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DSP在天线平台控制系统中的应用
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2009-07-30
张静
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合成孔径雷达要得到高分辨率的成像,必须保证天线波束指向恒定。本文以DSP 为核心构造天线平台数字控制系统来对大气扰动造成的雷达载体的角运动进行补偿，当雷达载体在方位向、横滚向及俯仰向发生角运动时，天线平台数字控制系统控制平台向相反方向转动，从而保证天线指向恒定，得到高分辨率的雷达图像。
关键词：雷达天线平台；数字控制系统；DSP；角运动补偿
Abstract: In order to obtain high resolution radar images, the antenna direction of SAR must be steady and precision. In this paper, with the DSP as the core, the digital control system of antenna platform can compensate the angle movement of the radar carrier due to the atmosphere interference. When radar carrier generates angle movement on the direction of drift, roll and pitch, the digital control system of antenna platform will drive the platform rotate reversely to guarantee the invariableness of the antenna direction and gain high resolution radar images.
Keywords: antenna platform of radar; digital control system; DSP; compensation of angle movement
关键词：雷达天线平台；数字控制系统；DSP；角运动补偿
Abstract: In order to obtain high resolution radar images, the antenna direction of SAR must be steady and precision. In this paper, with the DSP as the core, the digital control system of antenna platform can compensate the angle movement of the radar carrier due to the atmosphere interference. When radar carrier generates angle movement on the direction of drift, roll and pitch, the digital control system of antenna platform will drive the platform rotate reversely to guarantee the invariableness of the antenna direction and gain high resolution radar images.
Keywords: antenna platform of radar; digital control system; DSP; compensation of angle movement
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