基于合作目标的动态舰载平台综合系统误差估计  

Comprehensive System Error Estimation Algorithm Based on Cooperative Target for Mobile Ship-Born Platform

作　　者：陈林元[1] 何佳洲[2] 罗双喜[2] 安瑾[2] 

机构地区：[1]中国电子科技集团第二十九研究所,成都610036 [2]江苏自动化研究所,江苏连云港222006

出　　处：《电光与控制》2013年第11期70-77,83,共9页Electronics Optics & Control

基　　金：国家安全重大基础研究项目(613101)

摘　　要：动平台传感器配准中综合系统误差估计是误差估计领域中的一个难题。针对舰艇动平台环境下的综合系统误差估计问题,利用合作目标提供的高精度GPS导航信息,提出了两种误差估计方法。方法 1基于等效偏差模型,通过建立综合系统误差观测模型,将等效偏差中互相耦合的误差分量解耦,利用近似的等效偏差值估计综合系统误差各误差分量,克服了等效偏差模型的不足;方法 2通过分析经误差传递后综合系统误差分量对舰艇地理坐标系下目标定位精度的影响,对影响函数进行线性化处理,从而建立综合系统误差观测方程,完成综合系统误差估计。仿真验证在两种情形下进行,仿真结果表明两种方法估计性能互有优劣,但方法 2总体表现好于方法 1。利用两种方法估计出来的结果进行误差修正,修正后的航迹精度与修正前相比均有了大幅提高,能够满足舰艇平台实际作战需要。Comprehensive system error estimation on mobile platform sensor registration is a difficult problem.In order to estimate the comprehensive system error for the mobile platform of shipsthis paper presents two methods using the highprecision GPS information obtained through cooperative target.In the first methodan observation model was built up to decouple error component in equivalent error model based on itand the approximate equivalent value was used to estimate each component of comprehensive system error.The first method can overcome the shortage of equivalent error model.In the second methodthrough analyzing the effect of error component on the location precision and linearizing the influence functionthe observation function was established and estimation of comprehensive system error was implemented.Simulation is made for two situationsand the simulation results demonstrate that each method has its advantages and disadvantages.On the wholethe performance of the second method is better.The position precision is improved greatly after error correction using the estimation results of these methods.

关 键 词：多传感器组网 信息融合 综合系统误差估计 动平台 等效偏差模型 合作目标 

分 类 号：V271.492[航空宇航科学与技术—飞行器设计] TN911.7[电子电信—通信与信息系统]