摘要
舰船在风浪激励或(和)其它因素的作用下产生六自由度的随机摇荡运动,而摇荡运动将降低舰载武器的打击精度。针对该问题,论文在捷联惯导(SINS)导航解算的基础上,提出了数字滤波的舰船振荡运动分离方法,以实时分离舰船振荡运动,并实时修正舰载武器的运动轨迹,提高其打击精度。由于惯性导航系统为避免加速度对平台跟踪地垂线的干扰而自然形成舒勒振荡,此振荡必然会引入舰船运动的导航解算结果中,因此为提取出瞬时运动,引入数字高通滤波器消除舒勒振荡。论文给出了瞬时运动定义及滤波器的实现方法,仿真结果证明了该方法的有效性。
Ship swaying motion in six degrees caused by the effects of marine environment,such as the wind,will significantly decrease the accuracy of on-board weapon or other devices.Aiming to solve this problem,a new separation method based on Strapdown Inertial Navigation System（SINS）solution and digital filter is detailedly designed,which can separate the sawing motion from navigation motion effectively and generate compensation information for on-board device,thus increase the accuracy.In this paper,the definition about instantaneous movement and its coordinated frame are described,and the high-pass filter is introduced to remove Schuler oscillation which produced from the inertial navigation calculation in navigation results.The high-pass filter is designed and achieved,and simulation results indicate that with SINS solution and high-pass filter,the oscillatory motion can be effectively separated.
出处
《舰船电子工程》
2015年第7期80-83,113,共5页
Ship Electronic Engineering
基金
国家自然科学基金(编号:61273056)资助
作者简介
赵玉，女，硕士研究生，研究方向：惯性导航与组合导航。
宋清，女，硕士研究生，研究方向：惯性导航与组合导航。
刘志鹏，男，硕士研究生，研究方向：惯性导航与组合导航。
刘锡祥，男，副教授，博士生导师，研究方向：惯性导航与组合导航。
