Download or read book Target Discrimination classification Radar written by B. Jeffrey Skinner and published by . This book was released on 1995 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radar Target Discrimination Using Artificial Neural Networks written by Krishnan Theagarajan and published by . This book was released on 1992 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radar Target Discrimination Using Early time Responses written by Qing Li and published by . This book was released on 1995 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radar Target Discrimination Using Neural Networks written by Chang-Ying Tsai and published by . This book was released on 1995 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automated Radar Target Discrimination Using E pulse and S pulse Techniques written by Ponniah Ilavarasan and published by . This book was released on 1992 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Method for Discrimination of Radar Targets Using Complex Natural Resonances written by Eric P. Bohley and published by . This book was released on 1987 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: A prediction-correlation target discrimination algorithm using target complex natural resonances is investigated. The targets natural resonances are extracted from experimentally measured frequency domain scattering data. Scattering data were obtained from scale model targets measured in the ElectroScience Laboratory compact radar range facility. The targets used are models of three military ground vehicles. Signal processing required for the extraction of poles is described. The principles of the prediction-correlation algorithm are discussed and the algorithm is demonstrated for both noiseless data and data with additive white noise. Classification results are plotted for the targets at aspect angles of 0, 10, 20, 30, 60, and 90 degrees from nose on.
Download or read book Advancement of High Resolution Radar Polarimetry in Target Vs Clutter Detection Discrimination Classification written by Wolfgang M. Boerner and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Target Recognition Using Linear Classification of High Range Resolution Radar Profiles written by Ricardo A. Diaz and published by . This book was released on 2004-03-01 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Range Resolution (HRR) radar profiles map three-dimensional target characteristics onto one-dimensional signals that represent reflected radar intensity along target extent. In this thesis, second through fourth statistical moments are extracted from HRR profiles and input to Fisher Linear Discriminant (FLD) classifiers. An iterative classification process is applied that gradually minimizes required a priori knowledge about the target data. It is found that the second through fourth statistical moments of HRR profiles are useful features in the FLD classification of dissimilar targets and they provide reasonable discrimination of similar targets. Greater than 69% correct classification for two-target scenarios and greater than 60% correct classification for three-target scenarios is obtained using a single HRR profile extracted from a full 360-degree aspect angle window. A key contribution of this thesis is the demonstration that simple statistical moment features and simple linear classifiers can be used to effectively classify HRR profiles.
Download or read book Radar Target Discrimination Using K Pulses from a fast Prony s Method written by Lance Lynwood Webb and published by . This book was released on 1984 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radar Target Discrimination Using the Extinction pulse Technique written by Edward Joseph Rothwell and published by . This book was released on 1985 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Target Classification for the Installation Security Radar System written by and published by . This book was released on 1981 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Target classification is discussed as applied to a ground-based site- security radar system. Discrimination functions were developed for human, vehicle, small animal, bird, and non translating return. Acceptable classification performance was achieved for single-cell assessment, and high- confidence classification is expected for multiple-cell (i.e., track) assessment. (Author).
Download or read book Continuation of the Investigation of Multi frequency Radar Reflectivity and Radar Target Identification written by D. L. Moffatt and published by . This book was released on 1975 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes research during the period July 1, 1974 to June 30, 1975 under the contract on two technical objectives of the Air Force: improved detection and discrimination of radar targets and reduction of nonspecular scattering by wing geometries. The report is contained in two main sections. The first section outlines methods for deducing the complex natural resonances of arbitrary radar targets and the use of these resonances via predictor-correlator processing for detection and discrimination. Illustrative examples of both natural resonance extraction and discrimination are given for aircraft targets. The second section of the report summarizes the analysis of a loaded two-dimensional wind model for horizontal polarization. Hybrid techniques combining moment methods and the geometrical theory of diffraction are used and the loading consists of surface impedance patches. Examples of reduction of the nonspecular cross section are given. A 'folded dipole' like antenna is used as an alternate mechanism for controlling edge diffracted fields.
Download or read book Theory of Radar Target Discrimination written by E. T. Jaynes and published by . This book was released on 1991 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a brief discussion of our radar target identification program, we give a direct application of probability theory to the problem of deciding which of a set of possible targets is present. The reliability of discrimination depends on the noise level, the back ground hash, the variation of echo with target aspect angles, the energy and shape of the transmitted pulse, and the number of pulses. The effect of each of these variables is calculated and discussed, leading to some new conclusions about optimal radar design and optimal data processing. We think that the tactics which might succeed are quite different from those that have been tried in the past, and give elementary intuitive explanations why this is so.
Download or read book Complex Natural Resonances of Radar Targets Via Prony s Method written by C. W. Chuang and published by . This book was released on 1975 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been shown that extraction of complex natural resonances and residues from exact transient responses via Prony's method is both efficient and accurate. However, in the art of radar interrogation the exact transient response is difficult to obtain and the authors must be content with an approximate one. Knowing the complex natural resonances of objects is essential to one type of radar target discrimination. In this paper the authors consider the use of Prony's method in extracting complex natural resonances from approximate backscattered ramp responses of radar targets. A ramp waveform is used in radar target discrimination because a good approximation to the time domain response can be obtained with only a few harmonically related frequency domain responses via Fourier synthesis. By applying Prony's method to this approximate ramp response, a few dominant resonances which are close to the origin of the complex frequency plane can be extracted. This is quite encouraging because for the purpose of radar target discrimination only a few dominant modes are needed. Objects considered are prolate spheroids, simple wire aircraft models and some realistic aircraft models. The accuracy of this method is found to be good when compared to the results obtained by other techniques.
Download or read book Basic Concepts of Radar Polarimetry and Its Applications to Target Discrimination Classification Imaging and Identification written by and published by . This book was released on 1982 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: In meticulous detail, a succinct summary of basic electromagnetic wave polarization descriptors, of the various scatterer polarization transformation matrices, and its invariants of the associated optimal matrix polarizations, and of the scatterer descriptive operators is introduced. It is then shown how the five (5) independent matrix parameter for the relative phase mono-static scattering matrix describing an isolated, yet regionally distributed, target in a reciprocal propagation medium can be recovered from (1) amplitude-only, (2) mixed amplitude plus partial phase, (3) complete two-step amplitude-phase measurements. Basic properties of the radar scattering matrix for linear (H, V) and circular (R, L) polarization basis are described in terms of geometrical target features as functions of the specular point surface coordinate parameters, known as gaussian principal, main and related curvature functions. Based upon this succinct background introduction on radar polarimetry, the concepts are applied mainly for the coherent case to various classes of increasing order of sophistication, as defined in detail in the INTRODUCTION, to the problem of radar target handling for the non-cooperative, limited-data case. (Author).
Download or read book Discrimination of Radar Targets Using Target Complex Natural Resonances written by Amer Jalloul and published by . This book was released on 1985 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Millimeter wave Polarimetric Radar Imagery for Enhanced Target Discrimination written by Daniel R. Culkin and published by . This book was released on 2002 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
