航向机动环境中基于陀螺/地磁信息融合的滚转角解算算法  

A Rolling Angle Algorithm Based on Gyro/Geomagnetism Information Fusion in Yaw Maneuvering Environment

作　　者：张晓明 檀杰 吕辰 于天鹏 邱江涛 ZHANG Xiaoming;TAN Jie;LYU Chen;YU Tianpeng;QIU Jiangtao(Electronic Testing Techniques of National Defense Science and Technology Laboratory,North University of China,Taiyuan 030051,China;Key Laboratory of Instrumentation Science&Dynamic Measurement of Ministry of Education,North University of China,Taiyuan 030051,China;Huaihai Industries Group Co.,Ltd.,Changzhi 046012,China)

机构地区：[1]中北大学电子测试技术国防科技重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [3]淮海工业集团有限公司,山西长治046012

出　　处：《弹道学报》2018年第1期1-5,18,共6页Journal of Ballistics

基　　金：国家自然科学基金项目(61004127)

摘　　要：针对传统的制导导弹利用地磁信息精确制导时偏航角变化引起滚转角解算出现较大误差的问题,提出了采用陀螺测量的弹体轴向角速率信息辅助三轴磁传感器信息进行弹体滚转角解算的融合算法,给出了制导导弹自由飞行段和制导飞行段滚转角的解算方法,在高速飞行仿真转台上进行了半物理仿真试验。试验结果表明:在偏航角+60°^-60°大范围偏航变化的情况下,该文所提出的滚转角融合算法的解算精度控制在5°以内,比传统单纯依靠地磁信息进行滚转角解算的精度提高近6倍,为后续制导导弹实现精确打击提供了必要的测试手段。The traditional guided missile was guided by using geomagnetic information,and therefore the change of yaw angle brings about large error in the calculation of roll angle.Aiming at this problem,a fusion algorithm for solving the roll angle of missile was proposed,and the axial angular-velocity information of gyro was used to assist the three-axis magnetic sensor information.The algorithm for solving the roll angle of missile in the free flight process and guidance flight process was presented.A semi-physical simulation test was carried out on the high-speed flight simulator.The experimental results show that the accuracy of the proposed roll fusion algorithm is less than 5°while yaw angle changing at the range of+60°^-60°.The calculation accuracy of the roll angle is nearly six times higher than that of the traditional geomagnetic information.The study provides the necessary test-means for achieving accurate strike of guided missile.

关 键 词：导弹 制导 滚转角 陀螺 地磁 

分 类 号：V249.3[航空宇航科学与技术—飞行器设计]