机载SAR天线稳定平台的DSP数字控制器设计

机载SAR（airborne Synthetic Aperture Radar，合成孔径雷达）中，用三轴稳定平台隔
离载机的姿态变化及机械振动来稳定天线波束指向是关键的运动补偿技术之一。本文提出用TMS320LF2407 DSP 芯片设计机载SAR 三轴陀螺稳定平台的数字控制器，介绍了机载SAR对稳定平台的要求和TMS329LF2407 DSP 芯片用于运动控制器设计的优点，给出了控制系统的原理方框图、数学模型和DSP 数字控制器结构图。
关键词：机载SAR，稳定平台，TMS320LF2407 DSP，数字控制器

Abstract: Three-axis stabilized platform, as a key motion compensation technology for airborne Synthetic Aperture Radar (SAR), is used to isolate attitude variations and mechanical vibration from aircraft, resulting in stable antenna pointing. In this paper design of based-TMS320LF2407 DSP digital controller for airborne SAR antenna three-axis stabilized platform is presented. The requirement of airborne SAR to stabilized platform and the advantages of this DSP used to implement motion controller are described. The theoretic block and mathematic model of the control system as well as the structure of DSP digital controller are given.
Keywords: Airborne SAR, Stabilized platform, TMS320LF2407 DSP, Digital controller