Please wait a minute...
img

官方微信

遥感技术与应用  2008, Vol. 23 Issue (5): 576-581    DOI: 10.11873/j.issn.1004-0323.2008.5.576
技术研究与图像处理     
综合孔径辐射计的接收机结构及单双边带选择
薛永,苗俊刚,万国龙,胡岸勇,赵锋
(北京航空航天大学电子信息工程学院,北京 100083)
The Receiver Configuration and the Choice between Single-sideband and Double-sideband Mode of Synthetic Aperture
XUE Yong,MIAO Jun-gang,Wan Guo-long,HU An-yong,ZHAO Feng
 (School of Electronics and Information Engineering,Beihang University,Beijing 100083,China)
 全文: PDF(1502 KB)  
摘要:

根据I/Q解调实现方式的不同,将综合孔径辐射计接收机的结构分为I/Q下变频及先下变频再I/Q解调两种。分析了综合孔径辐射计在这两种接收机结构下分别选择单、双边带工作模式反演成像时是否会产生镜像干扰。结果表明,只有在综合孔径辐射计接收机为先下变频再I/Q解调结构且选择双边带模式时,系统反演成像会产生镜像干扰,在其它3种情况下皆不会产生;通过频域分析得到镜像干扰产生的原因是接收机在信号处理过程中将射频输入信号的负频分量混叠到中频输出解析信号中。最后,对综合孔径辐射计的单双边带两种工作模式进行了比较,并通过仿真验证了镜像干扰分析结果。

关键词: 综合孔径辐射计接收机单边带双边带镜像    
Abstract:

According to the different method of I/Q demodulation,the receivers of the synthetic aperture radiometer have two configurations,which are referred to as I/Q down-conversion and I/Q demodulation after down-conversion.It is analyzed that whether or not the mirror-image is produced when the synthetic aperture radiometer,with the two receiver configurations respectively,images the targets at single-sideband and double-sideband mode.The results show that the mirror-image is produced when the synthetic aperture radiometer with I/Q demodulation after down-conversion receivers configuration images the targets at double-sideband mode,not produced at the other cases.Through the signal analysis in frequency domain,the mirror-image is produced because the minus frequency components of the RF input signals are mixed into the analytic IF output signals when the RF input signals are processed by the receivers.At last,the comparison between the single-sideband and double-sideband mode of synthetic aperture radiometer and the radiant point-source imaging simulations,which prove the results of mirror-image analysis,are carried out.

Key words: Synthetic aperture    Radiometer    Receiver    Single-sideband    Double-sideband    Mirror-image
收稿日期: 2008-03-31 出版日期: 2011-11-07
:  TP 722.6  
基金资助:

国家自然科学基金(40476061),教育部“新世纪优秀人才支持计划”。

作者简介: 薛永(1983-),男,博士研究生,主要从事综合孔径微波辐射计成像方面的研究。E-mail:xueyong@ee.buaa.edu.cn。
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  

引用本文:

薛永,苗俊刚,万国龙,胡岸勇,赵锋. 综合孔径辐射计的接收机结构及单双边带选择[J]. 遥感技术与应用, 2008, 23(5): 576-581.

XUE Yong,MIAO Jun-gang,Wan Guo-long,HU An-yong,ZHAO Feng. The Receiver Configuration and the Choice between Single-sideband and Double-sideband Mode of Synthetic Aperture. Remote Sensing Technology and Application, 2008, 23(5): 576-581.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2008.5.576        http://www.rsta.ac.cn/CN/Y2008/V23/I5/576

[1] Le Vine D M,Griffis A J,Swift C T,etal.ESTAR:A Synthetic Aperture Microwave Radiometer for Remote Sensing Applications[J].Proceedings of the IEEE,1994,82(12):1787-1801.
[2] Ruf C S,Swift C T,Tanner A B,etal.Interferometric Synthetic Aperture Microwave Radiometry for the Remote Sensing of the Earth[J].IEEE Transactions on Geoscience and Remote Sensing,1988,26(5):597-611.
[3] Thompson A R,Moran J M,Swenson G W.Interferometry and Synthesis in Radio Astronomy [ M]. Second Edition. New York:John Wiley & Sons,2001:168-183.
[4] Tanner A B,Wilson W J,Lambrigsten B H,etal.Initial Results of the Geostationary Synthetic Thinned Array Radiometer (GeoSTAR) Demonstrator Instrument[J].IEEE Transactions on Geoscience and Remote Sensing,2007,45(7):1947-1957.
[5] Camps A.Application of Interferometric Radiometry to Earth Observation[D].Barcelona:Universitat Politecnica de Catalunya,1996:223-231.
[6] Zhou Y Q.An Introduction to Stochastic Processes[M].Beijing:Beijing University of Aeronautics and Astronautics Press,1987:275-279.[周荫清.随机过程导论[M].北京:北京航空航天大学出版社,1987:275-279.]
[7]    Camps A,Corbella I,Bara J,etal.Radiometric Sensitivity Computation in Aperture Synthesis Interferometric Radiometry[J].IEEE Transactions on Geoscience and Remote Sensing,1998,36(2):680-685.

[1] 马丽娜,李青,姜苏麟. 地基微波辐射计的亮温观测与模拟数据的一致性分析和云检测[J]. 遥感技术与应用, 2018, 33(1): 68-77.
[2] 王亚辉,王振占,张升伟. 全极化微波辐射计扫描目标成像方法研究[J]. 遥感技术与应用, 2017, 32(3): 483-489.
[3] 王振占,董帅,殷晓斌,陆浩,李彬. 有源微波冷噪声源的原理及其应用分析[J]. 遥感技术与应用, 2017, 32(2): 247-254.
[4] 金梦彤,刘浩,武林,. 星载一维综合孔径微波辐射计海洋盐度探测任务仿真及外部误差源分析[J]. 遥感技术与应用, 2017, 32(2): 346-355.
[5] 王兆徽,季轩梁,廖菲,宋清涛. AMSR-E的C/X双波段垂直极化亮温反演海面盐度[J]. 遥感技术与应用, 2017, 32(2): 356-362.
[6] 张瑞洁,杨晓城,阎敬业,吴季. FPIR 实时快视成像方法[J]. 遥感技术与应用, 2016, 31(3): 530-536.
[7] 孙强,吕达仁. 非降水条件下微波辐射计海面风遥感产品性能分析[J]. 遥感技术与应用, 2016, 31(1): 109-118.
[8] 张涛,赵少杰,张立新,张钟军,蒋玲梅,柴琳娜. 车载多频率微波辐射计与观测数据应用[J]. 遥感技术与应用, 2015, 30(5): 1012-1020.
[9] 王振占,谢莹,陆浩,董帅,李彬. 23.8 GHz数字相关型全极化微波辐射计的定标及其影响分析[J]. 遥感技术与应用, 2015, 30(4): 744-756.
[10] 陈思,刘浩,吴季,牛立杰. 基于Simulink的干涉式微波辐射计系统仿真研究[J]. 遥感技术与应用, 2015, 30(4): 757-766.
[11] 谷松岩,郭杨,游然. FY-3A/MWHS辐射传递及冷空偏差修正[J]. 遥感技术与应用, 2015, 30(2): 251-257.
[12] 窦芳丽,安大伟,李嘉睿. 基于FY-3B微波成像仪的海面风速反演[J]. 遥感技术与应用, 2014, 29(6): 984-992.
[13] 李青,胡方超,楚艳丽,王振会,黄建松,王云,朱雅毓. 北京一地基微波辐射计的观测数据一致性分析和订正实验[J]. 遥感技术与应用, 2014, 29(4): 547-556.
[14] 张勇,吕达仁. 星载全极化微波辐射计海面风向反演仿真研究[J]. 遥感技术与应用, 2014, 29(3): 386-393.
[15] 卢红丽,王振占,殷晓斌. 利用SMOS卫星数据反演海洋盐度方法研究[J]. 遥感技术与应用, 2014, 29(3): 401-409.