一种基于地理信息的瞄准线动态跟踪技术  

Dynamic Tracking of Line of Sight Based on Geographical Information

作　　者：王清海 沈晓洋 冉承平[2] 何磊[2] WANG Qinghai;SHEN Xiaoyang;RAN Chengping;HE Lei(Wuhan Military Representative Bureau of Naval Equipment Department in Luoyang Luoyang 471000,China;Luoyang Institute of Electro-Optical Equipment AVIC Luoyang 471000,China)

机构地区：[1]海装武汉局驻洛阳地区军事代表室,河南洛阳471000 [2]中国航空工业集团公司洛阳电光设备研究所,河南洛阳471000

出　　处：《电光与控制》2021年第6期100-104,共5页Electronics Optics & Control

摘　　要：光电吊舱陀螺稳定平台在惯性稳定的状态下只能补偿飞机的姿态变化,无法补偿飞机的线性运动影响。飞行过程中,光电吊舱瞄准线随着飞机的运动快速移动,这对操作员快速捕获瞄准目标造成了较大的困难。如果希望对某固定区域进行较长时间的观察,需要操作员不断地操纵吊舱使瞄准线始终指向目标,这就增加了操作员的工作负担和操作难度。介绍了一种基于惯性信息的动态跟踪算法,将飞机的线性运动速度投影到平台坐标系下,计算出平台的动态补偿角速度并进行实时补偿,驱动光电吊舱运动保证瞄准线始终指向地面固定场景。实验结果表明,基于惯性信息的动态补偿技术能快速实时补偿飞机的线性运动,保证光电吊舱成像场景稳定,极大地方便了操作员的操作,减轻了其负担。The gyro-stabilized platform of the optoelectronic pod can only compensate for the attitude change of an aircraft in inertial stabilization statebut cannot compensate for the linear motion of the aircraft.In the course of flightthe Line of Sight(LOS)of the optoelectronic pod moves fast along with the linear motion of the aircraft.This brings difficulty for the operator to capture and aim the target promptly.If the operator wants to keep an immovable region under surveillance for a long timehe has to operate the pod constantly to keep the LOS pointing at the target.This will increase the burden and operation complexity of the operator.In this papera dynamic tracking algorithm based on INS information is introduced.The velocity of linear motion of the aircraft is projected onto the coordinate system of the platform.The dynamically-compensated angular velocity of the platform is calculated and is then compensated for in real-timewhich drives the pod to move and keeps the LOS pointing at the immovable ground scene.The experimental results indicate that the dynamic compensation technology based on INS information of the aircraft can compensate for the linear motion of the aircraft in real time and keep the imaging scene of the optoelectronic pod steadywhich is convenient for the operator's manipulation and can alleviate the burden of the operator.

关 键 词：瞄准线 跟踪 动态补偿 惯性导航系统 坐标变换矩阵 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]