舰载雷达两轴转台系统机械结构简单,可对雷达天线法线的姿态角进行控制以保证雷达波束指向,但在舰船发生摇摆时,雷达波束绕天线法线发生旋转。本文分析了大地直角坐标系和舰船直角坐标系的关系,在舰船直角坐标系中对舰载雷达两轴转台系统的姿态角进行定义,用空间解析几何法推导出已知舰船平台罗经信号、天线法线姿态角时两轴转台系统的稳定方程和波束旋转角方程,为舰载雷达两轴转台系统的伺服控制和波束相关补偿提供理论依据。
The mechanical structure for the two-shaft-stabilized platform of the ship-borne radar is simple, which keep the direction of radar beam by controlling the attitude angles of the antenna normal, but the radar beam rotates around the antenna normal when ship swung. The relationship between geodetic coordinate system and ship coordinate system is analyzed, the two -shaft-stabilized system's attitude angles of the ship-borne radar in ship coordinate system are defined, when the value of platform compass and the ship-borne radar antenna normal's attitude angles are given, this paper provides a way to the two-shaft -stabilized system's steady-state equations and the radar beam's rotation angle equation by use of space analytic geometry method, which provides a theoretical basis for the ship-borne radar serve control and correlative compensation method.
2017,39(10): 127-131 收稿日期:2016-12-05
DOI:10.3404/j.issn.1672-7649.2017.10.025
分类号:TN959
作者简介:雷杰(1985-),男,硕士,工程师,研究方向为雷达伺服系统
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