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Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)最新文献

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Combinatoric collaboration on Costas arrays and radar applications 科斯塔斯阵列和雷达应用的组合协作
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316432
J. K. Beard, K. Erickson, M. Monteleone, M. Wright, J. Russo
{"title":"Combinatoric collaboration on Costas arrays and radar applications","authors":"J. K. Beard, K. Erickson, M. Monteleone, M. Wright, J. Russo","doi":"10.1109/NRC.2004.1316432","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316432","url":null,"abstract":"Costas arrays are permutation matrices that also provide a frequency indexing sequence that permits at most one coincident tone in cross-correlations of FSK waveforms. As such, they have obvious application as frequency indexing sequences in radar and communications when long codes with bounded autocorrelation are required or when Doppler is a significant portion of the transmitted bandwidth. All Costas arrays for orders less than 25 are known, with those for N=24 disclosed in the paper. Higher orders are found through number-theoretic generators and partial searches.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129587002","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: 32
Simultaneous use of multiple pseudo random noise codes in multistatic CW radar 多重伪随机噪声码在多基地连续波雷达中的同时使用
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316433
T. Johnsen, Karl, Olsen, S. Johnsrud, R. Skjerpeng
{"title":"Simultaneous use of multiple pseudo random noise codes in multistatic CW radar","authors":"T. Johnsen, Karl, Olsen, S. Johnsrud, R. Skjerpeng","doi":"10.1109/NRC.2004.1316433","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316433","url":null,"abstract":"In multistatic continuous wave radar, the choice of codes and frequencies used for transmission has a strong influence on detection and ease of parameter extraction. The paper describes the various effects of using single and multiple codes in a number of separated transmitters, either with the same or separated carrier frequencies. To visualize some of the results, synthetic radar data have been generated and used in the processing.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125367406","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: 13
Analysis of advanced data association techniques for ASDE radar ASDE雷达先进数据关联技术分析
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316408
J. García, J. Besada, G. de Miguel, J. M. Molina, A. Berlanga
{"title":"Analysis of advanced data association techniques for ASDE radar","authors":"J. García, J. Besada, G. de Miguel, J. M. Molina, A. Berlanga","doi":"10.1109/NRC.2004.1316408","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316408","url":null,"abstract":"The paper analyses and evaluates the application of different techniques to the data association problem for ASDE (airport surface detection equipment) radar. Data association for this sensor requires the removal of the classical one-to-one constraints and should allow tracks to be updated by sets of blobs. Different innovative alternatives, based on recent advanced techniques, have been formulated and tried to solve this problem in complex scenarios. Simulation results show the capabilities achieved in terms of tracking robustness, accuracy and required computation.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125419901","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
Design of an ultra high-speed all-optical analog-to-digital converter 超高速全光模数转换器的设计
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316479
Xiaobo Hou, A. Daryoush, W. Rosen, H. Burstyn, P. Zalud
{"title":"Design of an ultra high-speed all-optical analog-to-digital converter","authors":"Xiaobo Hou, A. Daryoush, W. Rosen, H. Burstyn, P. Zalud","doi":"10.1109/NRC.2004.1316479","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316479","url":null,"abstract":"An all-optical analog-to-digital converter capable of sampling at 50 GS/s is described. The ADC works in the spectral domain, unlike the other all-optical or hybrid methods. The RF signal is sampled by electro-optically steerable gratings and quantized by a set of detectors with scalable apertures. Low timing jitter is provided by a mode-locked laser.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124299480","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: 6
Optimal invariant test in coherent radar detection with unknown parameters 未知参数相干雷达探测的最优不变性检验
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316499
M. Derakhtian, M. Nayebi, A. Tadaion
{"title":"Optimal invariant test in coherent radar detection with unknown parameters","authors":"M. Derakhtian, M. Nayebi, A. Tadaion","doi":"10.1109/NRC.2004.1316499","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316499","url":null,"abstract":"We propose a new detector to test the presence of a radar signal with unknown parameters in unknown variance additive white Gaussian noise. Uniformly most powerful invariant (UMPI) tests and unitary filter banks are combined in a new detector. This problem does not fit the linear model due to the unknown Doppler frequency. It is found that the UMPI test does not exist for such a problem. In our detector, we apply an appropriate linear transformation, which is a unitary filter bank, to the concerned radar signal and the problem is converted to the canonical form. Since the UMPI test does exist for the canonical form, then we derive an optimal invariant test for our problem.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114474787","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: 5
Adaptive beam-domain processing for space-based radars 天基雷达自适应波束域处理
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316427
Y. Zhang, A. Hajjari, L. Adzima, B. Himed
{"title":"Adaptive beam-domain processing for space-based radars","authors":"Y. Zhang, A. Hajjari, L. Adzima, B. Himed","doi":"10.1109/NRC.2004.1316427","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316427","url":null,"abstract":"This paper discusses beam-domain space-time adaptive processing (STAP) algorithms for a low-Earth-orbit (LEO) space-based radar (SBR). The performance of the subarray-based joint-domain-localized (JDL) algorithm is first examined for various processor parameters. Then, a combined beam-domain STAP algorithm approach that combines JDL with difference (/spl Delta/) beams is presented. It is shown that the combined JDL-/spl Delta/ algorithms offer less system complexity and yield performance similar to that of JDL that uses higher degrees of freedom. It is also shown that the Earth's rotation induces a crab angle to the platform, which makes the clutter range-Doppler spectrum vary with range. Illustrative examples show that this crab angle severely degrades the signal-to-interference-plus-noise ratio (SINR), thereby reducing the minimum detectable velocity (MDV) of STAP systems.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124893113","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
New algorithms for widefield SAR image formation 广角SAR图像形成的新算法
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316392
W. Carrara, R. Goodman, M.A. Ricoy
{"title":"New algorithms for widefield SAR image formation","authors":"W. Carrara, R. Goodman, M.A. Ricoy","doi":"10.1109/NRC.2004.1316392","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316392","url":null,"abstract":"The widefield polar format algorithm, the Stolt polar algorithm, and the differential Doppler algorithm use variations of a new along-track alignment and formatting system (ATAFS) to generate fine-resolution images from synthetic aperture radar (SAR) data. ATAFS introduces a spatially variant modification of the SAR phase history storage format to remove the formatting inaccuracies of the conventional polar format algorithm and enables full image quality over large scenes without range curvature distortion or image defocus. These new algorithms are well-suited for processing fine resolution spotlight and ultra-wideband SAR data. Their image quality performance is comparable to that of the range migration algorithm (RMA). Unlike RMA, the new algorithms operate on data stabilized to a fixed reference point to remove the azimuth chirp (the Doppler bandwidth of the reference point) before it compromises processor efficiency.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130680667","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: 26
Enhancement of backprojection SAR imagery using digital spotlighting preprocessing 利用数字聚光灯预处理增强反投影SAR图像
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316395
L. Nguyen, M. Ressler, David C. Wong, M. Soumekh
{"title":"Enhancement of backprojection SAR imagery using digital spotlighting preprocessing","authors":"L. Nguyen, M. Ressler, David C. Wong, M. Soumekh","doi":"10.1109/NRC.2004.1316395","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316395","url":null,"abstract":"This paper examines signal processing methods for improving the fidelity of backprojection SAR imagery using a preprocessing method that suppresses Doppler aliasing as well as other side lobe artifacts that are introduced by the radar radiation pattern. The algorithm, known as digital spotlighting, imposes a filtering scheme on the azimuth-compressed SAR data, and manipulates the resultant spectral data to achieve a higher PRF to suppress the Doppler aliasing. The merits of the algorithm are studied using the ARL boom-SAR data.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123329266","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: 14
Maximum likelihood parameter estimation of multiple chirp signals by a new Markov chain Monte Carlo approach 用一种新的马尔可夫链蒙特卡罗方法估计多重啁啾信号的极大似然参数
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316487
Y. Lin, Y. Peng, X. Wang
{"title":"Maximum likelihood parameter estimation of multiple chirp signals by a new Markov chain Monte Carlo approach","authors":"Y. Lin, Y. Peng, X. Wang","doi":"10.1109/NRC.2004.1316487","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316487","url":null,"abstract":"In this paper, a novel method for estimating the parameters of multiple chirp signals in additive Gaussian white noise is proposed. The method combines a global optimization theorem with a new Markov chain Monte Carlo algorithm, called the simulated annealing one-variable-at-a-time random walk Metropolis-Hastings algorithm. It is a computationally modest implementation of maximum likelihood estimation and has no error propagation effect. Simulation results show that the proposed method can give good estimates for the unknown parameters, even when the parameters of the individual chirp signals are closely spaced and the Cramer-Rao lower bound can be attained even at low signal-to-noise ratio.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126883233","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: 13
Onboard FPGA-based SAR processing for future spaceborne systems 未来星载系统基于机载fpga的SAR处理
Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316388
C. Le, S. Chan, F. Cheng, W. Fang, M. Fischman, S. Hensley, R. Johnson, M. Jourdan, M. Marina, B. Parham, F. Rogez, P. Rosen, B. Shah, S. Taft
{"title":"Onboard FPGA-based SAR processing for future spaceborne systems","authors":"C. Le, S. Chan, F. Cheng, W. Fang, M. Fischman, S. Hensley, R. Johnson, M. Jourdan, M. Marina, B. Parham, F. Rogez, P. Rosen, B. Shah, S. Taft","doi":"10.1109/NRC.2004.1316388","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316388","url":null,"abstract":"We present a real-time high-performance and fault-tolerant FPGA-based hardware architecture for the processing of synthetic aperture radar (SAR) images in future spaceborne systems. In particular, we discuss the integrated design approach, from top-level algorithm specifications and system requirements, design methodology, functional verification and performance validation, down to hardware design and implementation.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130469969","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: 40
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