摘要
舰载电子经纬仪相对于岸上物标的舷角测量精度会直接影响舰艇真航向的解算精度。在航行过程中,舰艇会因风浪产生摇摆,舷角的测量精度也会受到影响。本文主要分析了不同摇摆情况对电子经纬仪测量的影响,同时利用坐标变换原理和舰艇提供的姿态信息推导出舷角测量的误差修正数学表达式。最后采用Matlab语言对文中修正方法进行编程与仿真验证。仿真结果表明,误差修正较好地改善了舰艇摇摆对舷角测量的影响,保证了舷角测量的精度,从而为舰艇真航向动态测量研究提供了有力的理论依据。
The accuracy of board angle which is measured by a carried-based electronic transit will directly impacts the accuracy of true course of warship.Due to the influence of wind and waves warship swing will happen in the navigation state.The accuracy of board angle will be also affected.This paper mainly researches the measurement error of the electronic transit in different cases of warship swing.And the mathematical expression for error compensation of board angle is deduced by utilizing the principle of coordinate transformation and attitude information of warship.Finally,in order to verify the correction method this paper uses Matlab language to program and simulate.The simulation results show that the effect of warship swing is well improved after error compensation in the measurement of board angle and the accuracy of board angle is ensured.Importantly,this paper plays a solid theory foundation for getting dynamic measurement of true course of warship.
出处
《舰船科学技术》
北大核心
2013年第9期66-70,共5页
Ship Science and Technology
关键词
岸标舷角
坐标变换
误差修正
MATLAB仿真
测量精度
target angle of shore
coordinate transformation
error correction
Matlab simulation
measurement accuracy
