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根据微波雷达测浪的基本原理,提出了一种船载S波段海浪遥测雷达走航观测方法.利用将舰船坐标系转换到地球坐标系的坐标转移矩阵对舰船的姿态进行校准,得到校准后的雷达天线的方位角和仰角,结合划分网格的方式确定了在一段时间内雷达天线的公共照射区域,实现了对船载雷达姿态校准后初步的信号处理.运用舰船的姿态角特点和海情与舰船姿态角中的横滚角和俯仰角的关系设定了仿真条件,给出了姿态校准和查找公共照射区域的仿真结果.仿真结果表明舰船姿态的变化引起了雷达天线方位角和仰角的变化,并显示雷达天线在一段时间内公共照射区域的大小与舰船速度和海情有关.
According to the basic principle of microwave radar surfacing, this paper proposes a navigational observation method of ship-borne S-band ocean wave remote sensing radar.The calibration of the ship’s attitude is achieved by converting the ship coordinate system to the coordinate transfer matrix of the Earth’s coordinate system After the azimuth and elevation of the radar antenna, combined with the way of dividing the grid to determine the radar antenna in a period of time the public irradiation area, to achieve the shipborne radar attitude calibration after the initial signal processing.Using the ship’s attitude angle characteristics And the relationship between the sea level and the roll angle and pitch angle in the ship attitude angle, the simulation conditions are set, and the simulation results of the attitude calibration and the search for the public exposure area are given. The simulation results show that the change of the ship attitude causes the radar antenna Azimuth and elevation changes, and shows that the radar antenna in a period of time the size of the public exposure and ship speed and the sea conditions.