超高分辨率机载SAR系统宽带激振器的设计与实现

Q2 Physics and Astronomy

雷达学报 Pub Date : 2013-02-01 DOI:10.3724/SP.J.1300.2013.20100

Ying-xin Jia, Yanfeng Wang

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引用次数: 0

摘要

基于分辨率优于0.1 m的超高分辨率机载SAR系统，设计并实现了载波14.8 GHz、带宽3.2 GHz的宽带线性调频(LFM)脉冲压缩激励器。详细介绍了宽带线性调频波形信号生成方案的选择和若干关键技术要点。然后，对LFM信号进行了急性测试和分析。最后的机载实验验证了作为超高分辨率机载SAR系统子系统之一的LFM源的有效性。

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Design and Implementation of Wideband Exciter for an Ultra-high Resolution Airborne SAR System

: We designed and implemented a wideband Linear Frequency Modulated (LFM) pulse compression exciter with 14.8 GHz carrier and 3.2 GHz bandwidth based on an ultra-high resolution airborne SAR system with a better than 0.1 m resolution. The selection of a signal generation scheme and some key technique points for wideband LFM waveform are presented in detail. Then, an acute test and analysis of the LFM signal are performed. The final airborne experiments demonstrate the validity of the LFM source, which is one of the subsystems in an ultra-high resolution airborne SAR system.

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来源期刊

雷达学报 Physics and Astronomy-Instrumentation

CiteScore

4.10

自引率

0.00%

发文量

882

期刊介绍： Information not localized