Night Vision And Electronic Sensors Directorate Nvesd

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Night Vision And Electronic Sensors Directorate Nvesd

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Author :
language : en
Publisher:
Release Date : 1997

Night Vision And Electronic Sensors Directorate Nvesd written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Detectors categories.

Night Vision And Electronic Sensors Directorate Nveds

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Author :
language : en
Publisher:
Release Date : 1997

Night Vision And Electronic Sensors Directorate Nveds written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.

Sensor Grand Challenges An Nvesd Perspective

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Author :
language : en
Publisher:
Release Date : 1999

Sensor Grand Challenges An Nvesd Perspective written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

This report presents challenges for future sensor development from the perspective of the Night Vision and Electronics Sensor Directorate.

3rd Generation Thermal Imager Sensor Performance

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Author :
language : en
Publisher:
Release Date : 2006

3rd Generation Thermal Imager Sensor Performance written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

3rd Generation FLIR (3rd Gen) is defined as a dual band (MWIR and LWIR) thermal imager. It is targeted to be one of the principle sensor systems for the Army's Future Combat System (FCS), Stryker, and Airborne Reconnaissance System. In early 2005, the Night Vision and Electronic Sensors Directorate (NVESD) created a large scale project to research and quantify the potential benefits of a 3rd Gen FLIR. This research was partitioned up into multiple individual studies, each of which is focused on a particular technical area, i.e., topic, to quantify its impact on the performance of a 3rd Gen FLIR. The set of topics include long range target identification (ID), aided target recognition (AiTR), apparent high temperature (T) sources of clutter, target and background contrasts and signatures, conventional and urban search and detection, advanced signal processing, cold weather, atmospheric turbulence, sensor integration time, camouflage, spectral signature differences, smoke, pilotage, wet targets, laser susceptibility, and path radiance. Whenever possible and appropriate, actual MWIR and LWIR imagery were used as inputs in the applicable physics (or psycho-physics) models. Even though every attempt was made to partition a research project of this size and scope into individual, independent components of an n-dimensional parameter space, it was obvious that there were varying degrees of dependence amongst and between these topics. In each of these studies, specific benefit of 3rd Gen FLIR was assessed from either the direct or indirect impact upon target discrimination task performance.

U S Army Nvesd Mwir Polarization Research For Ground Targets

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Author :
language : en
Publisher:
Release Date : 2005

U S Army Nvesd Mwir Polarization Research For Ground Targets written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

Visual Acuity For High Contrast Tri Bar Targets Illuminated With Spectra Simulating Night Vision Goggle Nvg Displays And The No Moon Night Sky

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Author :
language : en
Publisher:
Release Date : 2010

Visual Acuity For High Contrast Tri Bar Targets Illuminated With Spectra Simulating Night Vision Goggle Nvg Displays And The No Moon Night Sky written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

This report presents two studies that measured unaided visual acuity using a 50-in square high-contrast U.S. Air Force (USAF) 1951 Tri-Bar chart viewed from 12 ft at luminance levels ranging from 0.00046 fL (much darker than a night vision goggle [NVG] display of an overcast starlight scene) to 21.5 fL (much brighter than a NVG display of a full-moon scene). To avoid visual noise artifacts, these studies did not use actual NVG displays. The studies were designed to support general modeling efforts at the U.S. Army Research Development and Engineering Command (RDECOM) Communications-Electronics Research Development and Engineering Center (CERDEC), Night Vision and Electronic Sensors Directorate (NVESD). For Study 1, the Tri-Bar chart was back-lit with a spectrum similar to the standard yellowish-green (P43) phosphor NVG display. In Study 2, the chart was back-lit with tungsten illumination, similar to a 2856 K blackbody spectrum. In addition to providing measures of unaided visual acuity, we introduced a new technique-the Green-appearance Scale-to determine the luminance levels at which participants transitioned from scotopic viewing of the Tri-Bar chart to mesopic viewing, and from mesopic viewing to photopic viewing. We describe this technique and present the data as part of the methodology and results of Study 1.

Overview Of Sensor Fusion Research At Rdecom Nvesd Recent Results On Vehicle Detection Using Multiple Sensor Nodes

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Author :
language : en
Publisher:
Release Date : 2003

Overview Of Sensor Fusion Research At Rdecom Nvesd Recent Results On Vehicle Detection Using Multiple Sensor Nodes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The US Army RDECOM CERDEC Night Vision & Electronic Sensors Directorate has a dynamic applied research program in sensor fusion for a wide variety of defense & defense related applications. This paper provides an overview of the on going research at NVESD related to fusing a mixture of active and passive sensors for countermine, dismounted & mounted soldiers, aviation and unattended ground sensor applications. Highlighted are new techniques in image registration and sensor fusion ion that enable the detection of moving vehicles with a network of image and acoustic sensors. A set of experiments was designed and conducted using a variety of vehicles and scenarios. The incremental value (in terms of error probability) added to the acoustic information by the image sensors (visible and infrared wavelength cameras) is assessed in combination with the fusion techniques themselves. The approach specifically accounts for the effects of location, speed, weather, and background (acoustic, visible, and infrared). Sensor fusion for detection and classification is preformed at both the sensor level and the feature level providing a basis for making tradeoffs between performance desired and resources required. Several classifier types are examined (parametric, nonparametric, learning). The combination of their decisions is used to make the final decision. Keywords: Tracking, fusion, sensor fusion, vehicle detection, detection, location.

Acoustic Detection From Aerial Balloon Platform

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Author :
language : en
Publisher:
Release Date : 2004

Acoustic Detection From Aerial Balloon Platform written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The US Army Research Laboratory (ARL) and US Army Night Vision and Electronic Sensors Directorate (NVESD) are leading the research and development in autonomous sensing and sensor networks for the Networked Sensors for the Future Force (NSfFF) and Future Combat System (FCS). With the emphasis being shifted to lighter and more mobile forces, ARL and NVESD have been collaborating and exploring various mobile platforms such as robotic vehicles and aerial platforms such as unmanned aerial vehicles (UAVs) and balloons. Our most immediate collaboration focuses on the use of acoustic sensors on small balloons and/or aerostats at several elevations and on the ground with the primary goals of: (i) investigate the acoustic sensing and detection ranges; (ii) acoustically cue IR imagers and/or video cameras; and (iii) explore the networking of elevated sensors and ground sensors for NSfFF. In this paper, we only focus on the first goal, the acoustic detection portion of the collaborative effort.

The Demining Support System

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Author : DoD Humanitarian Demining R & D Program (U.S.)
language : en
Publisher:
Release Date : 2007

The Demining Support System written by DoD Humanitarian Demining R & D Program (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Explosive ordnance disposal categories.

In 1995 the United States Department of Defense began to initiate research and development into cost-effective demining technologies. The Humanitarian Demining (HD) Program at Night Vision and Electronic Sensors Directorate (NVESD), Fort Belvoir is involved in developing, testing and evaluating technologies to: * clear, detect, mark and map landmines * protect individual deminers * clear vegetation * promote mine awareness. This program also leverages technology from other organizations and uses commercial off-the-shelf technology whenever possible for rapid development and field assessments. The goals of the HD program are to provide suitable technology to detect and clear all landmines, improve operator safety and provide special small and hand-held tools for operators.

Theresia Von Jesu

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Author :
language : en
Publisher:
Release Date : 1936

Theresia Von Jesu written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1936 with categories.