| 基于闭环多分配网络重叠的噪声注入校正方法 |
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| 引用本文： | 赵锋,苗俊刚,万国龙,薛永,胡岸勇.基于闭环多分配网络重叠的噪声注入校正方法[J].遥感技术与应用,2008,23(1):77-81. |
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| 作者姓名： | 赵锋 苗俊刚 万国龙 薛永 胡岸勇 |
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| 作者单位： | (北京航空航天大学电子信息工程学院,北京 100083) |
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| 基金项目： | 国家自然科学基金
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教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 提出了一种闭环多噪声网络重叠注入的干涉式综合孔径辐射计校正方法,该方法采用多个1?4噪声注入网络闭环重叠来实现1?10噪声注入网络;然后对其鲁棒性分析,分析结果表明在不可分离误差小于1°,正交残余误差小于0.5°,输出测量值随机误差为2%时,通道相位差估计精度不大于2.3°;与开环噪声网络重叠注入法相比,该方法能达到更高的校正精度。
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| 关 键 词： | 相关噪声注入法 闭环 通道同相相位误差 幅度误差 |
| 文章编号： | 1004-0323（2008）01-0077-05 |
| 收稿时间： | 2007-08-31 |
| 修稿时间： | 2008-01-14 |
A Calibration Method by Correlated Noise Injection with Distribution Networks Overlapped on a Closed Loop |
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| ZHAO Feng,MIAO Jun-gang,WAN Guo-long,XUE Yong,HU An-yong.A Calibration Method by Correlated Noise Injection with Distribution Networks Overlapped on a Closed Loop[J].Remote Sensing Technology and Application,2008,23(1):77-81. |
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| Authors: | ZHAO Feng MIAO Jun-gang WAN Guo-long XUE Yong HU An-yong |
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| Affiliation: | (School of Electronics and Information Engineering,Beijing University of;
Aeronautics and Astronautics,Beijing100083,China) |
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| Abstract: | A calibration method of receiving in-phase error and amplitude error is brought out,which overlap
many 1?4noise distribution networks on a closed loop to achieve 1?10 noise distribution network.The
method's robust is also analyzed,the result shows in-phase remain error is less than 2.3 degree when the
unseparated in-phase error is 1 degree,quadrature error is 0.5 degree and random error is 2%, which indi-
cates the calibration overlapped on a closed loop is prior to the opened one. |
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| Keywords: | Calibration by correlated noise injection Closed loop In-phase error Amplitude error |
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