摘要
姿态指向稳定度是合成孔径雷达卫星平台设计的重要参数。文中在卫星姿态指向抖动数学模型的基础上,利用成对回波理论推导了姿态指向抖动对聚束SAR点目标冲激响应函数的影响,分析了姿态指向抖动与聚束SAR成像质量指标的关系,推导了姿态指向稳定度与聚束SAR图像质量之间定量关系的解析表达式,为聚束模式星载SAR卫星总体分析和设计提供了理论依据。最后通过计算机仿真验证了分析的正确性。
Attitude stability is a very important parameter for the platform design of Synthetic Aperture Radar （ SAR） satellite. Based on the mathematical model of satellite attitude jitter and paired echo theory , a method quantitatively analyzing the relationship between spotlight SAR imaging quality and satellite attitude jitter was develop . The validity of theoretical results was confirmed by computer simulation.
出处
《现代雷达》
CSCD
北大核心
2007年第8期18-21,共4页
Modern Radar
关键词
合成孔径雷达
聚束模式
卫星姿态
成对回波
synthetic aperture radar
spotlight
satellite attitude
paired-echo
