Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.20091
Hai-bo Liu, Meng-meng Sheng, Xiao-qian Yang
{"title":"A Study of MMW Collision Avoidance Radar System for Trains: A Study of MMW Collision Avoidance Radar System for Trains","authors":"Hai-bo Liu, Meng-meng Sheng, Xiao-qian Yang","doi":"10.3724/SP.J.1300.2013.20091","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.20091","url":null,"abstract":"","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"2 1","pages":"234-238"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70074653","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}
Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.20073
Gongbo Chen, Yong Li, Man-yi Tao
{"title":"Data-based Parameter Estimation Method for Circular-scanning SAR Imaging: Data-based Parameter Estimation Method for Circular-scanning SAR Imaging","authors":"Gongbo Chen, Yong Li, Man-yi Tao","doi":"10.3724/SP.J.1300.2013.20073","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.20073","url":null,"abstract":"","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"2 1","pages":"203-209"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70074976","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}
Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.13003
Guang-hua Qian, Ying Li, Rongjian Luo
{"title":"One Maneuvering Frequency and the Variance Adaptive Filtering Algorithm for Maneuvering Target Tracking: One Maneuvering Frequency and the Variance Adaptive Filtering Algorithm for Maneuvering Target Tracking","authors":"Guang-hua Qian, Ying Li, Rongjian Luo","doi":"10.3724/SP.J.1300.2013.13003","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.13003","url":null,"abstract":"","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"2 1","pages":"257-264"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70073680","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}
Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.13021
Li Daojing, Qingjuan Zhang, Bo Liu, Yangbaihe Hong, Pan Jie
{"title":"Key Technology and Implementation Scheme Analysis of Air-borne Synthetic Aperture Ladar: Key Technology and Implementation Scheme Analysis of Air-borne Synthetic Aperture Ladar","authors":"Li Daojing, Qingjuan Zhang, Bo Liu, Yangbaihe Hong, Pan Jie","doi":"10.3724/SP.J.1300.2013.13021","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.13021","url":null,"abstract":"","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"2 1","pages":"143-151"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70073773","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}
Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.13008
Ming Qiao, Zhou-Hao Pan, Bo Liu, Daojing Li
Abstract: In this paper, modeling of the channel leakage error of a three-baseline MMWInSAR (MilliMeter Wave Interferometric Synthetic Aperture Radar) is analyzed, and the mathematical expression of the error’s parameters and interference phase error is deduced. Furthermore, using quantitative analysis, the paper investigates the impact on the interferometric phase error and elevation error from the channel leakage. Finally, a compensation method for the channel leakage error is presented. The results of simulation experiments verified the effectiveness of the compensation method.
{"title":"Analysis and Compensation Method Research on the Channel Leakage Error for Three-baseline MMWInSAR: Analysis and Compensation Method Research on the Channel Leakage Error for Three-baseline MMWInSAR","authors":"Ming Qiao, Zhou-Hao Pan, Bo Liu, Daojing Li","doi":"10.3724/SP.J.1300.2013.13008","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.13008","url":null,"abstract":"Abstract: In this paper, modeling of the channel leakage error of a three-baseline MMWInSAR (MilliMeter Wave Interferometric Synthetic Aperture Radar) is analyzed, and the mathematical expression of the error’s parameters and interference phase error is deduced. Furthermore, using quantitative analysis, the paper investigates the impact on the interferometric phase error and elevation error from the channel leakage. Finally, a compensation method for the channel leakage error is presented. The results of simulation experiments verified the effectiveness of the compensation method.","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"2 1","pages":"68-76"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70073974","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}
Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.20067
Yingjie Zhang, Yanping Wang, W. Tan, W. Hong
: Combined with Frequency-Modulated Continuous-Wave (FMCW) technology, airborne forward-looking Synthetic Aperture Radar (SAR) with linear array antennas can obtain the images in front of an aircraft, while having the advantages of FMCW radar such as small size and lightweight. Moreover, it is suitable for installation on platforms such as helicopters and small unmanned aerial vehicles. In practice, motion compensation for forward-looking SAR with linear array antennas is one of the key problems to obtaining the images in front of aircraft. This paper uses linear array antennas to analyses the influence of motion error in aircraft on an echo model based on the geometry of forward looking SAR, with linear array antennas, and proposes a motion compensation scheme. Moreover, the compensation scheme is applied to an improved Frequency Scaling Algorithm (FSA) for FMCW forward looking SAR with linear array antennas. Finally, the compensation scheme is verified using simulations.
{"title":"Motion Compensation for Airborne Forward Looking Synthetic Aperture Radar with Linear Array Antennas: Motion Compensation for Airborne Forward Looking Synthetic Aperture Radar with Linear Array Antennas","authors":"Yingjie Zhang, Yanping Wang, W. Tan, W. Hong","doi":"10.3724/SP.J.1300.2013.20067","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.20067","url":null,"abstract":": Combined with Frequency-Modulated Continuous-Wave (FMCW) technology, airborne forward-looking Synthetic Aperture Radar (SAR) with linear array antennas can obtain the images in front of an aircraft, while having the advantages of FMCW radar such as small size and lightweight. Moreover, it is suitable for installation on platforms such as helicopters and small unmanned aerial vehicles. In practice, motion compensation for forward-looking SAR with linear array antennas is one of the key problems to obtaining the images in front of aircraft. This paper uses linear array antennas to analyses the influence of motion error in aircraft on an echo model based on the geometry of forward looking SAR, with linear array antennas, and proposes a motion compensation scheme. Moreover, the compensation scheme is applied to an improved Frequency Scaling Algorithm (FSA) for FMCW forward looking SAR with linear array antennas. Finally, the compensation scheme is verified using simulations.","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"35 1","pages":"168-179"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70074216","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}
Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.20095
Xue-lian Zhong, Ren-yuan Chen, Ran Yang, Tao Wu
Due to the poor accuracy of navigation systems, deviations of the order of centimeters between the real and measured trajectories, called residual motion errors, frequently occur in SAR images. For airborne SAR systems with very high resolution and airborne repeat-pass SAR interferometry, the residual motion errors must be estimated and compensated. Multi-squint Technique with Point Targets (MTPT) is able to estimate the residual motion errors for an individual SAR image, but errors in the platform velocity and the slant range will deteriorate the accuracy of the method. In this paper, we validate this by performing detailed analysis of the velocity and slant range to residual motion error estimation using both simulated and real SAR data. It is also shown that MTPT is able to estimate the errors in the velocity and slant range, and it is sensitive to the phase error. Therefore, it is advised that the errors in the velocity and slant range should be removed using other precise methods before
{"title":"Two Factors Influencing Residual Motion Estimation in Airborne SAR Images with MTPT: Two Factors Influencing Residual Motion Estimation in Airborne SAR Images with MTPT","authors":"Xue-lian Zhong, Ren-yuan Chen, Ran Yang, Tao Wu","doi":"10.3724/SP.J.1300.2013.20095","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.20095","url":null,"abstract":"Due to the poor accuracy of navigation systems, deviations of the order of centimeters between the real and measured trajectories, called residual motion errors, frequently occur in SAR images. For airborne SAR systems with very high resolution and airborne repeat-pass SAR interferometry, the residual motion errors must be estimated and compensated. Multi-squint Technique with Point Targets (MTPT) is able to estimate the residual motion errors for an individual SAR image, but errors in the platform velocity and the slant range will deteriorate the accuracy of the method. In this paper, we validate this by performing detailed analysis of the velocity and slant range to residual motion error estimation using both simulated and real SAR data. It is also shown that MTPT is able to estimate the errors in the velocity and slant range, and it is sensitive to the phase error. Therefore, it is advised that the errors in the velocity and slant range should be removed using other precise methods before","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"2 1","pages":"180-186"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70074759","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}
Pub Date : 2013-12-27DOI: 10.3724/SP.J.1300.2013.13001
Yongcai Liu, Wen Wang, Xiaoyi Pan, D. Dai
{"title":"Effective Region of Active Decoy Jamming to SAR Based: Effective Region of Active Decoy Jamming to SAR Based","authors":"Yongcai Liu, Wen Wang, Xiaoyi Pan, D. Dai","doi":"10.3724/SP.J.1300.2013.13001","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.13001","url":null,"abstract":"","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"6 1","pages":"46-53"},"PeriodicalIF":0.0,"publicationDate":"2013-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70073622","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}
Pub Date : 2013-06-01DOI: 10.3724/SP.J.1300.2013.20080
Liu Xiao-ming, Wen Gong-jian, Zhong Jin-rong
② (61302 PLA Troops, Beijing 100016, China) Abstract: In this paper, we present the methods of parametrically reconstructing the position of a 3D scattering center model of the targets from SAR images for a target recognition application. First, a framework for reconstructing the 3D position of the targets from the SAR images is proposed. Then, a method that uses the parameters obtained from the scattering center of the targets from the SAR images is used for reconstructing the 3D scattering center model. Finally, the proposed methods are confirmed using the simulated data.
{"title":"Methods for Parametrically Reconstructing Position of 3D Scattering Center Model of Targets from SAR Images","authors":"Liu Xiao-ming, Wen Gong-jian, Zhong Jin-rong","doi":"10.3724/SP.J.1300.2013.20080","DOIUrl":"https://doi.org/10.3724/SP.J.1300.2013.20080","url":null,"abstract":"② (61302 PLA Troops, Beijing 100016, China) Abstract: In this paper, we present the methods of parametrically reconstructing the position of a 3D scattering center model of the targets from SAR images for a target recognition application. First, a framework for reconstructing the 3D position of the targets from the SAR images is proposed. Then, a method that uses the parameters obtained from the scattering center of the targets from the SAR images is used for reconstructing the 3D scattering center model. Finally, the proposed methods are confirmed using the simulated data.","PeriodicalId":37701,"journal":{"name":"Journal of Radars","volume":"2 1","pages":"187-194"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70074568","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}
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