舰艇姿态对雷达测量误差的影响分析

Analysis of Effects on Radar Measurement Errors Due to Ship Attitude

为了研究舰艇姿态对雷达测量误差的影响,分析了雷达测量过程中引入舰艇姿态误差的机理.。采用对误差传递过程进行建模的方法,建立了包含舰艇姿态因素的雷达测量误差模型。通过该模型分析了舰艇姿态角误差对雷达测量目标距离、方位角和高低角误差的不同影响,得出雷达测距误差不受姿态角误差影响,方位角误差与艏向角误差呈线性关系,高低角误差受纵摇角与横摇角误差影响,并随目标方位按正弦规律变化的结论。计算机仿真结果验证了结论的正确性。

In order to study radar measurement error evolution,the main source of radar system error has been analyzed.Based on model of error transfer process idea,a ship-based radar measurement error model is built.The paper analyzes the shipboard navigation information in the attitude angle measurement error on the radar target distance,azimuth and elevation angles of the different effects obtained from radar ranging error of attitude angel,azimuth angle error and heading error of linear between high and low angle error is limited by pitching angle and roll angle error,and with the target position changes according to the conclusions of the sine law.The computer simulations testify the correctness of the conclusions.