is simulated and analyzed. According to the observability principle of nonlinear system,the observability qualifications of the system are given.
出处
《舰船科学技术》
2009年第6期91-94,共4页
Ship Science and Technology
基金
国防预研项目资助(513040303)
海军工程大学自然科学基金资助项目(HGDJJ07025)
关键词
目标定位
垂直线阵
可观测性
精度分析
target localization
vertical linear array
observability
precise analysis
