| FMICW用于单基机载SAR的成像研究 |
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| 引用本文： | 侯海平,杨俭,曲长文.FMICW用于单基机载SAR的成像研究[J].雷达科学与技术,2011,9(2):115-119. |
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| 作者姓名： | 侯海平 杨俭 曲长文 |
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| 作者单位： | 海军航空工程学院电子信息工程系,山东,烟台,264001 |
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| 基金项目： | “泰山学者”建设工程专项经费资助; 中国博士后科学基金(No.2005037772) |
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| 摘 要： | 针对调频连续波合成孔径雷达(FMCW SAR)用于单基机载平台时无法实现发射和接收隔离的难题,提出了基于中断连续波(FMICW)的单基机载SAR成像研究。基于FMICW的信号特点,详细讨论了FMICW用于SAR成像时门控脉冲宽度、门控脉冲重复频率、门控脉冲周期数、扫频频率等参数的制约关系,给出了FMICW SAR的系统结构,并有针对性地分析了信号处理模块。最后结合距离多普勒(RD)算法对FMICW SAR进行成像仿真试验,对模型进行了验证。结果表明机载FMICW SAR不但可以有效解决收发隔离,并且可以实现对目标的精确成像。
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| 关 键 词： | 合成孔径雷达(SAR) 调频中断连续波 收发隔离 成像 |
Research on FMICW in Monostatic Airborne SAR Imaging |
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| HOU Hai-ping,YANG Jian,QU Chang-wen.Research on FMICW in Monostatic Airborne SAR Imaging[J].Radar Science and Technology,2011,9(2):115-119. |
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| Authors: | HOU Hai-ping YANG Jian QU Chang-wen |
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| Affiliation: | HOU Hai-ping,YANG Jian,QU Chang-wen(Department of Electronic and Information Engineering,Naval Aeronautical and Astronautical University,Yantai 264001,China) |
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| Abstract: | Isolation between transmitter and receiver can't be solved when frequency modulated continuous wave(FMCW) SAR is applied in monostatic airborne platform.Aiming at this problem,frequency modulated interrupted continuous wave(FMICW) is proposed in monostatic airborne SAR imaging.Based on the characteristics of FMICW signal,the restraint condition of the parameters in FMICW SAR including gate pulse width,gate pulse repetition frequency,gate pulse number in a sweeping period,and sweeping frequency etc.,are disc... |
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| Keywords: | synthetic aperture radar(SAR) frequence modulated interrupted continuous wave(FMICW) isolation imaging |
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