张润宁,王旭莹,王志斌

• 1:中国空间技术研究院遥感卫星总体部

摘要(Abstract)：

分辨率和测绘带是星载合成孔径雷达(SAR)技术的两个重要指标,传统星载SAR由于最小天线面积的限制,不能同时实现方位向高分辨率和距离向宽测绘带。文章分析了星载SAR在同时实现高分和宽幅成像方面的固有约束以及传统SAR体制的局限性,分析比较了实现高分宽幅的新体制的技术特点、系统代价以及涉及的关键技术,从卫星总体角度分析了高分宽幅成像对卫星平台能源、数传等支撑能力的需求,并对未来高分宽幅SAR技术体制的发展方向进行了展望。

关键词(KeyWords)： 星载SAR;高分辨率宽测绘带SAR成像;数字波束形成

Abstract:

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基金项目(Foundation):

作者(Author): 张润宁,王旭莹,王志斌

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