Download or read book Statistics of SAR Interferograms with Application to Moving Target Detection written by Christoph H. Gierull and published by . This book was released on 2001 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of SAR Clutter and Its Applications to Land and Ocean Observations written by Gui Gao and published by Springer. This book was released on 2019-01-29 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses statistical modeling of single- and multi-channel synthetic aperture radar (SAR) images and the applications of these newly developed models in land and ocean monitoring, such as target detection and terrain classification. It is a valuable reference for researchers and engineers interested in information processing of remote sensing, radar signal processing, and image interpretation.
Download or read book Moving Target Detection with Along track SAR Interferometry a Theoretical Analysis written by Christoph H. Gierull and published by Defence R&D Canada - Ottawa. This book was released on 2002 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adaptive Multi channel ATI SAR for Moving Target Detection written by and published by . This book was released on 2006 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Along-track interferometry (ATI) is a Synthetic Aperture Radar (SAR) technique for moving target detection and estimation of radial velocities. The conventional ATI-SAR involves the acquisition of data from two channels that are separated in the direction of flight path. While the stationary targets share the same signature in the SAR images of these two channels, the moving targets exhibit phase shifts between the two SAR images. Thus, we can identify the moving targets by examining the phase information of the SAR interferogram. For a multi-channel SAR system, SAR interferogram cannot fully exploit the phase information of all channels. In this dissertation, we examine the possibility of generating the moving target indication (MTI) statistic by developing a multi-channel ATI-SAR processing method. The merits of this method are vigorously studied using both simulated data and real data from Multi-Channel Airborne Radar Measurement (MCARM) system. The method we proposed is not feasible without the full calibration of all channels. To deal with this issue, we begin with a simple procedure called global calibration, which is mainly adopted to compensate the physical distance between the two channels in the along-track domain. It is known that the MTI ability of ATI-SAR is substantially affected by the drift angle of the moving platform. As an integral part of this dissertation, we will discuss the effect of drift angle from a STAP point of view. We will also introduce a STAP approach to estimate platform velocity as well as drift angle. The estimation of drift angle does not account for various sources of other errors. To fine calibrate these errors, including which are caused by the drift angle, a two-dimensional (2D) adaptive filtering algorithm called signal subspace processing (SSP) is introduced. The SSP algorithm is applied in the SAR image domain to address the spatially-varying nature of the calibration errors. The SSP algorithm is too time-consuming for a practical radar system. In the final part of this dissertation, we will discuss the parallelization of the proposed multi-channel ATI-SAR processing method and its implementation on high performance computing clusters (HPCC).
Download or read book Study on Ground Moving Target Indication and Imaging Technique of Airborne SAR written by Jian Yang and published by Springer. This book was released on 2017-01-09 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a detailed analysis of the signal model of the moving target, this thesis focuses on the theories and applications of ground moving target indicator (GMTI) and ground moving target imaging (GMTIm) algorithms in synthetic aperture radar/ ground moving target indicator (SAR/GMTI mode), wide-area surveillance ground moving target indication (WAS-GMTI) mode and frequency modulated continuous wave synthetic aperture radar (FMCW SAR) systems. The proposed algorithms can not only indicate and image fast-moving targets, but are also effective in the context of slow-moving target processing. The system design scheme combines the mechanical scanning mode and the airborne SAR system, while the azimuth moving target indication algorithm employs the additional range walk migration induced by FMCW SAR systems. In addition, the non-ideal errors that deteriorate the performance of GMTIm algorithms in real SAR data processing are discussed, and suitable compensation methods are provided.>
Download or read book Advances in SAR Sensors Methodologies and Applications written by Timo Balz and published by MDPI. This book was released on 2018-10-22 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Advances in SAR: Sensors, Methodologies, and Applications" that was published in Remote Sensing
Download or read book SAR Slow moving Target Detection written by Stuart Alan Kennedy and published by . This book was released on 2015 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Along Track Interferometry Synthetic Aperture Radar ATI SAR Techniques for Ground Moving Target Detection written by and published by . This book was released on 2006 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional along track interferometric synthetic aperture radar, ATI-SAR, approaches can detect targets with very low radial speeds, but their false alarm rate is too high to be used in ground moving target indication radars. The report proposed a dual-threshold approach that combines the conventional interferometric phase detection and the SAR image amplitude detection in order to reduce the false alarm rate. The concept and performance of the dual-threshold approach were illustrated using the Jet Propulsion Laboratory AirSAR ATI data. A simple two-dimensional blind calibration procedure was proposed to correct the group phase shift induced by the platform's crab angle. MATLAB programs for demonstrating the proposed approach were included.
Download or read book Academic Press Library in Signal Processing written by Fulvio Gini and published by Academic Press. This book was released on 2013-09-10 with total page 1389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume, edited and authored by world leading experts, gives a review of the principles, methods and techniques of important and emerging research topics and technologies in communications and radar engineering. With this reference source you will: Quickly grasp a new area of research Understand the underlying principles of a topic and its application Ascertain how a topic relates to other areas and learn of the research issues yet to be resolved Quick tutorial reviews of important and emerging topics of research in array and statistical signal processing Presents core principles and shows their application Reference content on core principles, technologies, algorithms and applications Comprehensive references to journal articles and other literature on which to build further, more specific and detailed knowledge Edited by leading people in the field who, through their reputation, have been able to commission experts to write on a particular topic
Download or read book Estimation of the Velocity Vector of Moving Targets from SAR Images written by Andrea Radius and published by LAP Lambert Academic Publishing. This book was released on 2014-05 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The SAR (Synthetic Aperture Radar) is a radar which acquires synthesized images with high resolution independently from the weather conditions; for these reasons the SAR plays an important role in remote sensing, when high resolution and temporal continuity are required. In the past, SAR systems main goals were the study of the interaction between electromagnetic waves and the Earth surface. Quickly the intrinsic capability of this instrument to analyze the dynamic characteristics of the observed objects and the changes of the requirements of the users made the SAR particularly fit for moving target detection in commercial, surveillance and strategic context. The development of recent multi-channel SAR systems enables the development of sophisticated techniques for the surveillance of moving objects, making this field very active research area. This book addresses this particular problem by presenting an analysis of the effects of the moving targets in SAR images and by proposing two methodologies to estimate the velocity vector of objects in motion.
Download or read book Geoscience and Remote Sensing written by Pei-Gee Ho and published by BoD – Books on Demand. This book was released on 2009-10-01 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing is collecting and interpreting information on targets without being in physical contact with the objects. Aircraft, satellites ...etc are the major platforms for remote sensing observations. Unlike electrical, magnetic and gravity surveys that measure force fields, remote sensing technology is commonly referred to methods that employ electromagnetic energy as radio waves, light and heat as the means of detecting and measuring target characteristics. Geoscience is a study of nature world from the core of the earth, to the depths of oceans and to the outer space. This branch of study can help mitigate volcanic eruptions, floods, landslides ... etc terrible human life disaster and help develop ground water, mineral ores, fossil fuels and construction materials. Also, it studies physical, chemical reactions to understand the distribution of the nature resources. Therefore, the geoscience encompass earth, atmospheric, oceanography, pedology, petrology, mineralogy, hydrology and geology. This book covers latest and futuristic developments in remote sensing novel theory and applications by numerous scholars, researchers and experts. It is organized into 26 excellent chapters which include optical and infrared modeling, microwave scattering propagation, forests and vegetation, soils, ocean temperature, geographic information , object classification, data mining, image processing, passive optical sensor, multispectral and hyperspectral sensing, lidar, radiometer instruments, calibration, active microwave and SAR processing. Last but not the least, this book presented chapters that highlight frontier works in remote sensing information processing. I am very pleased to have leaders in the field to prepare and contribute their most current research and development work. Although no attempt is made to cover every topic in remote sensing and geoscience, these entire 26 remote sensing technology chapters shall give readers a good insight. All topics listed are equal important and significant.
Download or read book The Millimeter Wave Synthetic Aperture Radar Technology written by Hui Wang and published by Springer Nature. This book was released on with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radar Interferometry written by Ramon F. Hanssen and published by Springer Science & Business Media. This book was released on 2001-04-30 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the product of five and a half years of research dedicated to the und- standing of radar interferometry, a relatively new space-geodetic technique for m- suring the earth’s topography and its deformation. The main reason for undertaking this work, early 1995, was the fact that this technique proved to be extremely useful for wide-scale, fine-resolution deformation measurements. Especially the interf- ometric products from the ERS-1 satellite provided beautiful first results—several interferometric images appeared as highlights on the cover of journals such as Nature and Science. Accuracies of a few millimeters in the radar line of sight were claimed in semi-continuous image data acquired globally, irrespective of cloud cover or solar illumination. Unfortunately, because of the relative lack of supportive observations at these resolutions and accuracies, validation of the precision and reliability of the results remained an issue of concern. From a geodetic point of view, several survey techniques are commonly available to measure a specific geophysical phenomenon. To make an optimal choice between these techniques it is important to have a uniform and quantitative approach for describing the errors and how these errors propagate to the estimated parameters. In this context, the research described in this book was initiated. It describes issues involved with different types of errors, induced by the sensor, the data processing, satellite positioning accuracy, atmospheric propagation, and scattering character- tics. Nevertheless, as the first item in the subtitle “Data Interpretation and Error Analysis” suggests, data interpretation is not always straightforward.
Download or read book IGARSS written by and published by . This book was released on 2003 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Space Time Adaptive Processing written by Richard Klemm and published by IET. This book was released on 2004-08-13 with total page 971 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text discusses various applications of space-time adaptive processing, including applications in OTH-radar, ground target tracking, STAP in real world clutter environments, jammer cancellation, superresolution, active sonar, seismics and communications. It is divided into two parts: the first dealing with the classical adaptive suppression of airborne and spacebased radar clutter, and the second comprising of miscellaneous applications in other fields such as communications, underwater sound and seismics.
Download or read book IEEE International Geoscience and Remote Sensing Symposium Proceedings written by and published by . This book was released on 2003 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Processing of SAR Data written by Achim Hein and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for students, remote sensing specialists, researchers and SAR system designers, Processing of SAR Data shows how to produce quality SAR images. In particular, this practical reference presents new methods and algorithms concerning the interferometric processing of SAR data with emphasis on system and signal theory, namely how SAR imagery is formed, how interferometry SAR images are created, and a detailed mathematical description of different focussing algorithms. Starting with the processing basics and progressing to the final geo-coded SAR data product, the book describes the complete processing steps in detail. Algorithms based on the effects of side-looking geometry are developed to correct foreshortening, shadowing and layover.
