基于GPS双天线的弹体姿态测量方法

摘要

Aiming at the problem that it is hard to accurately determine the information of shipborne weapon proj ectile attitude to real-tim,a method of measuring the attitude of flying proj ectile using GPS dual antenna configuration scheme was put forward t.The method established the observation model of flying proj ectile atti-tude determination,based on GPS carrier phase information solution analysis and baseline vector integer ambigu-ity solution.the attitude information of the body was obtained by coordinating transformation.The numerical simulation results showed that the pitch angle error of the missile was in the range of the yaw angle error,and the validity of the model and algorithm.%针对舰载武器弹体飞行姿态信息难以实时准确测定的问题,提出采用GPS双天线配置方案来测量飞行弹体姿态的方法,该方法首先建立用于飞行弹体姿态测定的观测模型,结合对GPS载波相位信息求解基线矢量及整周模糊数解算的分析推导,通过坐标系的变换得到弹体的姿态信息.数值计算表明,弹体的俯仰角误差范围在±0.8°之间;偏航角误差范围在±0.7°之间,计算结果验证了模型和算法的有效性.