一种基于超定结构方程的天体定位计算方法研究  

A Calculation Method of Celestial Fix Based on Advanced Determination

作　　者：杨晓东[1] 

机构地区：[1]哈尔滨工程大学

出　　处：《船舶工程》2002年第4期19-22,共4页Ship Engineering

摘　　要：在天文导航或利用天文定位对惯性导航系统进行校正时 ,均要涉及到天体定位计算 ,其中能够方便直接使用计算机进行数据计算的方法主要有直接计算方法。本文给出了基于超定结构方程的直接天体定位计算方法 ,这在一定程度上提高了天文导航计算中的可靠性和准确性 ,为自动天文定位、定向计算提供了一种较为实用的方法。同时给出了基于卡尔曼滤波方法的天体参数的测量与计算 ,这在一定程度上提高了在天文导航计算中原始数据的可靠性 。The positional calculation of celestial bodies is associated with whatever position from celestial fix method system or calibration of inertial navigation system. The direct calculation of position is more useful with the help of computer. The paper gives a method of direct calculation of position based on advanced determination. Moreover, this method provides high accuracy and reliability of the position calculation. And the paper gives a useful program of position and direction. Meanwhile,the paper gives a method for measurement and calculation of these parameters based on Kalman filter. And this method gives a reliability of parameter source at the very beginning of position calculation by means of celestial fix method.

关 键 词：天体定位 计算方法 超定结构方程 船位测定 惯性导航 

分 类 号：U675.64[交通运输工程—船舶及航道工程]