| 观测不确定情形下连续系统的采样估计 |
| |
| 引用本文： | 霍沛军,郭治,王子栋. 观测不确定情形下连续系统的采样估计[J]. 上海交通大学学报, 2000, 34(5): 619-622 |
| |
| 作者姓名： | 霍沛军 郭治 王子栋 |
| |
| 作者单位： | 1. 上海交通大学,企业管理系,上海,200030
2. 南京理工大学,自动化系,南京,210094 |
| |
| 基金项目： | 国家自然科学基金资助项目! ( 695 740 14) |
| |
| 摘 要： | 在机动目标跟踪等实际问题中 ,如果被跟踪的目标失踪 ,则用于状态估计的观测信号就具有不确定性 .在充分考虑系统内采样特性的基础上 ,讨论了观测不确定情形下连续系统的采样估计问题 ,旨在设计离散滤波器 ,使采样估计协方差配置至指定值 .文中利用一修正的离散 Lyapunov方程 ,给出了期望滤波增益的存在条件及解析表达式 ,并以数值例子说明了本文设计方法的直接性和有效性
|
| 关 键 词： | 连续系统 采样估计 内采样特性 观测不确定 机动目标跟踪 |
Sampled-Data Estimation for Continuous-Time Systems with Uncertain Observations |
| |
| HUO Pei-jun,GUO Zhi,WANG Zi-dong. Sampled-Data Estimation for Continuous-Time Systems with Uncertain Observations[J]. Journal of Shanghai Jiaotong University, 2000, 34(5): 619-622 |
| |
| Authors: | HUO Pei-jun GUO Zhi WANG Zi-dong |
| |
| Abstract: | In applications such as target tracking,the observation signal may contain uncertainties if the targetis missing.This paperstudied the sampled- data estimation problem for continuous systems with un- certain observations by taking complete accountof the intersample behaviour.The purpose of this investi- gation is to design discrete filters that the sampled- data estimation covariance achieves a specified value. The existence conditions and the analytical expression of the desired filters were given based on a modified discrete Lyapunov equation.A numerical example was provided to demonstrate the directness and effec- tiveness of the design method presented in this paper. |
| |
| Keywords: | continuous- time systems sampled- data estimation intersample behaviour uncertain observa- tion target tracking |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
