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检索条件"任意字段=Conference on Radar Sensor Technology XX"

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Three-dimensional radar imaging techniques and systems for near-field applications 20

Three-dimensional radar imaging techniques and systems for n...

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conference on radar sensor technology xx

作者： Sheen, David M. Hall, Thomas E. McMakin, Douglas L. Jones, A. Mark Tedeschi, Jonathan R. Pacific Northwest Natl Lab POB 999 Richland WA 99352 USA

ISBN: (纸本)9781510600706

The Pacific Northwest National Laboratory has developed three-dimensional holographic (synthetic aperture) radar imaging techniques and systems for a wide variety of near-field applications. These applications include radar cross-section (RCS) imaging, personnel screening, standoff concealed weapon detection, concealed threat detection, through-barrier imaging, ground penetrating radar (GPR), and non-destructive evaluation (NDE). Sequentially-switched linear arrays are used for many of these systems to enable high-speed data acquisition and 3-D imaging. In this paper, the techniques and systems will be described along with imaging results that demonstrate the utility of near-field 3-D radar imaging for these compelling applications.

关键词： radar imaging millimeter-wave imaging microwave imaging concealed-weapon detection

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Quantum Seismography 20

Quantum Seismography

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conference on radar sensor technology xx

作者： Lanzagorta, Marco Jitrik, Oliverio Uhlmann, Jeffrey Venegas, Salvador Naval Res Lab Washington DC 20375 USA Ranken Inst Mexico City DF Mexico Univ Missouri Columbia MO USA Monterrey Inst Technol Mexico City DF Mexico

ISBN: (纸本)9781510600706

A major scientific thrust from recent years has been to try to harness quantum phenomena to increase the performance of a wide variety of information processing devices. In particular, quantum radar has emerged as an intriguing theoretical concept that could revolutionize electromagnetic standoff sensing. In this paper we will discuss how the techniques developed for quantum radar could also be used towards the design of novel seismographs able to detect small ground vibrations., We use a hypothetical earthquake warning system in order to compare quantum seismography with traditional seismographic techniques.

关键词： Quantum radar Quantum Sensing Quantum sensors Quantum Information Seismography Seismology Optical Interferometer Quantum Seismography Earthquake Early Warning System Forensic Seismology

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Quantum Computation of the Electromagnetic Cross Section of Dielectric Targets 20

Quantum Computation of the Electromagnetic Cross Section of ...

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conference on radar sensor technology xx

作者： Lanzagorta, Marco Uhlmann, Jeffrey Jitrik, Oliverio Venegas-Andraca, Salvador E. Wiesman, Seth Naval Res Lab Washington DC 20375 USA Univ Missouri Columbia MO 65211 USA Ranken Inst Mexico City DF Mexico Tecnol Monterrey Escuela Ciencias & Ingn Monterrey Estado De Mexic Mexico

ISBN: (纸本)9781510600706

The radar Cross Section (RCS) is a crucial element for assessing target visibility and target characterization, and it depends not only on the target's geometry but also on its composition. However, the calculation of the RCS is a challenging task due to the mathematical description of electromagnetic phenomena as well as the computational resources needed. In this paper, we will introduce two ideas for the use of quantum information processing techniques to calculate the RCS of dielectric targets. The first is to use toolboxes of quantum functions to determine the geometric component of the RCS. The second idea is to use quantum walks, expressed in terms of scattering processes, to model radar absorbing materials.

关键词： radar Quantum Computation radar Cross Sections Quantum Information Sensing Scattering Matrix radar Absorbing Materials

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FlexSAR, a High-Quality, Flexible, Cost-Effective, Prototype SAR System 20

FlexSAR, a High-Quality, Flexible, Cost-Effective, Prototype...

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conference on radar sensor technology xx

作者： Jensen, Mark Knight, Chad Haslem, Brent Space Dynam Lab 1695 North Res Pk Way North Logan UT 84341 USA

ISBN: (纸本)9781510600706

The FlexSAR radar system was designed to be a high quality, low-cost, flexible research prototype instrument. radar researchers and practitioners often desire the ability to prototype new or advanced configurations, yet the ability to enhance or upgrade existing radar systems can be cost prohibitive. FlexSAR answers the need for a flexible radar system that can be extended easily, with minimal cost and time expenditures. The design approach focuses on reducing the resources required for developing and validating new advanced radar modalities. Such an approach fosters innovation and provides risk reduction since actual radar data can be collected in the appropriate mode, processed, and analyzed early in the development process. This allows for an accurate, detailed understanding of the corresponding trade space. This paper is a follow-on to last years paper and discusses the advancements that have been made to the FlexSAR system. The overall system architecture is discussed and presented along with several examples illustrating the system utility.

关键词： SAR radar ATI RF cognitive radar agile radar adaptive radar prototype

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Derivation and Validation of the Nonlinear radar Range Equation 20

Derivation and Validation of the Nonlinear Radar Range Equat...

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conference on radar sensor technology xx

作者： Gallagher, Kyle A. Gregory, J. Mazzaro Martone, Anthony F. Sherbondy, Kelly D. Narayanan, Ram M. Gen Tech Serv 3100 Route 138 Bldg 3 Wall NJ 07719 USA The Citadel Dept Elect & Comp Engn Charleston SC 29409 USA US Army Res Lab Sensors & Electron Devices Directorate Adelphi MD 20783 USA Penn State Univ Dept Elect Engn University Pk PA 16802 USA

ISBN: (纸本)9781510600706

The radar range equation for detecting targets using linear radar has been defined and derived many times for many different applications. The nonlinear radar range equation has been defined in the literature but a step by step derivation is lacking and no experimental validation has been shown. This paper starts with a nonlinear system model and provides simulated and experimental validation for the model. Once the model is validated, the model is used to derive the nonlinear radar range equation for nonlinear radar. Key differences between the linear and nonlinear radar range equation will be emphasized.

关键词： Harmonic radar nonlinear system model nonlinear radar range equation harmonic phase progression

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94 GHz pulsed coherent radar for high power amplifier evaluation 20

94 GHz pulsed coherent radar for high power amplifier evalua...

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conference on radar sensor technology xx

作者： Robertson, Duncan A. Hunter, Robert I. Gallacher, Thomas F. Univ St Andrews SUPA Sch Phys & Astron St Andrews KY16 9SS Fife Scotland Aalto Univ Sch Elect Engn Dept Radio Sci & Engn POB 13000 FI-00076 Aalto Finland

ISBN: (纸本)9781510600706

We present the design and characterization of a 94 GHz pulsed coherent radar to be used for the evaluation and demonstration of novel wideband, high power vacuum tube amplifier technology. The radar is designed to be fully coherent and exploits a low phase noise architecture to maximize Doppler performance. We selected to use horn-fed Fresnel zone plate lens antennas (FZPs) with 4-level phase quantization as a low cost method of realizing large aperture (0.5 m) antennas. The measured performance of these FZPs agrees closely with the design predictions and exceeds that obtainable with a Cassegrain of an equivalent size.

关键词： radar pulsed Doppler millimeter wave coherent high power amplifier Fresnel zone plate

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Second generation of AVTIS FMCW millimeter wave radars for mapping volcanic terrain 20

Second generation of AVTIS FMCW millimeter wave radars for m...

引用

conference on radar sensor technology xx

作者： Macfarlane, David G. Robertson, Duncan A. Cassidy, Scott L. Univ St Andrews SUPA Sch Phys & Astron St Andrews KY16 9SS Fife Scotland

ISBN: (纸本)9781510600706

The second generation AVTIS ground-based millimeter wave instruments designed for monitoring topography of volcanic lava domes are solid state 94 GHz FMCW rastered, real beam radars operating at ranges of up to similar to 7 km with a range resolution of similar to 2.5 m. Operating ten times faster than the prototype with reduced power consumption suitable for battery powered portable use as well as installation at a telemetered site under solar power, we examine their performance as tools for monitoring topography over time and report on the operational statistics both as a radar sensor and as a means of generating digital elevation maps.

关键词： radar FMCW Millimeter wave DEM Terrain

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Real-Time radar Signal Processing Using GPGPU (General-Purpose Graphic Processing Unit) 20

Real-Time Radar Signal Processing Using GPGPU (General-Purpo...

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conference on radar sensor technology xx

作者： Kong, Fanxing Zhang, Yan (Rockee) Cai, Jingxiao Palmer, Robert D. Univ Oklahoma IART Norman OK 73019 USA Univ Oklahoma ARRC Norman OK 73019 USA Univ Oklahoma Sch Elect & Comp Engn Norman OK 73019 USA Univ Oklahoma Sch Meteorol Norman OK 73019 USA

ISBN: (纸本)9781510600706

This study introduces a practical approach to develop real-time signal processing chain for general phased array radar on NVIDIA GPUs(Graphical Processing Units) using CUDA (Compute Unified Device Architecture) libraries such as cuBlas and cuFFT, which are adopted from open source libraries and optimized for the NVIDIA GPUs. The processed results are rigorously verified against those from the CPUs. Performance benchmarked in computation time with various input data cube sizes are compared across GPUs and CPUs. Through the analysis, it will be demonstrated that GPGPUs (General Purpose GPU) real-time processing of the array radar data is possible with relatively low-cost commercial GPUs.

关键词： radar phase array real-time processing GPU CUDA

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radar Fall Detection Using Principal Component Analysis 20

Radar Fall Detection Using Principal Component Analysis

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conference on radar sensor technology xx

作者： Jokanovic, Branka Amin, Moeness Ahmad, Fauzia Boashash, Boualem Villanova Univ Ctr Adv Commun Villanova PA 19085 USA Qatar Univ Coll Engn Dept Elect Engn Doha Qatar

ISBN: (纸本)9781510600706

Falls are a major cause of fatal and nonfatal injuries in people aged 65 years and older. radar has the potential to become one of the leading technologies for fall detection, thereby enabling the elderly to live independently. Existing techniques for fall detection using radar are based on manual feature extraction and require significant parameter tuning in order to provide successful detections. In this paper, we employ principal component analysis for fall detection, wherein eigen images of observed motions are employed for classification. Using real data, we demonstrate that the PCA based technique provides performance improvement over the conventional feature extraction methods.

关键词： Fall detection micro-Doppler principal component analysis radar time-frequency

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Fractal Characteristics for Binary Noise radar Waveform 20

Fractal Characteristics for Binary Noise Radar Waveform

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conference on radar sensor technology xx

作者： Li, Bing C. Lockheed Martin MST Owego 1801 State Route 17CMD0315 Owego NY 13827 USA

ISBN: (纸本)9781510600706

Noise radars have many advantages over conventional radars and receive great attentions recently. The performance of a noise radar is determined by its waveforms. Investigating characteristics of noise radar waveforms has significant value for evaluating noise radar performance. In this paper, we use binomial distribution theory to analyze general characteristics of binary phase coded (BPC) noise waveforms. Focusing on aperiodic autocorrelation function, we demonstrate that the probability distributions of sidelobes for a BPC noise waveform depend on the distances of these sidelobes to the mainlobe. The closer a sidelobe to the mainlobe, the higher the probability for this sidelobe to be a maximum sidelobe. We also develop Monte Carlo framework to explore the characteristics that are difficult to investigate analytically. Through Monte Carlo experiments, we reveal the Fractal relationship between the code length and the maximum sidelobe value for BPC waveforms, and propose using fractal dimension to measure noise waveform performance.

关键词： radar Fractal analysis Monte Carlo methods Binary data Interference (communication) Probability theory C++ Distance measurement Doppler effect radar imaging

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