機載SAR天線穩(wěn)定平臺的DSP數(shù)字控制器設(shè)計

機載SAR（airborne Synthetic Aperture Radar，合成孔徑雷達）中，用三軸穩(wěn)定平臺隔
離載機的姿態(tài)變化及機械振動來穩(wěn)定天線波束指向是關(guān)鍵的運動補償技術(shù)之一。本文提出用TMS320LF2407 DSP 芯片設(shè)計機載SAR 三軸陀螺穩(wěn)定平臺的數(shù)字控制器，介紹了機載SAR對穩(wěn)定平臺的要求和TMS329LF2407 DSP 芯片用于運動控制器設(shè)計的優(yōu)點，給出了控制系統(tǒng)的原理方框圖、數(shù)學(xué)模型和DSP 數(shù)字控制器結(jié)構(gòu)圖。
關(guān)鍵詞：機載SAR，穩(wěn)定平臺，TMS320LF2407 DSP，數(shù)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