| 高分辨率SAR宽带I/Q正交解调器的实验研究 |
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| 引用本文： | 张莉. 高分辨率SAR宽带I/Q正交解调器的实验研究[J]. 雷达科学与技术, 2003, 1(4): 250-254 |
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| 作者姓名： | 张莉 |
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| 作者单位： | 华东电子工程研究所,安徽合肥,230031 |
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| 摘 要： | 宽带I／Q正交解调器是高分辨率SAR系统的关键部件之一。本文讨论了宽带I／Q正交解调器对高分辨SAR系统性能的影响，分析了其主要误差来源，给出了设计原则，介绍了具体电路的设计过程，并给出实验结果。实验表明，该解调器用于高分辨SAR系统是有效的。
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| 关 键 词： | 高分辨率SAR 宽带I／Q正交解调器 幅相误差 非线性失真 系统性能 电路设计 |
| 文章编号： | 1672-2337(2003)04-0250-05 |
| 修稿时间： | 2003-09-23 |
Experimental Study on Wideband I/Q Demodulator for High-Resolution SAR System |
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| ZHANG Li East China Research Institute of Electronic Engineering. Hefei . China. Experimental Study on Wideband I/Q Demodulator for High-Resolution SAR System[J]. Radar Science and Technology, 2003, 1(4): 250-254 |
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| Authors: | ZHANG Li East China Research Institute of Electronic Engineering. Hefei . China |
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| Affiliation: | ZHANG Li East China Research Institute of Electronic Engineering. Hefei 230031. China |
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| Abstract: | The wideband I/Q demodulator is one of the key devices for high-resolution SAR system.This paper discusses the effect of the wideband I/Q demodulator to the performance of the high-resolutionSAR system, analyses the major error sources, presents the design principle. introduces the design procedureof the practical circuit, and gives the experimental results at last. The experimental results prove the wide-band I/Q demodulator to be effective for high-resolution SAR system. |
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| Keywords: | wideband I/Q demodulaltor amplitude and phase error nonlinear distortion |
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