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Airborne Pulse Doppler Radar
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Book Synopsis Airborne Pulsed Doppler Radar by : Guy V. Morris
Download or read book Airborne Pulsed Doppler Radar written by Guy V. Morris and published by Artech House Publishers. This book was released on 1988 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the basic principles of pulse-doppler radar without resorting to a heavily mathematical treatment. High-, medium-, and low-pulse repetition frequency (PRF) modes are explained and the advantages and disadvantages of each are discussed. Also included are an explanation of the major signal-processing functions of doppler filtering, pulse compression, tracking, synthetic aperture, selection of medium PRFs, and resolving range ambiguities and a discussion of how to predict the performance of a pulse-doppler radar in the presence of noise and clutter. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Pulse Doppler Radar by : Clive Alabaster
Download or read book Pulse Doppler Radar written by Clive Alabaster and published by IET. This book was released on 2012-06-30 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is organized into three parts, each one building on the material of the previous sections. Part I (Chapters 1-8) covers the basic principles to lay sound foundations for the following parts of the book. It emphasizes classic processing techniques, especially the fast Fourier transform (FFT), and microwave engineering issues, antennas, and hardware. The second part of the book deals with the theory and techniques specific to pulse Doppler radar. This is subdivided into Part IIA (Chapters 9-10), which covers high PRF pulse Doppler, and Part IIB (Chapters 11-15), which covers medium PRF pulse Doppler. A major theme is that of PRF selection and optimization, other waveform design issues, and the problem of ghosting. While high and medium PRF pulse Doppler techniques have become synonymous with airborne fire control radars, they are used over a broad spectrum of airborne and surface-based radar applications. Part II does emphasize the airborne radar case, but it does not neglect the surface-based radar. Finally, Part III (Chapters 16-19) presents a series of four case studies. Each of these case studies applies the material of Part II whilst also highlighting additional radar techniques (and, in some cases, non-radar considerations) specific to the application. Such is the prevalence of pulse Doppler radars today; the number of case studies that could have been considered is well into double figures. However, the four presented here suffice to illustrate the wide variety of pulse Doppler radar applications.
Book Synopsis Evaluation of a Meteorological Airborne Pulse Doppler Radar by : B. L. Trotter
Download or read book Evaluation of a Meteorological Airborne Pulse Doppler Radar written by B. L. Trotter and published by . This book was released on 1981 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: An X-Band airborne radar has been modified to provide a Doppler radar capability. The Doppler radar has been tested to prove the system concept usable. Tests were conducted at Norman, Oklahoma, from May 30 to June 9 of 1978 and in Miami, Florida, on December 1 through December 5, 1979. Optimally the tests would have used meteorological targets for measurement of radial velocities, however, most tests had to be conducted with chaff and ground returns. The tests did show that the airborne Doppler radar will measure velocities that are comparable to those measured by a ground based Doppler radar and those that can be computed by a high accuracy inertial navigation system. The error in the measured radial velocities, when compared to other sensors, is much less than the estimated RMS error of 2 meters/second. (Author).
Book Synopsis Airborne Pulse Doppler Radar by : J. C. Robertson
Download or read book Airborne Pulse Doppler Radar written by J. C. Robertson and published by . This book was released on 1988 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722941369 Total Pages :142 pages Book Rating :4.9/5 (413 download)
Book Synopsis Analysis and Improved Design Considerations for Airborne Pulse Doppler Radar Signal Processing in the Detection of Hazardous Windshear by : National Aeronautics and Space Administration (NASA)
Download or read book Analysis and Improved Design Considerations for Airborne Pulse Doppler Radar Signal Processing in the Detection of Hazardous Windshear written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: High resolution windspeed profile measurements are needed to provide reliable detection of hazardous low altitude windshear with an airborne pulse Doppler radar. The system phase noise in a Doppler weather radar may degrade the spectrum moment estimation quality and the clutter cancellation capability which are important in windshear detection. Also the bias due to weather return Doppler spectrum skewness may cause large errors in pulse pair spectral parameter estimates. These effects are analyzed for the improvement of an airborne Doppler weather radar signal processing design. A method is presented for the direct measurement of windspeed gradient using low pulse repetition frequency (PRF) radar. This spatial gradient is essential in obtaining the windshear hazard index. As an alternative, the modified Prony method is suggested as a spectrum mode estimator for both the clutter and weather signal. Estimation of Doppler spectrum modes may provide the desired windshear hazard information without the need of any preliminary processing requirement such as clutter filtering. The results obtained by processing a NASA simulation model output support consideration of mode identification as one component of a windshear detection algorithm. Lee, Jonggil Unspecified Center AIRBORNE EQUIPMENT; DETECTION; HAZARDS; METEOROLOGICAL RADAR; PULSE DOPPLER RADAR; SIGNAL PROCESSING; STATISTICAL ANALYSIS; WEATHER; WIND SHEAR; WIND VELOCITY; ALGORITHMS; CLUTTER; ERRORS; ESTIMATES; ESTIMATING; HIGH RESOLUTION; LOW ALTITUDE; LOW FREQUENCIES; SIMULATION; SPECTRA...
Book Synopsis Airborne Pulse Doppler Radar by : J. C. Robertson
Download or read book Airborne Pulse Doppler Radar written by J. C. Robertson and published by . This book was released on 1988 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Improved Design Considerations for Airborne Pulse Doppler Radar Signal Processing in the Detection of Hazardous Windshear by : Jonggil Lee
Download or read book Analysis and Improved Design Considerations for Airborne Pulse Doppler Radar Signal Processing in the Detection of Hazardous Windshear written by Jonggil Lee and published by . This book was released on 1990 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Simon S. Haykin Publisher :Hamilton, Ont. : Communications Research Laboratory, McMaster University ISBN 13 : Total Pages :40 pages Book Rating :4.:/5 (23 download)
Book Synopsis Airborne Pulse-Doppler Radar : False Alarm Control by : Simon S. Haykin
Download or read book Airborne Pulse-Doppler Radar : False Alarm Control written by Simon S. Haykin and published by Hamilton, Ont. : Communications Research Laboratory, McMaster University. This book was released on 1985 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Airborne Radar by : George W. Stimson
Download or read book Introduction to Airborne Radar written by George W. Stimson and published by SciTech Publishing. This book was released on 1998 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the subject for non-specialists: engineers, technicians, pilots, and aerospace industry marketing, public relations, and customer support personnel. Also a reference for specialists in the field. The completely rewritten and revised Second Edition updates the original published by the Hughes Aircraft Company.
Book Synopsis Localized Optimization and Effectiveness Analysis of Medium PRF Airborne Pulse Doppler Radars in the Turkish Air Force by : Haldun Sifa
Download or read book Localized Optimization and Effectiveness Analysis of Medium PRF Airborne Pulse Doppler Radars in the Turkish Air Force written by Haldun Sifa and published by . This book was released on 2011 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of different pulse repetition frequencies (PRFs) delivers significantly different behaviors to airborne radars. For instance, the main purpose for using low PRF is to obtain an unambiguous range measurement. However, the tradeoff when using a low PRF is that the measurement of the target's radial velocity is highly ambiguous and can result in missing some target detections. On the other hand, high PRF is used to reduce or eliminate ambiguities in the measurement of radial velocity. A high PRF, however, causes a highly ambiguous range measurement. The true range is resolved by transmitting multiple waveforms with different PRFs. A modified form of pulse Doppler radar that operates at a medium PRF has both range and Doppler shift ambiguities. However, medium PRF is potentially better for detecting aircraft with low closing speeds than high PRF pulse Doppler. This thesis will focus on the effectiveness and localized optimization of medium PRF in airborne pulse Doppler radars, for the Turkish Air Force. This thesis will also present an analysis of medium PRF performance in a low altitude, air-to-air operating environment offering moderate range radar capability and also delivering acceptable range and Doppler resolution within that operating environment.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722343798 Total Pages :88 pages Book Rating :4.3/5 (437 download)
Book Synopsis Designing Clutter Rejection Filters with Complex Coefficients for Airborne Pulsed Doppler Weather Radar by : National Aeronautics and Space Administration (NASA)
Download or read book Designing Clutter Rejection Filters with Complex Coefficients for Airborne Pulsed Doppler Weather Radar written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground clutter interference is a major problem for airborne pulse Doppler radar operating at low altitudes in a look-down mode. With Doppler zero set at the aircraft ground speed, ground clutter rejection filtering is typically accomplished using a high-pass filter with real valued coefficients and a stopband notch centered at zero Doppler. Clutter spectra from the NASA Wind Shear Flight Experiments of l991-1992 show that the dominant clutter mode can be located away from zero Doppler, particularly at short ranges dominated by sidelobe returns. Use of digital notch filters with complex valued coefficients so that the stopband notch can be located at any Doppler frequency is investigated. Several clutter mode tracking algorithms are considered to estimate the Doppler frequency location of the dominant clutter mode. From the examination of night data, when a dominant clutter mode away from zero Doppler is present, complex filtering is able to significantly increase clutter rejection over use of a notch filter centered at zero Doppler. Jamora, Dennis A. Unspecified Center...
Book Synopsis Advances in Digital Signal Processing with Applications to Airborne Pulse Doppler Radar by : Daniel Dagfin Rivers
Download or read book Advances in Digital Signal Processing with Applications to Airborne Pulse Doppler Radar written by Daniel Dagfin Rivers and published by . This book was released on 1977 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Pulse-pair Algorithm as a Robust Estimator of Turbulent Weather Spectral Parameters Using Airborne Pulse Doppler Radar by : Ernest Granville Baxa
Download or read book The Pulse-pair Algorithm as a Robust Estimator of Turbulent Weather Spectral Parameters Using Airborne Pulse Doppler Radar written by Ernest Granville Baxa and published by . This book was released on 1991 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722880187 Total Pages :42 pages Book Rating :4.8/5 (81 download)
Book Synopsis The Pulse-Pair Algorithm As a Robust Estimator of Turbulent Weather Spectral Parameters Using Airborne Pulse Doppler Radar by : National Aeronautics and Space Administration (NASA)
Download or read book The Pulse-Pair Algorithm As a Robust Estimator of Turbulent Weather Spectral Parameters Using Airborne Pulse Doppler Radar written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-14 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pulse pair method for spectrum parameter estimation is commonly used in pulse Doppler weather radar signal processing since it is economical to implement and can be shown to be a maximum likelihood estimator. With the use of airborne weather radar for windshear detection, the turbulent weather and strong ground clutter return spectrum differs from that assumed in its derivation, so the performance robustness of the pulse pair technique must be understood. Here, the effect of radar system pulse to pulse phase jitter and signal spectrum skew on the pulse pair algorithm performance is discussed. Phase jitter effect may be significant when the weather return signal to clutter ratio is very low and clutter rejection filtering is attempted. The analysis can be used to develop design specifications for airborne radar system phase stability. It is also shown that the weather return spectrum skew can cause a significant bias in the pulse pair mean windspeed estimates, and that the poly pulse pair algorithm can reduce this bias. It is suggested that use of a spectrum mode estimator may be more appropriate in characterizing the windspeed within a radar range resolution cell for detection of hazardous windspeed gradients. Baxa, Ernest G., Jr. and Lee, Jonggil Unspecified Center NAG1-928; RTOP 505-64-12-02...
Author :Simon S. Haykin Publisher :Hamilton, Ont. : Communications Research Laboratory, Faculty of Engineering, McMaster University ISBN 13 : Total Pages :36 pages Book Rating :4.:/5 (159 download)
Book Synopsis Waveform Design for Airborne Pulse-doppler Radars by : Simon S. Haykin
Download or read book Waveform Design for Airborne Pulse-doppler Radars written by Simon S. Haykin and published by Hamilton, Ont. : Communications Research Laboratory, Faculty of Engineering, McMaster University. This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air and Spaceborne Radar Systems by : Philippe Lacomme
Download or read book Air and Spaceborne Radar Systems written by Philippe Lacomme and published by William Andrew. This book was released on 2001 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for actual users of radar, the book focuses on the history, main principles, functions, modes, properties and specific nature of modern airborne radar. It examines radar's role within the system when carrying out its assigned missions, showing the possibilities of radar, it's limitations and a discussion of how radar may evolve in the future.
Book Synopsis Recent Advancements in Airborne Radar Signal Processing: Emerging Research and Opportunities by : Almslmany, Amir
Download or read book Recent Advancements in Airborne Radar Signal Processing: Emerging Research and Opportunities written by Almslmany, Amir and published by IGI Global. This book was released on 2018-06-01 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: As computer and information systems technology advances, industries such as aviation stand to benefit from the overwhelming new advances in hardware, software, and best practices. Recent Advancements in Airborne Radar Signal Processing: Emerging Research and Opportunities is a critical scholarly resource exploring an airborne radar system that will help to improve the function of airborne radar and self-deception spoofing jammer sources. Featuring coverage on a broad range of topics, such as doppler straddling loss, spoofing systems, and radar platform modeling, this book is geared towards academicians, researchers, and students seeking current research on radar signal processing in the field of aviation.
