现代星载海洋监视雷达既需要高分辨率,又要有大成像幅宽能力。但分辨率和成像幅宽在常规合成孔径雷达成像模式下往往不能同时兼顾。文中分析了二者之间存在矛盾的原因,提出一种能兼顾的双频段多通道解决方案,对其在工程实施中存在的关键技术进行了重点阐述,明确了技术实施途径。通过机载实验试飞,验证了关键技术工程实施的有效性和可行性。

Modern spaceborne ocean surveillance radar has the requirements of high resolution and wide-swath imaging functions, but these two features can't be addressed at the same time on synthetic aperture radar normal imaging modes. The reason for this dilemma is analyzed in this paper,and a solution of two bands and multi-channels to this problem is presented, the key techniques on its engineering realization are described in detail and the implementing methods are proposed. The imaging results of live data by flight test demonstrate the feasibility and validity of these realizable techniques.

TN957