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Comments on airborne ISR radar utilization 20

Comments on airborne ISR radar utilization

引用

conference on radar sensor technology xx

作者： Doerry, A. W. Sandia Natl Labs POB 5800MS 0519 Albuquerque NM 87185 USA

ISBN: (纸本)9781510600706

A sensor/payload operator for modern multi-sensor multi-mode Intelligence, Surveillance, and Reconnaissance (ISR) platforms is often confronted with a plethora of options in sensors and sensor modes. This often leads an over-worked operator to down-select to favorite sensors and modes;for example a justifiably favorite Full Motion Video (FMV) sensor at the expense of radar modes, even if radar modes can offer unique and advantageous information. At best, sensors might be used in a serial monogamous fashion with some cross-cueing. The challenge is then to increase the utilization of the radar modes in a manner attractive to the sensor/payload operator. We propose that this is best accomplished by combining sensor modes and displays into 'super-modes'.

关键词： radar ISR utilization modes

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Polarization Differences in Airborne Ground Penetrating radar Performance for Landmine Detection 20

Polarization Differences in Airborne Ground Penetrating Rada...

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conference on radar sensor technology xx

作者： Dogaru, Traian Le, Calvin US Army Res Lab 2800 Powder Mill Rd Adelphi MD 20783 USA

ISBN: (纸本)9781510600706

The U.S. Army Research Laboratory (ARL) has investigated the ultra-wideband (UWB) radar technology for detection of landmines, improvised explosive devices and unexploded ordnance, for over two decades. This paper presents a phenomenological study of the radar signature of buried landmines in realistic environments and the performance of airborne synthetic aperture radar (SAR) in detecting these targets as a function of multiple parameters: polarization, depression angle, soil type and burial depth. The investigation is based on advanced computer models developed at ARL. The analysis includes both the signature of the targets of interest and the clutter produced by rough surface ground. Based on our numerical simulations, we conclude that low depression angles and H-H polarization offer the highest target-to-clutter ratio in the SAR images and therefore the best radar performance of all the scenarios investigated.

关键词： radar signature radar imaging radar modeling computational electromagnetics

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Analytical Formulation of the Quantum Electromagnetic Cross Section 20

Analytical Formulation of the Quantum Electromagnetic Cross ...

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conference on radar sensor technology xx

作者： Brandsema, Matthew J. Narayanan, Ram M. Lanzagorta, Marco Penn State Univ Dept Elect Engn University Pk PA 16802 USA Naval Res Lab Washington DC 20375 USA

ISBN: (纸本)9781510600706

It has been found that the quantum radar cross section (QRCS) equation can be written in terms of the Fourier transform of the surface atom distribution of the object. This paper uses this form to provide an analytical formulation of the quantum radar cross section by deriving closed form expressions for various geometries. These expressions are compared to the classical radar cross section (RCS) expressions and the quantum advantages are discerned from the differences in the equations. Multiphoton illumination is also briefly discussed.

关键词： Quantum radar QRCS RCS Quantum Advantage Quantum Information Science

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Improving Quantum Sensing Efficiency with Virtual Modes 20

Improving Quantum Sensing Efficiency with Virtual Modes

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conference on radar sensor technology xx

作者： Lanzagorta, Marco Uhlmann, Jeffrey Le, True Jitrik, Oliverio Venegas-Andraca, Salvador E. 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 Mexico

ISBN: (纸本)9781510600706

Recent research suggests that quantum radar offers several potential advantages over classical sensing technologies. At present, the primary practical challenge is the fast and efficient generation of entangled microwave photons. To mitigate this limitation we propose and briefly examine a distributed architecture to synthetically increase the number of effectively-distinguishable modes.

关键词： Quantum radar Quantum Sensing Quantum sensors Quantum Information Data Fusion Multistatic radar Virtual Modes

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Antenna phase center locations in tapered aperture subarrays 20

Antenna phase center locations in tapered aperture subarrays

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conference on radar sensor technology xx

作者： Doerry, A. W. Bicker, D. L. Sandia Natl Labs POB 5800MS 0519 Albuquerque NM 87185 USA

ISBN: (纸本)9781510600706

Antenna apertures are often parsed into subapertures for Direction of Arrival (DOA) measurements. However, when the overall aperture is tapered for sidelobe control, the locations of phase centers for the individual subapertures are shifted due to the local taper of individual subapertures. Furthermore, individual subaperture gains are also affected. These non-uniform perturbations complicate DOA calculations. Techniques are presented to calculate subaperture phase center locations, and algorithms are given for equalizing subapertures' gains.

关键词： radar antenna subapertures array sidelobes

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Some Applications of the Characteristics Non-Uniform Doppler to radar 20

Some Applications of the Characteristics Non-Uniform Doppler...

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conference on radar sensor technology xx

作者： Gray, John E. Breaux, Nancy A. Hansen, Jeremiah J. Naval Surface Warfare Ctr Dahlgren Electromagnet & Sensor Syst Dept 18444 Frontage Rd Suite 328 Dahlgren VA 22448 USA

ISBN: (纸本)9781510600706

Since the inception of coherent waveforms, it has been realized that the effect of non-uniform motion of a non-point like object can induce structure in the return spectrum of the waveform that can be exploited. The non-uniform Doppler spectrum has useful information that can be found in the spreading of the Doppler spectrum for the motion models: acceleration, jerk, quadric, and exponential slowdown as examples well as a characteristic of periodic motion. We illustrate this with examples relevant to automotive radar, tracking meteors with ambient sources, characterizing moving sources and other relevant examples.

关键词： non-uniform motion micro-Doppler non-periodic motion periodic motion coherent waveforms

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Clutter Attenuation Using the Doppler Effect in Standoff Electromagnetic Quantum Sensing 20

Clutter Attenuation Using the Doppler Effect in Standoff Ele...

引用

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

In the context of traditional radar systems, the Doppler effect is crucial to detect and track moving targets in the presence of clutter. In the quantum radar context, however, most theoretical performance analyses to date have assumed static targets. In this paper we consider the Doppler effect at the single photon level. In particular, we describe how the Doppler effect produced by clutter and moving targets modifies the quantum distinguishability and the quantum radar error detection probability equations. Furthermore, we show that Doppler-based delay line cancelers can reduce the effects of clutter in the context of quantum radar, but only in the low-brightness regime. Thus, quantum radar may prove to be an important technology if the electronic battlefield requires stealthy tracking and detection of moving targets in the presence of clutter.

关键词： Quantum radar Quantum Sensing Quantum sensors Quantum Information Doppler Effect radar radar Clutter Clutter Attenuation Electronic Warfare radar Countermeasures

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A New Two-step Algorithm for Spotlight Synthetic Aperture radar Imaging 20

A New Two-step Algorithm for Spotlight Synthetic Aperture Ra...

引用

conference on radar sensor technology xx

作者： Sun, Ligang Zhang, Lei Wang, Guanyong Hu, Mengqi Qiao, Zhijun G. Univ Texas Rio Grande Valley Sch Math & Stat Sci Edinburg TX 78539 USA Xidian Univ Xian 710071 Peoples R China

ISBN: (纸本)9781510600706

In this paper, we designed a new two-stage algorithm to formulate accurately the focusing image with the highly squinted synthetic aperture radar. First of all is the general model of the squinted synthetic aperture radar (SAR) focusing a fixed area. After the echo data collection, the first stage of the algorithm is to establish the coarse image by performing the conventional range cell migration correction and azimuth matched filtering. In the second stage, the azimuth-variant was corrected and the motion compensation was carried to achieve a better image. A simulation experiment was given in the end.

关键词： Synthetic Aperture radar spolight SAR model motion compensation (MOCO) two-stage algorithm

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A Novel Photonic Beam-space Receiver for Multi-function radar 20

A Novel Photonic Beam-space Receiver for Multi-function Rada...

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conference on radar sensor technology xx

作者： Deroba, Joseph C. Shi, Shouyuan Schuetz, Chris Prather, Dennis US Army Aberdeen Proving Ground MD 21005 USA Univ Delaware Dept Elect & Comp Engn Evans Hall Newark DE 19717 USA

ISBN: (纸本)9781510600706

A novel photonic beam-former concept is discussed within the context of traditional radar design considerations. The beam-former concept has been proven for passive imaging applications1;however, the work presented herein discusses extension of the theory to an active sensing problem space. The paper concentrates on discussion of photonic beamspace beam-forming and its relation to existing Beam-Space array theory and closes with several observations of the application of the photonic beam-space receiver to a simulated radar scenario. The initial results presented highlight the photonic beam-former's ability to generate a full beam space for an arbitrary array size in real-time.

关键词： radar Photonics Beam-Space Beam-forming

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Pathfinder radar Development at Sandia National Laboratories 20

Pathfinder Radar Development at Sandia National Laboratories

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conference on radar sensor technology xx

作者： Castillo, Steven Sandia Natl Labs Airborne ISR Syst POB 5800 MS0532 Albuquerque NM 87185 USA

ISBN: (纸本)9781510600706

Since the invention of Synthetic Aperture radar imaging in the 1950's, users or potential users have sought to exploit SAR imagery for a variety of applications including the earth sciences and defense. At Sandia Laboratories, SAR R&D and associated defense applications grew out of the nuclear weapons program in the 1980's and over the years has become a highly viable ISR sensor for a variety of tactical applications. Sandia SAR systems excel where real-time, high-resolution, all-weather, day or night surveillance is required for developing situational awareness. This presentation will discuss the various aspects of Sandia's airborne ISR capability with respect to issues related to current operational success as well as the future direction of the capability as Sandia seeks to improve the SAR capability it delivers into multiple mission scenarios. Issues discussed include fundamental radar capabilities, advanced exploitation techniques and human-computer interface (HMI) challenges that are part of the advances required to maintain Sandia's ability to continue to support ever changing and demanding mission challenges.

关键词： Synthetic Aperture radar polarimetric real time digital radar human-machine interface SAR image feature extraction

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