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2007 1st Asian and Pacific Conference on Synthetic Aperture Radar最新文献

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Fabrication of the tile type transceiver module package for X-band phase array radar using selectively anodized aluminum substrate 选择性阳极化铝基板制备x波段相控阵雷达瓦片式收发模块封装
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-05 DOI: 10.1109/APSAR.2007.4418573
Jong-Hoon Chun, Sung-Ku Yeo, Young-Se Kwon
{"title":"Fabrication of the tile type transceiver module package for X-band phase array radar using selectively anodized aluminum substrate","authors":"Jong-Hoon Chun, Sung-Ku Yeo, Young-Se Kwon","doi":"10.1109/APSAR.2007.4418573","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418573","url":null,"abstract":"In this paper, we proposed a tile type transceiver module package for X-band phase array radar system using a selectively anodized aluminum substrate. The proposed solution of package is based on thick anodized aluminum oxide (Al2O3) layers and bare chips mounted on aluminum for an effective heat sink. This package method can be further contributed to decreasing cost, reducing module size and managing thermal problem for the microwave high power T/R modules.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121229867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Two dimension chirp-Z transform for polar format imaging algorithm 极坐标格式成像的二维chirp-Z变换算法
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418718
Tang Yu, Xing Meng-dao
{"title":"Two dimension chirp-Z transform for polar format imaging algorithm","authors":"Tang Yu, Xing Meng-dao","doi":"10.1109/APSAR.2007.4418718","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418718","url":null,"abstract":"Spotlight SAR is an efficiency way to obtain high resolution radar imagery. The classic polar format algorithm (PFA) is the widely used method for spotlight SAR imagery reconstruction, but PFA need two dimension interpolation operation in SAR imaging, which has influence on the imaging precision and computation efficiency. This paper presents a novel polar format Algorithm based on two dimension CZT transform, which may avoid the interpolation operation to improve on imaging precision and computation efficiency.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127114560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A new method about placement of the branch cut in two-dimensional phase unwrapping 一种二维相位展开中分支切口放置的新方法
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418721
Xiao Feng, Wu Jicang, Zhang Lei, L. Xiaoling
{"title":"A new method about placement of the branch cut in two-dimensional phase unwrapping","authors":"Xiao Feng, Wu Jicang, Zhang Lei, L. Xiaoling","doi":"10.1109/APSAR.2007.4418721","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418721","url":null,"abstract":"Phase unwrapping is one of the key problems in data processing of interferometric synthetic aperture radar (InSAR). One of the classic unwrapping algorithms is the path-following approach based on placement of branch cut. In this paper, we prove that existence of residues is a sufficient but unnecessary condition for the original phase discontinuity and the true placement of the branch cut is unique. Then a modified method of placing branch cuts which is guided by improved quality map is proposed. The simulation examples show that the modified method is more effective and practicable.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123446528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
An X band polarimetric ARC prototype X波段偏振ARC原型
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418593
Zhu Yongtao, Wang Caiyun, Li Liang, Hong Jun
{"title":"An X band polarimetric ARC prototype","authors":"Zhu Yongtao, Wang Caiyun, Li Liang, Hong Jun","doi":"10.1109/APSAR.2007.4418593","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418593","url":null,"abstract":"Polarimetric SAR can provide amplitude and phase information of targets, thus is widely used. For high image data quality, accurate ground calibration targets are needed. This paper describes a prototype multifunctional Polarimetric Active Radar Calibrator (PARC). An experiment was made in microwave darkroom to prove the applicability of PARC in polarimetric SAR calibration.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123776311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Modified doppler centroid tracking for ISAR based on image equilibrium 基于图像平衡的ISAR改进多普勒质心跟踪
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418638
C. Yeh, Jia Xu, Yingning Peng, Xiu-tan Wang
{"title":"Modified doppler centroid tracking for ISAR based on image equilibrium","authors":"C. Yeh, Jia Xu, Yingning Peng, Xiu-tan Wang","doi":"10.1109/APSAR.2007.4418638","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418638","url":null,"abstract":"Phase correction is a key step of inverse synthetic aperture radar (ISAR) motion compensation, which seriously affects the ISAR focusing and imaging quality. As a typical phase correction method, Doppler centroid tracking (DCT) method has clear principle and small computation amount. However, the performance of DCT is normally unsatisfactory when the target has strong scattering centers. Based on the analysis and comparison of existing methods, the image-domain equilibrium is proposed in this paper to improve the performance of DCT method. By using the simple operators of equilibrium and feedback, the proposed method may dramatically reduce the effect of prominent scattering centers and improve the robustness and the ultimate imaging quality. Finally, the effectiveness of the proposed method is verified via the performance analysis and imaging results of real airplane target.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114890217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Modified phase history model for high resolution spaceborne bistatic SAR 高分辨率星载双基地SAR的修正相位历史模型
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418695
Jinshan Ding, M. Xing, Z. Bao
{"title":"Modified phase history model for high resolution spaceborne bistatic SAR","authors":"Jinshan Ding, M. Xing, Z. Bao","doi":"10.1109/APSAR.2007.4418695","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418695","url":null,"abstract":"Recently bistatic synthetic aperture radar (SAR), especially spaceborne SARs, has attracted the attention of many radar researchers. Generally, the orbit of satellite for remote sensing purposes is an ellipse with small eccentricity, and the earth should be modeled as an ellipsoid. It is well known that a second-order relative motion model can be a good approximation to a monostotic spaceborne SAR. However, for bistatic cases, this phase history model mismatches the real relative motion between a satellite and a rotating earth, dissatisfying the imaging accuracy requirement, and it limits the available azimuth resolution. In order to use the well studied SAR imaging algorithms, we develop a new second-order phase history model for bistatic spaceborne SAR using the phase error fitting method based on the ephemeris data. The new model strengthens the applicability of the conventional second-order phase history model of spaceborne bistatic SAR significantly.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115529256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel adaptive filtering algorithm for SAR speckle reduction 一种新的SAR散斑抑制自适应滤波算法
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418619
Zhu Jiabing, Chen Renyuan, Hong Yi
{"title":"A novel adaptive filtering algorithm for SAR speckle reduction","authors":"Zhu Jiabing, Chen Renyuan, Hong Yi","doi":"10.1109/APSAR.2007.4418619","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418619","url":null,"abstract":"The novel adaptive filtering algorithm based on the analysis of the detail images obtained from the wavelet decomposition of the original noisy image is proposed in the paper. The base idea is to compute the wavelet decomposition of the noisy image to reduce the amplitude of insignificant detail coefficients in the wavelet subspaces by selecting an adaptive filter window of size, the adaptive windowing algorithm was introduced where the window size is automatically adjusted depending on the samples statistics in the boundary of this window such as mean macrZ and standard deviation sigmaz , and then utilizing modified 2nd order Lee filtering. One of the advantages of this approach over the traditional speckle filtering method is the fact that textures are preserved while speckle is reduced. Experimental simulations by real SAR images show it are effective.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122463725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A light high resolution airborne SAR system 一种轻型高分辨率机载SAR系统
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418551
Wang You-lin, Ye Qi, Jiang Bin
{"title":"A light high resolution airborne SAR system","authors":"Wang You-lin, Ye Qi, Jiang Bin","doi":"10.1109/APSAR.2007.4418551","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418551","url":null,"abstract":"This article mainly discusses the composition of a kind of light high-resolution airborne SAR system and technical specifications with flight-test result is presented. Through multi-sorties flight test, high resolution SAR image is obtained and correctness of radar system design is verified.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114571355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The design of waveform-generation applied to wide-band high resolution imaging radar 应用于宽带高分辨率成像雷达的波形发生器设计
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418681
S. Y. Jiang, Zhang Jin, Zhang Hua
{"title":"The design of waveform-generation applied to wide-band high resolution imaging radar","authors":"S. Y. Jiang, Zhang Jin, Zhang Hua","doi":"10.1109/APSAR.2007.4418681","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418681","url":null,"abstract":"Linear frequency modulated (LFM) signal is widely used in radar duo to its good characteristic. Aimed at transmitted waveform design of SAR system, a scheme of the wide-band LFM signal based on DDS technique is presented in this paper. Some factors affecting its compressed performance are also discussed. Finally, experiments results show that the proposed scheme is available.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117302047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Baseline analysis of Polarimetric SAR Interferometry 偏振SAR干涉测量基线分析
2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Pub Date : 2007-11-01 DOI: 10.1109/APSAR.2007.4418584
Zhou Yong-sheng, H. Wen, Wang Yan-ping, Wu Yi-rong, C. Fang
{"title":"Baseline analysis of Polarimetric SAR Interferometry","authors":"Zhou Yong-sheng, H. Wen, Wang Yan-ping, Wu Yi-rong, C. Fang","doi":"10.1109/APSAR.2007.4418584","DOIUrl":"https://doi.org/10.1109/APSAR.2007.4418584","url":null,"abstract":"Polarimetric SAR interferometry (Pol-InSAR) combines SAR interferometry (InSAR) and SAR polarimetry (PolSAR), and it helps to the generation of digital elevation models (DEMs) as well as the parameter estimation of natural volume scatters. Baseline is an important concept in conventional InSAR applications. With the introduction of polarization into InSAR, the baseline requirements of Pol-InSAR are different from those of InSAR. In this paper baseline decorrelation, which includes surface decorrelation and volume decorrelation, is firstly analyzed with the random volume over ground (RVoG) model. Then some different considerations in choosing baseline between Pol-InSAR and InSAR are presented. Finally methods of determining Pol-InSAR baseline are given and discussed.","PeriodicalId":174133,"journal":{"name":"2007 1st Asian and Pacific Conference on Synthetic Aperture Radar","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121519202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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