2007 IEEE Radar Conference最新文献_第8页

InSAR Remote Sensing Over Decorrelating Terrains: Persistent Scattering Methods 非相关地形上InSAR遥感:持续散射方法

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374307

H. Zebker, P. Shankar, A. Hooper

{"title":"InSAR Remote Sensing Over Decorrelating Terrains: Persistent Scattering Methods","authors":"H. Zebker, P. Shankar, A. Hooper","doi":"10.1109/RADAR.2007.374307","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374307","url":null,"abstract":"Interferometric synthetic aperture radar, or InSAR, is a visual geodetic technique permitting detailed mapping of motion over wide areas. InSAR has been limited to regions without much vegetation, which shields the ground from the radar signals and contributes random motions to the observed deformation. The resulting \"decorrelation\" of the echoes precludes accurate displacement measurements in these areas. Decorrelation also occurs in interferograms with acquisitions separated too far in the sky. Yet certain points, denoted persistent scatterers, in a radar image are stable, do not decorrelate, and form a network of fiducial points that allow measurements in otherwise poor-quality interferograms. We have generalized an algorithm to find networks of stable points in natural terrain, rather than in urban areas, and applied the method to spaceborne satellite data. Using modern information theory to optimize persistent scatterer detection, we can now find many, many more such points than previously possible. We have applied this improved algorithm to the San Francisco Bay segments of the San Andreas and Hayward faults, and in both cases find that a large number of stable points are seen in the vegetated areas that have to date resisted InSAR analysis. Our method of integrating information theoretic estimation and detection theory to all parts of the method, improves the identification, filtering, and phase unwrapping of the observations. Identification of stable true-ground scattering points permits mapping of subtle surface motions and deformations and also of \"bare-Earth\" topography.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133616557","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: 22

Adapting the Clean Deconvolver and Clean Detector to Doppler Uncertainty 适应多普勒不确定度的Clean反卷积器和Clean检测器

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374236

T. Foreman

引用次数: 3

A Comprehensive Review of Quasi-Orthogonal Waveforms 准正交波形的综合评述

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374202

B. Keel, T. Heath

引用次数: 19

Time-varying autoregressive adaptive filtering for airborne radar applications 机载雷达时变自回归自适应滤波

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374296

Y. Abramovich, M. Rangaswamy, B.A. Johnson, P. Corbell, N. Spencer

引用次数: 6

Factored Multiplicative Mismatched Filters for Compound Barker Codes 复合巴克码的因子乘法不匹配滤波器

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374276

I. Sarkar, A. Fam

引用次数: 9

A 94 GHz OFDM Frequency Scanning Radar for Autonomous Landing Guidance 用于自主着陆制导的94 GHz OFDM扫描雷达

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374222

K. V. Caekenberghe, K. Brakora, Kamal Sarabandi

引用次数: 11

S- and X-Band Radar Transmit/Receive Module Overview S波段和x波段雷达发射/接收模块概述

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374347

B. Kopp

引用次数: 9

Ionospheric Propagation Effects on Ground and Space Based Radars 电离层传播对地面和空间雷达的影响

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374341

D. Knepp, M. Hausman

引用次数: 2

Solution to Linear Inverse Problem with MMV having Linearly Varying Sparsity Structure 具有线性变稀疏结构的MMV线性逆问题的解

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374287

Y. Zhang, Q. Wan, W.L. Yang

{"title":"Solution to Linear Inverse Problem with MMV having Linearly Varying Sparsity Structure","authors":"Y. Zhang, Q. Wan, W.L. Yang","doi":"10.1109/RADAR.2007.374287","DOIUrl":"https://doi.org/10.1109/RADAR.2007.374287","url":null,"abstract":"In this paper, an extension to current algorithms dealing with inverse problem is considered. In stead of that invariant sparse profile of the solution vectors is concerned, we mainly focus on the problem with linearly varying sparse structures. Two methods are proposed to solve the linear inverse problem with the unknown linearly varying sparse structure by using MMV. In order to adapt to the linearly varying sparse profile of the solutions, one method, named LMMV (Linearly-MMV), introduces a new parameter and makes use of circular shift matrix to convert the new problem to the one with invariant sparse profile and new iterative algorithm is derived in principle of existing methods. Another method, named WMMV (Wide-MMV), attributes the change of the sparse structure of the solution vectors to the inaccuracy caused by the chosen dictionary and combines several rows of the dictionary together, which is equivalent to find a lower dimensional sparse solution and in turn gives a more robust algorithm. Numerical experiments with random dictionaries and applications to direction-of-arrival (DOA) estimation verify the validation of the proposed two methods and their superiority to some existing methods is illustrated.","PeriodicalId":367078,"journal":{"name":"2007 IEEE Radar Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127712126","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

Hitchhiking bistatic radar: principles, processing and experimental findings 搭便车双基地雷达:原理、加工及实验结果

2007 IEEE Radar Conference Pub Date : 2007-04-17 DOI: 10.1109/RADAR.2007.374271

T. Johnsen, K. E. Olsen

引用次数: 13