機載SAR（airborne Synthetic Aperture Radar，合成孔徑雷達）中，用三軸穩定平臺隔
離載機的姿態變化及機械振動來穩定天線波束指向是關鍵的運動補償技術之一。本文提出用TMS320LF2407 DSP 芯片設計機載SAR 三軸陀螺穩定平臺的數字控制器，介紹了機載SAR對穩定平臺的要求和TMS329LF2407 DSP 芯片用于運動控制器設計的優點，給出了控制系統的原理方框圖、數學模型和DSP 數字控制器結構圖。
關鍵詞：機載SAR，穩定平臺，TMS320LF2407 DSP，數字控制器

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