Comparison Of The Step Frequency Radar With The Conventional Constant Frequency Radars PDF Download
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Author | : Dimitrios N. Geladakis |
Publisher | : |
Total Pages | : 62 |
Release | : 1996-12-01 |
Genre | : |
ISBN | : 9781423580355 |
Download Comparison of the Step Frequency Radar with the Conventional Constant Frequency Radars Book in PDF, ePub and Kindle
In this thesis, the Step Frequency radar system is compared with the conventional Constant Frequency. radar system. The two radar systems are separately analyzed and their analyses are followed by a comparison which is mainly based upon their effectiveness to detect moving targets in clutter. The step frequency waveform consists of a series of pulses whose pulse width is constant and whose carrier frequency is linearly increased from pulse to pulse in steps. As compared to the conventional constant frequency radar waveforms, the step frequency waveform can achieve high range resolution while still retaining the advantages of lower instantaneous receiver bandwidth and lower analog-to-digital sampling rate at the expense, however, of more complex signal processing. ANNOTATION: Reprint: omparison of the Step Frequency Radar with the Conventional Constant Frequency Radars.
Author | : G. S. Gill |
Publisher | : |
Total Pages | : 98 |
Release | : 1996-06-01 |
Genre | : |
ISBN | : 9781423585169 |
Download Step Frequency High PRF Waveform Design Book in PDF, ePub and Kindle
This report discusses the design and analysis of a step frequency waveform for a surface based radar to detect small targets embedded in clutter. Detection of small targets requires significant reduction in clutter which can be achieved with high range resolution radar with narrow range cell size and Doppler processing. High range resolution with conventional constant frequency waveforms requires high speed A/D with large dynamic range, which is limited by existing A/D technology. However, step frequency allows high resolution with modest A/D requirements. The design of a step frequency waveform is complex due to the conflicting effect of waveform parameters on performance goals. In this report, the design process which determines the waveform parameters for given radar specifications, is systemized. A graphical as well as a computer implementation of the design process is presented. The step frequency waveform is analyzed using the ambiguity function which brings out the characteristics and advantages of the waveform. The ambiguity surface and related diagrams are plotted for specific waveforms of interest.
Author | : James D. Taylor |
Publisher | : CRC Press |
Total Pages | : 442 |
Release | : 2018-10-03 |
Genre | : Technology & Engineering |
ISBN | : 131766308X |
Download Ultra-wideband Radar Technology Book in PDF, ePub and Kindle
In 1995, James D. Taylor's Introduction to Ultra-Wideband Radar Systems introduced engineers to the theory behind a promising new concept for remote sensing. Since then, the field has undergone enormous growth with new applications realized and more applications conceptualized at a remarkable pace. However, understanding ultra-wideband (UWB) radar requires a new philosophical approach. Concepts such as radar cross section will have new meanings as range resolution becomes smaller than the target. Ultra-Wideband Radar Technology is a guide to the future of radar by an international team of experts. They present the problems, solutions, and examples of UWB radar remote sensing. Chapters discuss the theory and ideas for future systems development, and show the potential capabilities. The writers present concepts such as the differences between UWB and conventional radars, improving over-resolved target detection, receivers and waveforms, micropower systems, high power switching, and bistatic radar polarimetry. Finding comparable information elsewhere might require consulting hundreds of other books, technical journals, and symposium proceedings. Ultra-Wideband Radar Technology offers a unique opportunity to explore the theory, applications, and technology of UWB radar within a single source.
Author | : Nengjing Li |
Publisher | : |
Total Pages | : 832 |
Release | : 1996 |
Genre | : Radar |
ISBN | : 9787505339033 |
Download 1996 CIE International Conference of Radar proceedings Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 78 |
Release | : 1995 |
Genre | : |
ISBN | : |
Download Velocity Compensation in Stepped Frequency Radar Book in PDF, ePub and Kindle
As compared to the commonly used constant frequency radar waveforms, the stepped-frequency waveform can achieve high range resolution while still retaining the advantages of lower instantaneous receiver bandwidth and lower analog-to-digital sampling rate. However, the relative radial motion between the target and the stepped-frequency radar will result in performance degradations, such as range error, loss in signal-to-noise ratio, and degraded range resolution. The solution to this problem is to apply velocity compensation to the received signal, which can eliminate the degradations due to Doppler effects. Three velocity compensation schemes for the detection of a moving target in clutter are designed, discussed, and compared in this thesis. Also, a simulation is presented to verify the concepts, and simulation results are compared and discussed. (AN).
Author | : |
Publisher | : |
Total Pages | : 23 |
Release | : 1993 |
Genre | : |
ISBN | : |
Download System Analysis of Ultra-Wideband Instrumentation Radars: Impulse Vs. Stepped-Chirp Approaches Book in PDF, ePub and Kindle
As part of an ongoing effort to determine the utility of ultra- wideband (UWB) radar systems for military application, an experimental program was developed and executed to collect terrain clutter data using high resolution waveforms in the ultra high frequency (UHF) spectral region. Two approaches to the design of the radar instrumentation to be used to collect these data were considered: an impulse system with a nominal 1 ns pulse duration and a conventional stepped-chirp instrumentation radar covering the same frequency range. A novel feature of the program was the use of a scanned linear aperture to simulate the use of a large, ideally weighted real aperture antenna system, In this paper, the theoretical analysis done to predict and compare the performance expected from either system approach is presented in terms of the noise-equivalent reflectivity of the clutter measurement system, the time to collect data, and the impact of the linearly scanned aperture on sensitivity, angular resolution, and data collection time.
Author | : |
Publisher | : |
Total Pages | : 402 |
Release | : 1987 |
Genre | : |
ISBN | : |
Download Central Radar System, Over the Horizon Backscatter Radar Program, Proposed (ND,SD,MN) Book in PDF, ePub and Kindle
Author | : Louis Mario Tozzi |
Publisher | : |
Total Pages | : 194 |
Release | : 1972 |
Genre | : Frequency modulation detectors |
ISBN | : |
Download Resolution in Frequency-modulated Radars Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 492 |
Release | : 1987 |
Genre | : |
ISBN | : |
Download Alaskan Radar System, Over the Horizon Backscatter Radar System, Proposed Book in PDF, ePub and Kindle
Author | : Levente Kovács |
Publisher | : Springer |
Total Pages | : 307 |
Release | : 2019-03-15 |
Genre | : Technology & Engineering |
ISBN | : 3030143503 |
Download Recent Advances in Intelligent Engineering Book in PDF, ePub and Kindle
This book gathers contributions on fuzzy neural control, intelligent and non-linear control, dynamic systems and cyber-physical systems. It presents the latest theoretical and practical results, including numerous applications of computational intelligence in various disciplines such as engineering, medicine, technology and the environment. The book is dedicated to Imre J. Rudas on his seventieth birthday.