This report presents a study of the relative contributions of latent heat, heat capacity effects and oxygen dilution in the water mist suppression of a gaseous diffusion flame. The work is motivated by the urgent need to find an alternative to the banned halogen based fire suppressing agents. Water mist is a contending alternative agent especially in total flooding applications. A modified Wolfhard- Parker burner was used to establish a 2D methane air diffusion flame. Drops in flame temperature...
Topics: DTIC Archive, Ndubizu, C. C., NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC,...
Skin changes such as callosities and mycosis may be regarded as a risk factor for severe structural impairments including ulcers and osteomyelitis in patients suffering from diabetes. Increased temperature of the feet of diabetics is another frequent finding. We investigated the relationship between skin changes and areas of increased skin temperature recorded with an Infrared Scanner ACEMA 870. 76 patients who had type 2 diabetes longer than 5 years, were studied. A physical examination of...
Topics: DTIC Archive, Ammer, K, UNIVERSITY OF GLAMORGAN PONTYPRIDD (UNITED KINGDOM) SCHOOL OF COMPUTING,...
The performance of thermal imagers is generally tested by means of test targets, put in the focal plane of a collimator. For MRTD measurements bar targets are used with a certain frequency and variable temperature contrast. The zoomcollimator, described in this report provides a variable spatial frequency, which is more comparable to the range variation of a target in the terrain with certain size and temperature contrast. In the focal plane also a line source and a circular source with...
Topics: DTIC Archive, De Jong, A N, FYSISCH EN ELEKTRONISCH LAB TNO THE HAGUE (NETHERLANDS), *TARGET...
Cameras operating in the thermal infrared (mid-wave and long-wave IR) use a cold stop that is designed to match the exit pupil of the optics and thus avoid parasitic radiation or vignetting. For years, range operators have been using reflective telescopes, usually with photo-documentation film cameras. Along with the need to shift operation into the infrared comes a problem that (i) these telescopes do not have an exit pupil located at the IR camera cold stop, and (ii) most IR cameras have f/2...
Topics: DTIC Archive, Gat, Nahum, OPTO-KNOWLEDGE SYSTEMS INC TORRANCE CA, *TELESCOPES, *ZOOM LENSES,...
Three different innovative nondestructive evaluation technologies were developed and evaluated for the ability to detect fatigue cracks and corrosion hidden under painted aluminum panels. The three technologies included real-time ultrasound imaging, thermal imaging, and near-field microwave imaging. With each of these nondestructive inspection methods, subtasks were performed in order to optimize each methodology.
Topics: DTIC Archive, Lipetzky, Kirsten G, NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD,...
This paper will present the progress on AMRDEC's development of a cold background, flight motion simulator (FMS) mountable, emitter array based projector for use in hardware-in-the-loop systems simulation. The goal for this development is the ability to simulate realistic low temperature backgrounds for windowed/domed seekers operating in tactical and exo-atmospheric simulations. The projector has been developed to operate at -10 degrees Celsius in order to reduce the apparent background...
Topics: DTIC Archive, Cantey, Thomas M, OPTICAL SCIENCES CORP HUNTSVILLE AL, *LOW TEMPERATURE, *BACKGROUND,...
The first thermal imagery from the Spatially Enhanced Broadband Array Spectrograph System (SEBASS) was analyzed for target detection purposes. Data were acquired during Exercise WESTERN RAINBOW in October of 1995 with Aerospace Corporation's new instrument. SEBASS is a thermal infrared spectral imaging system which collects data in 128 wavelength bands from 7.8 to 13.4 micrometers. The system has 128 spatial pixels and a ground sample distance of 2.5 feet under the operating conditions of the...
Topics: DTIC Archive, Collins, Brian H., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *INFRARED DETECTORS,...
A novel improvement of two-dimensional decoys is presented, wherein light is diffusely scattered through translucent areas of the decoy when illuminated from behind, such that the effect of reflection from horizontal surfaces is simulated to an observer in front of the decoy. When illuminated in front, the same 2d decoy reflects light to the intended observer as would a completely opaque decoy. Thus, this flat representation of the 3d object has a dynamic component that changes with lighting...
Topics: DTIC Archive, Loyd, Jody S, TELEDYNE BROWN ENGINEERING HUNTSVILLE AL, *TWO DIMENSIONAL, *DECOYS,...
In the process of creating synthetic scenes for use in simulations/visualizations, texture is used as a surrogate to high spatial definition. For example, if one were to measure the location of every blade of grass and all of the characteristics of each blade of grass in a lawn, then in the process of composing a scene of the lawn, it would be expected that the result would appear real; however, because this process is excruciatingly laborious, various techniques have been devised to place the...
Topics: DTIC Archive, Bleiweiss, Max P., ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM, *IMAGE PROCESSING,...
The effects of weak energies, THz and ultrasound, on energetic materials, was studied experimentally using laser vibrational spectroscopies and time-resolved thermal imaging microscopy.
Topics: DTIC Archive, ILLINOIS UNIV CHAMPAIGN GRANTS AND CONTRACT ADMINISTRATION, *ENERGETIC PROPERTIES,...
This report describes thermal techniques to identify different types of materials in outdoor scenes. First, we present the model that we developed to calculate the temperature of materials. By applying this model, we show analyze how applying vision segmentation algorithms to thermal images allows for discriminating between materials such as rocks and sand. We then show how combining thermal and range information improves discrimination between occluding objects that are composed of the same...
Topics: DTIC Archive, Caillas, C, CARNEGIE-MELLON UNIV PITTSBURGH PA ROBOTICS INST, *OUTDOOR, *ROBOTICS,...
Topics: DTIC Archive, Krishnakumar, N, NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE...
This report examines the basic elements of a thermal imaging system. The four types of thermal imaging systems are described and the advantages and disadvantages of each are indicated.
Topics: DTIC Archive, Antonacos, John, ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY...
In spite of an immense increase in interest in helmet-mounted displays (HMDs) over the past two decades, there have been few studies on head motion while using HMDs in operational flight. Rotary-wing flight conducted using a number of HMD configurations has resulted in a head position database that will be useful in filling this void. Various analysis techniques have been applied to investigate characteristics of roll (tilt) head position distributions for a slalom flight maneuver for four...
Topics: DTIC Archive, Stelle, Jessica A, ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL, *POSITION(LOCATION),...
The ability to accurately predict the performance of FLIR systems has become critical to today's military. The current U.S. defense industry standard FLIR analysis model is FLIR92 by the U.S. Army's C2NVEO. The algorithm in FLIR92 for calculating target acquisition probabilities, called ACQUIRE, has several limitations in its design for calculating a target's characteristic dimension. This thesis develops a Dynamic Model to overcome these limitations. It incorporates a three dimensional view of...
Topics: DTIC Archive, Eaton, Jeffery P., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *FORWARD LOOKING INFRARED...
A new virtual thermal image-processing model that has been developed at the Naval Postgraduate School is introduced in this thesis. This visualization program is based on an earlier work, the Visibility MRTD model, which is focused on predicting the minimum resolvable temperature difference (MRTD). The MRTD is a standard performance measure for forward-looking infrared (FLIR) imaging systems. It takes into account thermal imaging system modeling concerns, such as modulation transfer functions...
Topics: DTIC Archive, Kenter, Yucel, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *IMAGE PROCESSING, *THERMAL...
The present program was the most ambitious and had as its primary objective the fabrication of an InGaAs resistive gate CCD with a long term goal of developing 1-3 micrometer InGaAs two dimensional imaging CCDs. The 1-3 micrometer band, at present, is ill-served for imaging. The existence of room temperature imager sensitive to this wavelength range is important for a wide variety of defense, scientific, and commercial applications. Operability at room temperature will allow the camera to be...
Topics: DTIC Archive, Olsen, Gregory H, SENSORS UNLIMITED INC PRINCETON NJ, *ROOM TEMPERATURE, *NEAR...
Several models have been proposed to predict the minimum resolvable temperature difference (MRTD) performance of second generation thermal imaging systems (TIS) which incorporate staring focal plane arrays. It has been suggested that these models are not accurate for predicting the performance of second generation staring focal plane arrays which have severe phasing or sampling characteristics not amenable to linear modulation transfer function analysis. A second problem with these models is...
Topics: DTIC Archive, Groen, Michael S., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *VISUAL PERCEPTION,...
This user manual provides an overview of the software functionality developed to support the empirical investigation of a simulated user interface for an Advanced Integrated Multi-sensor Surveillance (AIMS) system (formerly known as the Enhanced Low-Light Level Visible and Infrared Surveillance System - ELVISS). The AIMS system is an electro-optical imaging system being developed by Defence Research and Development Canada (DRDC) - Valcartier to enhance the capability of search and rescue (SAR)...
Topics: DTIC Archive, Schoenborn, Oliver, CAE PROFESSIONAL SERVICES OTTAWA (ONTARIO), *ELECTROOPTICS,...
The research presented in this report aims at elucidating the environmental factors that affect the spectro-polarimetric signatures of water and a dark-painted surface outdoors. We highlight the importance of thermal contrast between the object of interest and its optical background; explicitly present the analysis for four environmental scenarios (clear sky and dry atmosphere, clear sky and humid atmosphere, altostratus clouds, and cumulus clouds); and for each scenario, present the angular...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD COMPUTATIONAL AND INFORMATION SCIENCES...
An image based comparison of modeled infrared cameras in the medium-wave (MW) and longwave (LW) bands is done using the TARDEC Thermal Image Model (TTIM) and LOWTRAN7. A state-of-the-art staring focal plane array (FPA), a common module scanning FLIR, and a scanning dual-band sensor are modeled. The simulations using TTIM demonstrate the imaging performance of the cameras as well as the degradation caused by the atmosphere in the two bands. Atmospheric degradation to the image is simulated in...
Topics: DTIC Archive, Meitzler, Thomas, TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI,...
This system manual provides an overview of software developed to support the empirical investigation of a simulated user interface for an Advanced Integrated Multisensor Surveillance (AIMS) system (formerly known as the Enhanced Low-Light Level Visible and Infrared Surveillance System ELVISS). The AIMS system is an electro-optical imaging system being developed by Defence Research and Development Canada (DRDC) Valcartier to enhance the capability of search and rescue (SAR) crews to operate...
Topics: DTIC Archive, Schoenborn, Oliver, CAE PROFESSIONAL SERVICES OTTAWA (ONTARIO), *ELECTROOPTICS,...
Low image contrast limits the amount of information conveyed to the user With the proliferation of digital imagery and computer interface between man-and-machine, it is now viable to consider digitally enhancing the image before presenting it to the user, thus increasing the information throughput. This thesis explores the effect of the Contrast Limited Adaptive Histogram Equalization (CLAHE) process on night vision and thermal images With better contrast, target detection and discrimination...
Topics: DTIC Archive, Teo, Chek K, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *IMAGE PROCESSING, *DIGITAL...
Infrared pictures of a variety of ships have been reproduced by the Naval Air Development Center as by-products of an investigation of the capability of airborne, passive, infrared mapping devices for detecting effects produced on the surface of the water by submarines. These thermal pictures, which should be of value in the design of infrared-guided anti-ship missiles, provide semi-quantitative information on infrared radiation emitted as functions of position on the ships. Variations in the...
Topics: DTIC Archive, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA WARMINSTER United States, infrared...
Global Positioning Systems, thermal imaging scopes, satellite phones, and other electronic devices are critical to the warfighter in Forward Operating Environments. Many are battery operated and require charging. We used a Systems Engineering approach to compare existing portable energy systems and to specifically design a portable solar energy system for use tailored for a deployed military/combat unit. We considered ease of setup/teardown, power delivered weight, and many other factors that...
Topics: DTIC Archive, AIR FORCE ACADEMY COLORADO SPRINGS CO, *GLOBAL POSITIONING SYSTEM, *MILITARY...
We apply two multivariate image analysis techniques to several sets of spatially coincident, long-wave infrared (LWIR), polarimetric images to improve target contrast and/or aid in the identification of certain object features not present in the original image set. Principal component analysis (PCA) was used to obtain new representations of the scene that highlight target features based upon the variance of the variables used in the analysis. We show a representation of the scene that maintains...
Topics: DTIC Archive, Felton, Melvin, ARMY RESEARCH LAB ADELPHI MD COMPUTATIONAL AND INFORMATION SCIENCES...
Until recently no standard atmospheric propagation codes included the effects of polarization. Recently a research grade upgrade to MODTRAN (Zeisse, Nrad) has allowed the polarized case. This upgrade, called SEARAD, calculates the infrared polarization of sea surface radiance. Data available in the EOPACE data base were used for a direct comparison of the code prediction to the measurements. The data consist of polarized and unpolarized images of the R/V POINT SUR in the Long Wave Infrared...
Topics: DTIC Archive, Karavas, Panagiotis, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *RADIANCE, *INFRARED...
As a continuation of previous studies in microwave enhanced infrared (IR) detection of landmines at DRDC Ottawa, additional experiments were performed using a microwave source at 2450 MHz to illuminate buried inert antipersonnel and antitank landmines. Further experiments were performed for the first time using a microwave device at 915 MHz with an open waveguide. Infrared detection was accomplished using a FLIR A20M IR camera in the 8-12 mm region. An investigation of this method was done by...
Topics: DTIC Archive, Mende, Howard, DEFENCE RESEARCH AND DEVELOPMENT CANADAOTTAWA (ONTARIO), *INFRARED...
For defense purposes there is a need for all-day, all-night, all-weather vision systems to enable the performance of observation and identification tasks. In the ATHENA National Technology Project of the Dutch Ministery of Defense we developed a combined intensified and thermal imaging device for observation, target detection and navigation in conditions with low visibility. We also investigated the operational deployability of this system. The ATHENA system produces an image of which the...
Topics: DTIC Archive, Toet, A, TNO DEFENCE SECURITY AND SAFETY SOESTERBERG (NETHERLANDS), *AMPLIFIERS,...
This paper discusses Northrop Grumman's solution to the problems associated with existing methods for the generation of reference templates for Automatic Target Recognition (ATR) Systems. Reference templates are used by ATRs of sensor systems to provide sufficient definition of the target in order to autonomously detect, identify, and track the target. Existing methodologies typically rely on the expertise of the user to predict the characteristics of the target in the waveband of the sensor...
Topics: DTIC Archive, Helfrich-Stone, T., NORTHROP GRUMMAN CORP PICO RIVERA CA B-2 DIV, *TARGET...
Night vision and thermal images are extensively used in military operations, as they help in mission planning and executions tasks. Image fusion effectively combines information present in each type of image. This research explored two wavelet-based image fusion approaches for night vision and thermal images; namely wavelet transform fusion and region-based fusion. Morphological methods designed to improve the image segmentation step were considered to improve image contrast and a global image...
Topics: DTIC Archive, Neo, Tiong T, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *NIGHT VISION, *THERMAL IMAGES,...
This paper examines an inverse problem in thermal imaging, that of recovering a void in a material from its surface temperature response to external heating. Uniqueness and continuous dependence results for the inverse problem are demonstrated and a numerical method for its solution developed. This method is based on an optimization approach, coupled with a boundary integral equation formulation of the forward heat conduction problem. Some convergence results for the method are proved and...
Topics: DTIC Archive, Bryan, Kurt, INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON...
In 1990 and 1994, archaeologists from the Cultural Resources Research Center, U.S. Army Construction Engineering Research Laboratories (USACERL) investigated the Wright Company School of Aviation 1910 Hangar component of the Huffman Prairie Flying Field Site at Wright-Patterson Air Force Base, Ohio. The USACERL archaeological investigations were integrated with geophysical studies conducted by the U. S. Army Corps of Engineers Waterways Experiment Station (CEWES), and airborne remote sensing...
Topics: DTIC Archive, Babson, David W., CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL,...
The purpose of this grant was to purchase equipment to enable us to study the influence of people's beliefs about thermodynamics and the influence of those beliefs on their ability to interpret infra-red images. For this project, we purchased an Inframetrics Thermacam PM250 to collect thermal images. In addition, we purchased a Compaq Deskpro personal computer for processing the images. The computer was used to run a variety of images processing programs including Thermonitor. The Thermacam...
Topics: DTIC Archive, Markman, Arthur B., COLUMBIA UNIV NEW YORK DEPT OF PSYCHOLOGY, *PERFORMANCE(HUMAN),...
In this study, the use of multi narrow-band filters was explored to correlate or fuse information to improve detection and recognition for specific targets of interest. To fully understand the viability and limitations of narrow band filters in thermal imaging, laboratory test procedures were first designed to characterize thermal images using common performance parameters, particularly the Noise Equivalent Temperature Difference (NETD), the Modulation Transfer Function (MTF) and the Minimum...
Topics: DTIC Archive, Quek, Yew S, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *IMAGE PROCESSING, *NOISE,...
DRDC Valcartier has developed a multi-sensor surveillance system composed of an active imaging system (the Airborne Laser-Based Enhanced Detection and Observation System (ALBEDOS)) and a thermal Infrared (IR) imaging system. This system is called the Enhanced Low-light level Visible and Infrared Surveillance System (ELVISS). The purpose of the system is to enhance surveillance capability at night and under degraded weather conditions especially for Search and Rescue (SAR) operations. Throughout...
Topics: DTIC Archive, McFadden, Sharon M, DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA), *LOW LIGHT...
This is a description of an assortment of Infrared Radiometric, Spectral and Effectiveness Equipment used for measurement of the radiative output and effectiveness of assorted devices. These instruments are installed and routinely operated at this center and on field flight test. The contents describe some of the instrument parameters and measurement capability.
Topics: DTIC Archive, Douda, Bernard E, NAVAL SURFACE WARFARE CENTER CRANE DIV IN, *FOURIER TRANSFORMATION,...
We have performed a thermal simulation of an electronic module cooled by forced convection and compared the simulation to the results of a laboratory test of the module. We modeled the modules geometry and materials, and used the operating conditions of the laboratory experiment as inputs for the simulation. We found close agreement between the steady-state temperatures calculated in our model and the temperatures observed in the laboratory, validating our simulation methods.
Topics: DTIC Archive, Ovrebo,Gregory K, US Army Research Laboratory Adelphi United States, FINITE ELEMENT...
Polymer matrix composite mechanical properties have been shown to decrease significantly with the presence of thermal damage. For aerospace applications, this type of damage typically occurs as a result of exposure to elevated temperatures from localized heating, such as lightning strikes, exhaust wash, or improper maintenance/repair procedures. Mechanical testing has shown that this type of damage, known as incipient damage, is present even when no visible damage is observable and can cause...
Topics: DTIC Archive, Lindgren, Eric, AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND...
Detection of chemical vapors with a remote sensor is necessary for both military defense and civilian pollution control. The thermal imager is a natural instrument from which to build a chemical sensor since most chemical vapors of interest are spectrally active in its operating wavelength range. A system has been designed to place a chemical detection capability as an adjunct function in a military thermal imager. An additional detector array, which is spectrally filtered at the focal plane,...
Topics: DTIC Archive, Althouse, Mark L G, CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN...
Predictions of atmospheric transmittance in desert aerosol environments using MODTRAN code diverge significantly from measured data. Good prediction of the desert particulate size distribution is required in order to predict atmospheric scattering and absorption parameters. It is also essential to the prediction of the aerosol atmospheric modulation transfer function which is often the dominant component of the overall atmospheric MTF. Recently an effort to predict statistics but not size...
Topics: DTIC Archive, Dror, I., BEN-GURION UNIV OF THE NEGEV BEERSHEBA (ISRAEL), *INFRARED IMAGES,...
An ever-present problem in analyzing thermal images for target signatures is the influence of atmospheric effects in the signature observed at significant range. The compensation for these effects, mostly atmospheric absorption and scattering and path radiance requires accurate knowledge of the meteorological parameters for the area involved at the time of the measurements. Based both on infrared image files taken during the Electro-optical Propagation Assessment in Coastal Environments...
Topics: DTIC Archive, Tsustsui, Roberto, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *TARGET SIGNATURES,...
Minimum Resolvable Temperature Difference (MRTD) measurement has long been used to describe the performance of thermal imaging systems Computer models such as U,S Army's FLIR92, that were developed to predict the MRTD, were reported to have deficiencies in dealing with sampling and aliasing effects, The models also include assumptions regarding the observer recognition process and therefore cannot predict the MRTD of an imager that incorporates an objective automatic target recognition device...
Topics: DTIC Archive, Celik, Mustafa, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *COMPUTER PROGRAMS, *FORWARD...
While planar laser-induced-fluorescence (PLIF) imaging of aerodynamic and combustion flows has developed enormously since its inception in the early 1980s, the ability to directly capture the dynamics of unsteady and/or turbulent phenomena at high speed has been constrained by the difficulty of generating high-repetition-rate, broadly wavelength-tunable ultraviolet radiation with sufficient individual pulse energy. However, sources with all these characteristics have now been made possible by...
Topics: DTIC Archive, Jiang, Naibo, OHIO STATE UNIV COLUMBUS DEPT OF MECHANICAL ENGINEERING AND CHEMISTRY,...
Predictions of atmospheric transmittance in desert aerosol environments using MODTRAN code diverge significantly from measured data. Good prediction of the desert particulate size distribution is required in order to predict atmospheric scattering and absorption parameters. It is also essential to the prediction of the aerosol atmospheric modulation transfer function which is often the dominant component of the overall atmospheric MTF. Recently an effort to predict statistics but not size...
Topics: DTIC Archive, Dror, I., BEN-GURION UNIV OF THE NEGEV BEERSHEBA (ISRAEL), *INFRARED IMAGES,...
We have developed a high-resolution, high-speed InSb Focal Plane Array Imager which was built and delivered by Indigo Systems, Inc., of Santa Barbara, CA for use in research and development of thermal wave imaging and nondestructive inspection (NDE) aircraft structures. The design team included Indigo Engineers and faculty from Wayne State. The imager was designed with features intended specifically for use in hangar and field conditions. It includes a sunlight readable monitor, and a 50 foot...
Topics: DTIC Archive, Han, Xiaoyan, WAYNE STATE UNIV DETROIT MI OFFICE OF RESEARCH AND SPONSORED PROGRAMS,...
This is the final report on a SERDP research project whose focus is the identification of specific combinations of remote sensors and data integration methods for the detection, identification, and interpretation of cultural resources in various environments and archaeological circumstances. The extensive suite of sensor technologies employed for this task include magnetometry, magnetic susceptibility, electrical resistivity, electromagnetic conductivity, ground penetrating radar, aerial...
Topics: DTIC Archive, Kvamme, Kenneth, ARKANSAS UNIV FAYETTEVILLE DEPT OF ANTHROPOLOGY, *HISTORIC SITES,...
A polarization-sensitive thermal imager has been assembled using a quantum-well infrared photodetector (QWIP) focal plane array (FPA) with peak responsivity in the long-wave infrared (LWIR) spectral band near 9 micrometers. Polarization-dependent responsivity is achieved by etching linear gratings onto each pixel during QWIP FPA fabrication, with adjacent pixels having orthogonal grating orientation. The direct integration of the gratings with the pixels eliminates all pixel registration errors...
Topics: DTIC Archive, Van Anda, James, DIGITAL IMAGING INC APOPKA FL, *POLARIZATION, *INFRARED DETECTORS,...
In May of 1997, the Turkish Military issued a Request for Proposal for the purchase of 145 attack helicopters. Turkey has chosen Bell Helicopter's KingCobra as its attack helicopter. The major difference between the USMC version of AH-1Z and the Turkish version KingCobra is the Targeting and Fire Control System. Bell Helicopter Textron has chosen Lockheed Martin to develop and build a new targeting system, the Target Sight System (TSS). The TSS will contain Lockheed Martin's 3-5 micrometers...
Topics: DTIC Archive, Reyhan, Gokhan L, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *ATTACK HELICOPTERS,...
Previous measurements have demonstrated that a polarization filter can increase ship-background temperature contrast in the infrared, while decreasing the received radiance. Application of this technique to increasing range for detection or recognition of ship targets is being investigated through detection range modeling for a generic FLIR sensor. Laboratory measurements have been made of effective Minimum Resolvable Temperature Difference (MRTD) of a serial-scan 8-12 micrometers sensor for...
Topics: DTIC Archive, Guimaraes, Edson F., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *FORWARD LOOKING INFRARED...
