动基座对准条件下惯性制导精度评估方法  

Evaluation Method for Inertial Guidance Accuracy Under Moving Base Alignment

作　　者：刘文超[1] 徐松林[1] 郑小兵[1] 王宝和[1] LIU Wenchao;XU Songlin;ZHENG Xiaobing;WANG Baohe(No.91550 Troops of PLA,Dalian 116084)

机构地区：[1]中国人民解放军91550部队,大连116084

出　　处：《舰船电子工程》2025年第3期50-54,共5页Ship Electronic Engineering

基　　金：国家自然科学基金项目(编号:41506220)资助。

摘　　要：针对动基座对准条件下惯性制导精度评估的问题,综合考虑工具误差和初始误差研究了一种惯性制导精度分析评估方法。首先推导分析了初始误差和工具误差对惯导导航计算精度的影响规律,然后基于主动段终点导航参数误差与制导落点偏差的关系给出了制导精度评估方法,最后采用蒙特卡罗方法仿真评估了各单项误差和综合误差对应的惯性制导精度。研究结果表明:除与Z项视加速度有关的一次项工具误差和天向初始位置误差对制导精度影响较小外,其他初始误差与工具误差对制导精度均有不同程度的影响,可采取有效手段对初始误差和工具误差进行修正补偿以提高制导精度。To solve the issue of evaluating inertial guidance accuracy under moving base alignment conditions,a method for evaluating the accuracy of inertial guidance is studied,considering both tool error and initial error.Firstly,the influence of initial er-ror and tool error on the accuracy of inertial navigation calculation is derived and analyzed.Then,based on the relationship between the navigation parameter error of the active segment endpoint and the deviation of the guidance landing point,a guidance accuracy evaluation method is proposed.Finally,Monte-Carlo simulation is used to evaluate the inertial guidance accuracy corresponding to each individual error and comprehensive error.The research results indicate that,except for the primary tool error and initial posi-tion error related to the Z-term visual acceleration,which have a relatively small impact on guidance accuracy,other initial errors and tool errors have varying degrees of impact on guidance accuracy.Effective measures can be taken to correct and compensate for initial errors and tool errors to improve guidance accuracy.

关 键 词：惯性制导 初始误差 工具误差 制导精度 蒙特卡罗仿真 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]