合成孔径雷达中的二维自动增益控制
Two-Dimensional Automatic Gain Control in Synthetic Aperture Radar
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摘要: 该文给出一种合成孔径雷达接收机自动增益控制(AGC)的方法，该方法对合成孔径雷达信号 进行二维平均，既保持了信号的原有特性,又提高了接收机的动态范围。与传统的自动增益控制方法相比，它能更好地消除短时间内的干扰以及保留合成孔径雷达图像中的对比度。该文在对二维AGC工作方式及时间参数选择进行阐述之后，给出了二维AGC的计算机仿真结果以及雷达实际使用AGC后获得的图像。
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关键词:
- 合成孔径雷达（SAR）; 二维AGC
Abstract: In this paper, a method of automatic gain control for synthetic aperture radar is given. In this way, radar signal is processed in two dimensions. Comparison to the traditional AGC, this method keeps the properties of signal and widens the dynamic range of the receiver. Then the operation mode and coefficient of 2-Dimensional AGC are described, and the computer simulation results and the real radar image are given. -
张澄波.综合孔径雷达.北京:科学出版社,1989,第一章.[2]丁鹭飞,耿富录.雷达原理.西安:西安电子科技大学出版社.1995,66-69.[3]Ulaby, F T, Moore IR K, Fung A F. Microwave Remote Sensing and Surface Scattering and Emission Theory. Artech House, 1982, Ch.6.[4]袁孝康.自动增益控制与对数放大器.北京:国防工业出版社,1987,22-54.[5]M.I.斯科尔尼克著.王军,林强等译.雷达手册.北京:国防工业出版社,1978. -
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