Download or read book An Adaptive Technique for Multiple Signal Detection and Identification written by John W Sammon (Jr) and published by . This book was released on 1967 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of detecting and identifying multiple signals which are corrupted by independent additive noise is mathematically formulated. It is explicitly assumed that (1) the epoch and time duration of the signals are known, (2) the statistics of the corrupting noise are known, (3) the number of signals and their individual shapes are not known, and (4) the a priori probabilities of the occurrence of the individual signals are not known. An adaptive technique is developed to determine (1) the number of signals, (2) the signal shapes, and (3) the relative frequency of each signal's occurrence. The adaptive procedure uses only the observations made at the receiver output. Computer simulated results are given for the case of Gaussian noise. These results clearly indicate that approximate detection and identification can be achieved adaptively. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Techniques for Adaptive Signal Detection written by Azer P. Shikhaliev and published by . This book was released on 2021 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: We provide new techniques for adaptive signal processing and signal detection, particularly as applied to the case of radar systems. We seek to detect the presence or absence of a signal in the presence of clutter and noise, which are modeled as random samples from a colored Gaussian distribution. The covariance matrix of this distribution is usually unknown, which presents a major challenge to the detection task. In the first approach we present, we utilize various structural assumptions on the unknown covariance matrix in order to obtain an improved estimate of it when few training samples are available. In the second approach, we propose two detectors which use white noise matched filtering. This second approach does not utilize the covariance matrix estimate for whitening, but still gives high-quality detection performance with a constant false alarm rate (CFAR) in low training data when the true covariance matrix condition number is low. In the third approach, we design adaptive detectors which make the assumption of spectral symmetry on the clutter and noise returns, meaning that their real and imaginary parts are assumed to be uncorrelated. This assumption enables the derivation of detectors with vastly improved detection performance as compared to those derived without this assumption. Finally, in the fourth approach we extend the spectral symmetry assumption to the case when no secondary data is available, and provide detectors which are still able to perform the detection task and maintain CFAR.
Download or read book Adaptive Signal Processing in Wireless Communications written by Mohamed Ibnkahla and published by CRC Press. This book was released on 2017-12-19 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive techniques play a key role in modern wireless communication systems. The concept of adaptation is emphasized in the Adaptation in Wireless Communications Series through a unified framework across all layers of the wireless protocol stack ranging from the physical layer to the application layer, and from cellular systems to next-generation wireless networks. This specific volume, Adaptive Signal Processing in Wireless Communications is devoted to adaptation in the physical layer. It gives an in-depth survey of adaptive signal processing techniques used in current and future generations of wireless communication systems. Featuring the work of leading international experts, it covers adaptive channel modeling, identification and equalization, adaptive modulation and coding, adaptive multiple-input-multiple-output (MIMO) systems, and cooperative diversity. It also addresses other important aspects of adaptation in wireless communications such as hardware implementation, reconfigurable processing, and cognitive radio. A second volume in the series, Adaptation and Cross-layer Design in Wireless Networks(cat no.46039) is devoted to adaptation in the data link, network, and application layers.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sequential Methods in Pattern Recognition and Machine Learning written by K.C. Fu and published by Academic Press. This book was released on 1968 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sequential Methods in Pattern Recognition and Machine Learning
Download or read book Computer Oriented Approaches to Pattern Recognition written by Meisel and published by Academic Press. This book was released on 1972-07-31 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer-Oriented Approaches to Pattern Recognition
Download or read book Adaptive Detection for Multichannel Signals in Non Ideal Environments written by Zeyu Wang and published by CRC Press. This book was released on 2024-06-14 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically presents adaptive multichannel signal detection in three types of non-ideal environments, including sample-starved scenarios, signal mismatch scenarios, and noise plus subspace interference environments. The authors provide definitions of key concepts, detailed derivations of adaptive multichannel signal detectors, and specific examples for each non-ideal environment. In addition, the possible future trend of adaptive detection methods is discussed, as well as two further research points – namely, the adaptive detection algorithms based on information geometry, and the hybrid approaches that combine adaptive detection algorithms with machine learning algorithms. The book will be of interest to researchers, advanced undergraduates, and graduate students in sonar, radar signal processing, and communications engineering.
Download or read book Data Analysis in Astronomy written by V. di Gesù and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: The international Workshop on "Data Analysis in Astronomy" was in tended to give a presentation of experiences that have been acqui red in data analysis and image processing, developments and appli cations that are steadly growing up in Astronomy. The quality and the quantity of ground and satellite observations require more so phisticated data analysis methods and better computational tools. The Workshop has reviewed the present state of the art, explored new methods and discussed a wide range of applications. The topics which have been selected have covered the main fields of interest for data analysis in Astronomy. The Workshop has been focused on the methods used and their significant applications. Results which gave a major contribution to the physical interpre tation of the data have been stressed in the presentations. Atten tion has been devoted to the description of operational system for data analysis in astronomy. The success of the meeting has been the results of the coordinated effort of several people from the organizers to those who presen ted a contribution and/or took part in the discussion. We wish to thank the members of the Workshop scientific committee Prof. M. Ca paccioli, Prof. G. De Biase, Prof. G. Sedmak, Prof. A. Zichichi and of the local organizing committee Dr. R. Buccheri and Dr. M.C. Macca rone together with Miss P. Savalli and Dr. A. Gabriele of the E. Majo rana Center for their support and the unvaluable part in arranging the Workshop.
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967-10 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adaptive Signal Processing written by Widrow and published by Pearson Education India. This book was released on 2016 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification And Suppression of Multiple Reflections in Seismic Prospecting written by Evgeniĭ Alekseevich Kozlov and published by VSP. This book was released on 1988-12 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph is concerned with the three main aspects of dealing with multiple reflections in seismic prospecting and aims to substantiate a set of new techniques for their more effective suppression. To increase the accuracy of the Earth's physical parameter estimates (1-D, 2-D and 3-D cases) earlier time intervals for seismic records are used in combination with the subtraction of predicted materials from target intervals in the course of seismic data inversion. The automated identification of multiple events on seismic records in the course of data interpretation is discussed with the aim of improving the reliability with which structural and stratigraphic traps can be located. In order to increase the signal to noise ratio modern techniques for the suppression of multiples (on either 2-D or 3-D records) based on the difference between propagation velocities of multiple and primary waves in the course of data processing are considered. The book provides a description of general concepts then focuses on the methodology of data processing and interpretation; including theory, computational algorithms, stability and noise-immunity considerations. Special attention is given to the practical implementation of the techniques proposed. Finally, using a large amount of both model and real data examples, the book illustrates how to improve the resultant seismic data by the use of developed multiple identification and suppression techniques in various geologic environments.
Download or read book Multivariate Personality Research written by Raymond Bernard Cattell and published by . This book was released on 1972 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial profiles on small industries sector written by and published by . This book was released on 1987 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1989 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multi Sensor Imaging and Fusion Methods Evaluations and Applications written by Zhiqin Zhu and published by Frontiers Media SA. This book was released on 2023-10-25 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Energy Power Generation Automation and Intelligent Technology written by Pengfei Gu and published by Springer Nature. This book was released on 2023-05-24 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of selected papers from the Seventh Symposium on Digital Instrumentation and Control Technology for Nuclear Power Plant, held online on January 11, 2023. The purpose of this symposium is to discuss inspection, test, certification and research for the software and hardware of Instrumentation and Control (I&C) systems in nuclear power plants (NPP), such as sensors, actuators and control system. It provides a platform of technical exchange and experience sharing for those broad masses of experts and scholars and nuclear power practitioners. At the same time, it also provides a platform for the combination of production, teaching and research in universities and enterprises to promote the safe development of nuclear power plant. Readers will encounter new ideas for realizing a more efficient and safer instrumentation and control system.
