Download or read book An Investigation of Space Time Adaptive Processing With Regard to Minimum Detectable Velocity written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted comparing the performance of various adaptive processing algorithms with regard to the detection of slow moving targets in ground clutter. The measure of performance was minimum detectable velocity. Algorithms studied included fully adaptive Space-Time Adaptive Processing (STAP) as well as several reduced dimensional adaptive processing algorithms such as Adaptive Displaced Phase Centered Array (ADPCA) processing. The analysis was performed by means of computer simulation. The relative performance of the various algorithms and the relation to number of degrees of freedom is discussed.
Download or read book Knowledge Based Space time Adaptive Processing written by Geeta Seth and published by . This book was released on 2003 with total page 164 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 Computational Requirements of the Beam space Post doppler Space Time Adaptive Processing Algorithm written by Peter M. Musial and published by . This book was released on 2001 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Time Adaptive Processing STAP for Low Sample Support Applications written by and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Airborne radar Space-Time Adaptive Processing (STAP) in a heterogeneous, target-rich environment is addressed. An efficient Kalman Filter implementation of the normalized form of the Parametric Adaptive Matched Filter (NPAMF) is introduced and shown to perform well against a detailed simulation of a site-specific, dense-target environment, Ground Moving Target Indication (GMTI) scenario. The number of secondary data range cells in a Coherent Processing Interval (CPI) required by NPAMF is much smaller than the product of spatial channels and pulses and, thus, NPAMF is attractive for low sample support applications. Other promising methods for low sample support applications are introduced and studied, as well. These include a Generalized Likelihood Ratio Test (GLRT)-based PAMF (ParaGLRT) shown to perform about as well as the matched filter when used in combination with Multiple Pass Processing (MPP), Sub-OP I Smoothing and a GLRT variant called Severely Non homogeneous Interference Processing (SNIP). These methods are shown also to perform much better than conventional STAP methods such as Joint Domain Localized (JDL). An optimized variant of MPP called T-SNIP (the "T" is for "target-rich environment") is introduced, as well. Beam space variants of the above methods also are evaluated and found to require less processing time than element space counterparts while performing at least as well.
Download or read book Space Based Radar written by S Unnikrishna Pillai and published by McGraw Hill Professional. This book was released on 2008-01-10 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First Comprehensive Guide to the Principles, Design Methods, and Applications of Space Based Radar Turn to Space Based Radar for authoritative information on the latest developments in Space Based Radar (SBR), covering fundamental principles, cutting-edge design methods, and several new applications. This SBR guide focuses on clutter and target data generation from an SBR platform, and on Space Time Adaptive Processing (STAP) to enhance the target detection and the clutter cancellation capabilities of the radar system. Designed to save you hours of research time and effort, this one-stop resource explores the full range of SBR topics, including SBR footprint and range foldover phenomenon...Doppler shift that accounts for Earth's rotation...terrain modeling...STAP algorithms for enhanced target detection...and much more. Packed with over 250 full-color illustrations, Space Based Radar features: Complete coverage of the technical issues associated with SBR and their impact on system performance A CD containing all of the book's illustrations, equations, and samples; plus more than 250 PowerPoint slides for self-study or lectures Inside This Pioneering SBR Sourcebook • Introducing Space Based Radar • The Conics • Two Body Orbital Motion and Kepler's Laws • SBR Kinematics • Space Time Adaptive Processing for Space Based Radar • Performance Analysis Using Cramer-Rao Bounds • Waveform Diversity
Download or read book Space time Adaptive Processing for Radar written by J. R. Guerci and published by Artech House. This book was released on 2003 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative, leading-edge resource gives you a comprehensive overview of sample rate conversion (SRC) and its applications in software configurable radios. The book helps you understand the limits of feasible systems for sample rate conversion, as well as the limits of interpolation. You get sound advice on selecting the appropriate types of SRC for specific applications, and assistance in handling the trade-off between hardware complexity and the clock rate of a system. From an introduction to software radio and a refresher on the fundamentals of sampling and sample rate conversion, to discussions on block signal processing and well-known and novel structures for sample rate conversion, the book offers you practical guidance that enables you to quickly find solutions for your challenging projects in the field. This first-of-its-kind reference concludes with a list of questions that - when answered - helps to design a system for sample rate conversion. Over 890 equations and 90 illustrations support key topics throughout the book.
Download or read book Ionospheric Scintillation Effects on a Space Based Foliage Penetration Ground Moving Target Indication Radar written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides the results of a brief study of the possible effects of ionospheric scintillation on a space-based, foliage-penetration (FOPEN), ground moving-target indication (GMTI) radar operating in the ultrahigh-frequency (UHF) band. The results of publicly available data and analyses are applied to a specific strawman FOPEN space-based radar (SBR) system operating from low-Earth orbit. Performance degradations due to ionospheric scintillation and a combination of ionospheric scintillation and internal clutter motion caused by wind are calculated for a 3 m/s target minimum detectable velocity (MDV) at 15-deg grazing, point parameters felt to be minimally acceptable for an operational system. Space-time adaptive processing (STAP) is used to provide the clutter rejection necessary for successful performance. Implications of ionospheric scintillation for synthetic aperture-based GMTI processing are also discussed.
Download or read book Advanced Signal Processing written by Stergios Stergiopoulos and published by CRC Press. This book was released on 2017-09-29 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover the Applicability, Benefits, and Potential of New Technologies As advances in algorithms and computer technology have bolstered the digital signal processing capabilities of real-time sonar, radar, and non-invasive medical diagnostics systems, cutting-edge military and defense research has established conceptual similarities in these areas. Now civilian enterprises can use government innovations to facilitate optimal functionality of complex real-time systems. Advanced Signal Processing details a cost-efficient generic processing structure that exploits these commonalities to benefit commercial applications. Learn from a Renowned Defense Scientist, Researcher, and Innovator The author preserves the mathematical focus and key information from the first edition that provided invaluable coverage of topics including adaptive systems, advanced beamformers, and volume visualization methods in medicine. Integrating the best features of non-linear and conventional algorithms and explaining their application in PC-based architectures, this text contains new data on: Advances in biometrics, image segmentation, registration, and fusion techniques for 3D/4D ultrasound, CT, and MRI Fully digital 3D/ (4D: 3D+time) ultrasound system technology, computing architecture requirements, and relevant implementation issues State-of-the-art non-invasive medical procedures, non-destructive 3D tomography imaging and biometrics, and monitoring of vital signs Cardiac motion correction in multi-slice X-ray CT imaging Space-time adaptive processing and detection of targets interference-intense backgrounds comprised of clutter and jamming With its detailed explanation of adaptive, synthetic-aperture, and fusion-processing schemes with near-instantaneous convergence in 2-D and 3-D sensors (including planar, circular, cylindrical, and spherical arrays), the quality and illustration of this text’s concepts and techniques will make it a favored reference.
Download or read book Principles of Space time Adaptive Processing written by Richard Klemm and published by IET. This book was released on 2002 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This is a systematic introduction to MTI (moving target indication) system design for use in the fields of earth observation, surveillance and reconnaisance, with particular regard to the suppression of clutter returns. Coverage includes signal processing, clutter models, array processinig theory, adapted linear arrays, non-linear antenna configurations, circular arrays, space-frequency techniques, and clutter suppression jamming conditions. This book is a follow up to the author's successful first book on STAP.
Download or read book Applications of Space Time Adaptive Processing written by Richard Klemm and published by Univ. Press of Mississippi. This book was released on 2004-08-13 with total page 976 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 RT STAP Real time Space time Adaptive Processing Benchmark written by Kenneth C. Cain and published by . This book was released on 1997 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Knowledge Base Applications to Adative Space Time Processing Volume 2 Airborne Radar Filtering written by and published by . This book was released on 2001 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many variations of space-time adaptive processing (STAP) that have been proposed since as far back as the 1960s. Practically all of the variations can be grouped into eight general methods. These methods are described in this report. An interesting discussion on the relative merits of the methods and of STAP in general is also included. Contentions are backed up by results from applying STAP to measured data. The merits identified in this report are used later (Volume III) to derive rules for a knowledge-based space-time adaptive processing system.
Download or read book RT STAP Real Time Space Time Adaptive Processing Benchmark written by Kenneth C. Cain and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a specification of the RT_STAP benchmark for evaluating the application of scalable high performance computers to the real-time implementation of space-time adaptive processing (STAP) techniques on embedded platforms. STAP is an adaptive processing technique used to support clutter and interference cancellation in airborne radars. The RT_STAP benchmark is an example of a compact application benchmark that uses a real time design-to-specification methodology. The scalability study outlined in the RT_STAP benchmark varies the sophistication and computational complexity of the adaptive algorithms to be implemented. The benchmark provides hard, medium, and easy benchmark cases based upon three post-Doppler adaptive processing algorithms: higher-order Doppler-factored STAP, first-order Doppler-factored STAP, and post-Doppler adaptive Displaced Phase Center Antenna (CDPCA).
Download or read book Sparse Array Antennas and Clutter Suppression Processing for Space Based Radars written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Future intelligence, surveillance, and reconnaissance (ISR) missions for the US Air Force are expected to require data from space-based radar (SBR) systems. Several types of data will be needed, including ground-moving target indicator (GMTI) and airborne-moving-target indicator (AMTI) data. SBR design concepts that are best able to provide these different types of data are still evolving. Space-array antennas and special signal processing techniques are shown here to be capable of achieving useful performance for both GMTI and AMTl applications. Sparse-array patterns for elements at arbitrary (but known) positions are computed by summing the complex vector fields that are functions of the path length difference of each element from the center of the array for azimuth and elevation steer directions of interest. The narrow beamwidths achievable with sparse arrays do not change the clutter power-spectral-density (Cpsd) significantly because the reduced clutter power from each range-azimuth resolution cell is offset by the correspondingly smaller Doppler spread in the cell. Thus the minimum detectable velocity (MDV) of the moving target is controlled mostly by the pattern of the sub-arrays that are used as elements for the receiving array. For this reason, additional space-time adaptive processing (STAP) must be performed to achieve operationally useful GMTI and AMTI results. A new technique, called main-beam phase compensated aperture (MPCA) processing, is described and evaluated in this paper. When combined with the beamforming processing associated with a phased-array antenna in any configuration, MPCA is shown to result in estimates of SBR performance that are very promising.
Download or read book Space Time Adaptive Processing Ref written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
