Author: Gregory Louis Charvat
Publisher: Gregory Charvat
ISBN: 0549238360
Category : Antenna arrays
Languages : en
Pages : 336

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Book Description

Author: Gregory Louis Charvat
Publisher:
ISBN:
Category : Antenna arrays
Languages : en
Pages : 680

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Book Description

Author: Gregory L. Charvat
Publisher: CRC Press
ISBN: 1439866007
Category : Technology & Engineering
Languages : en
Pages : 416

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Book Description
Radar Expert, Esteemed Author Gregory L. Charvat on CNN and CBSAuthor Gregory L. Charvat appeared on CNN on March 17, 2014 to discuss whether Malaysia Airlines Flight 370 might have literally flown below the radar. He appeared again on CNN on March 20, 2014 to explain the basics of radar, and he explored the hope and limitations of the technology i

Author: Gregory L. Charvat
Publisher: CRC Press
ISBN: 1498759645
Category : Technology & Engineering
Languages : en
Pages : 347

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Book Description
Radar Expert, Esteemed Author Gregory L. Charvat on CNN and CBSAuthor Gregory L. Charvat appeared on CNN on March 17, 2014 to discuss whether Malaysia Airlines Flight 370 might have literally flown below the radar. He appeared again on CNN on March 20, 2014 to explain the basics of radar, and he explored the hope and limitations of the technology i

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
An obstacle penetrating dynamic radar imaging system for the detection, tracking, and imaging of an individual, animal, or object comprising a multiplicity of low power ultra wideband radar units that produce a set of return radar signals from the individual, animal, or object, and a processing system for said set of return radar signals for detection, tracking, and imaging of the individual, animal, or object. The system provides a radar video system for detecting and tracking an individual, animal, or object by producing a set of return radar signals from the individual, animal, or object with a multiplicity of low power ultra wideband radar units, and processing said set of return radar signals for detecting and tracking of the individual, animal, or object.

Author: Hervé Paulino
Publisher: Springer Science & Business Media
ISBN: 1402084102
Category : Technology & Engineering
Languages : en
Pages : 239

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Book Description
Low Power UWB CMOS Radar Sensors deals with the problem of designing low cost CMOS radar sensors. The radar sensor uses UWB signals in order to obtain a reasonable target separation capability, while maintaining a maximum signal frequency below 2 GHz. This maximum frequency value is well within the reach of current CMOS technologies. The use of UWB signals means that most of the methodologies used in the design of circuits and systems that process narrow band signals, can no longer be applied. Low Power UWB CMOS Radar Sensors provides an analysis between the interaction of UWB signals, the antennas and the processing circuits. This analysis leads to some interesting conclusions on the types of antennas and types of circuits that should be used. A methodology to compare the noise performance of UWB processing circuits is also derived. This methodology is used to analyze and design the constituting circuits of the radar transceiver. In order to validate the design methodology a CMOS prototype is designed and experimentally evaluated.

Author: Hans Hellsten
Publisher: Artech House
ISBN: 1630814466
Category : Technology & Engineering
Languages : en
Pages : 367

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Book Description
This unique resource presents the principles of meter wave ground imaging radar focusing on foliage penetration. Scattering of VHF/UHF radar signals are presented including the basic laws of electromagnetism, homogeneous media, media discontinuities/non-flat media discontinuities, and ground reflectivity. The book introduces meter wavelength synthetic aperture radar, bandwidth, and SAR imaging principles, including moving objects and also compares collected SAR data. Meter wavelength SAR system design and processing is explored, highlighting low frequency SAR design aspects, characterization of additive noise, antenna system basics, waveforms and emission adaptation which is critical material to the advancement in sensors and signal processing for below ground imaging by the energy industry and governments worldwide. The FFBP method of processing, explicit treatment of base 2 FFBP is explained along with motion errors sensitivity and motion estimation methods. The book also explains the Bayesian change detection, covariance moving target extraction and polarimetric subsurface imaging.

Author:
Publisher:
ISBN:
Category : Continuous wave radar
Languages : en
Pages : 0

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Book Description
A frequency modulated continuous wave radar with continuous beam steering is developed for this thesis. The beam steering is achieved with the use of a 4-element active electronically scanned array (AESA). A Fast Fourier Transform based imaging algorithm is developed to produce imagery from the radar output. A model is also developed for image simulation. This radar occupies a 600 MHz bandwidth operating in the S band. This radar is unusual in that it uses a frequency conversion architecture to achieve beam steering and does not rely on time delays to negate beam squinting. Instead, the smearing of imaged targets due to phased array characteristics is investigated. Using readily available and low cost off the shelf components, this system can produce an image of the target scene and image targets behind a factory wall of up to 20 meters away with only 1 mW of transmit power.

Author: Qilian Liang
Publisher: Springer
ISBN: 3662498316
Category : Technology & Engineering
Languages : en
Pages : 979

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Book Description
This book brings together papers presented at the 4th International Conference on Communications, Signal Processing, and Systems, which provides a venue to disseminate the latest developments and to discuss the interactions and links between these multidisciplinary fields. Spanning topics ranging from Communications, Signal Processing and Systems, this book is aimed at undergraduate and graduate students in Electrical Engineering, Computer Science and Mathematics, researchers and engineers from academia and industry as well as government employees (such as NSF, DOD, DOE, etc).

Author: Nemai Chandra Karmakar
Publisher: John Wiley & Sons
ISBN: 1119227313
Category : Technology & Engineering
Languages : en
Pages : 300

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Book Description
Introduces advanced high-capacity data encoding and throughput improvement techniques for fully printable multi-bit Chipless RFID tags and reader systems The book proposes new approaches to chipless RFID tag encoding and tag detection that supersede their predecessors in signal processing, tag design, and reader architectures. The text is divided into two main sections: the first section introduces the fundamentals of electromagnetic (EM) imaging at mm-wave band to enhance the content capacity of Chipless RFID systems. The EM Imaging through Synthetic Aperture Radar (SAR) technique is used for data extraction. The second section presents a few smart tag detection techniques for existing chipless RFID systems. A Multiple-Input and Multiple-Output (MIMO) based tag detection technique improves the spectral efficiency and increases data bit capacity. The book concludes with a discussion of how the MIMO approach can be combined with the image based technique to introduce a complete solution with a fast imaging approach to chipless RFID systems. The book has the following salient features: Discusses new approaches to chipless RFID tags such as EM imaging, high capacity data encoding, and robust tag detection techniques Presents techniques to enhance data content capacity of tags and reliable tag detection for the readers at unlicensed microwave and mm-wave 2.45, 24 and 60 GHz instrumentation, scientific and medical (ISM) frequency bands Includes case studies of real-world applications