Development Trends of Infrared Focal Plane Array Detectors

2020 ◽  
Vol 22 (9) ◽  
pp. 500-510
Author(s):  
N.A. Kulchitsky ◽  
◽  
A.V. Naumov ◽  
V.V. Startsev ◽  
◽  
...  
Keyword(s):  
High Speed ◽  
Night Vision ◽  
3D Images ◽  
Optical Signals ◽  
Array Detectors ◽  
Military Applications ◽  
Thermal Imagers ◽  
The Military ◽  
Development Paradigm ◽  
Thermal Imaging Equipment

Since its inception, the market for infrared (IR) thermal imaging equipment has grown, primarily, due to its military applications. Today, the military sector still provides some growth for the market, but its development paradigm has changed. Now the main growth in the market is provided by the sectors of civil and medical thermography, security and fire surveillance, personal night vision systems and local security niches (municipal, private, etc.). The devices using thermal imagers make it possible to detect in conditions of poor visibility, to detect people with high temperature in the crowd. In the last decade, a number of new directions and trends have been outlined in infrared photoelectronics. They are associated with increasing the resolution of systems, improving methods for recording ultra-weak optical signals, creating high-speed and multispectral systems, forming infrared 3D images According to forecast of Maxtech International (USA) and today's estimates of the authors, the market for infrared systems (civil and military) amounted to 10.5 billion dollars in 2017, and could reach 20 billion dollars by 2025. Due to the pandemic, we have restated the Maxtech International's forecasts upwardly for the medium term.

Words, The Magic Kingdom

1996 ◽  
Author(s):  
Harvey S. Wiener
Keyword(s):  
Common Good ◽  
High Speed ◽  
Motor Vehicle ◽  
Life Forms ◽  
Common Ownership ◽  
Wheel Drive ◽  
Actual Meaning ◽  
The Many ◽  
Four Wheel Drive ◽  
The Military

When Alice faces the extraordinary Wonderland notions of saying what you mean and meaning what you say, she confronts language's great potential and disappointment. Words should, but do not always, mean what they say; and we who use them do not always produce what we mean. If only we could point to a direct correspondence between each word and only one exact meaning! Reading would simplify in a flash. Ah, but what we might gain in exactness and dazzling clarity, surely we would lose in flexibility, nuance, suggestiveness, and contextual richness. It's good that words have such a wide range of meanings and uses; as such they enrich our capabilities as earths highest life forms and its most competent communicators. Knowing the possibilities of language, understanding the many qualities of words and how our language depends on them, can enhance your child's attempts to determine meaning from print. In the long climb up the mountain to word mastery, a major feature of language that you can help your youngster understand is that words often mean more than they say. Certainly, words have denotative meanings. That is, words have exact definitions that you could check easily in a dictionary. A jeep is a heavy-duty, four-wheeled vehicle. A communist is someone who believes in a social and political system characterized by common ownership and labor organized for the common good. A frigate is a high-speed, medium-sized war vessel of the 17th, 18th, and 19th centuries. Yet each of these words has connotative meanings as well. What a word connotes is what it suggests or implies beyond its actual meaning—including the associations and feelings aroused by the word. A jeep is more than a motor vehicle with four-wheel drive; its connection with the military and rugged outdoor life suggests certain associations—rough riding, speed, even danger perhaps. Your son or daughter might like to ride to school in a jeep just for the fun of it, but you'd have 'been puzzled (to say nothing of your parents!) if your date for the senior prom honked the jeep horn outside your front door when he arrived to pick you up.

Expanded Beam Fiber Optic Connectors Increase Optical Link Margin

2015 ◽  
Vol 2015 (1) ◽  
pp. 000609-000615 ◽  
Author(s):  
John Mazurowski
Keyword(s):  
Optical Fibers ◽  
High Speed ◽  
Fiber Optic ◽  
Physical Contact ◽  
Harsh Environments ◽  
Multimode Fiber ◽  
Optical Signals ◽  
Optical Link ◽  
Link Margin ◽  
Temperature Ranges

Present fiber optic connections need to align two or more optical fibers to accuracies of microns (multimode fiber) and tenths of a micron (single more fiber). For connections in rugged applications, consisting of wide temperature ranges, substantial vibration, or in the presence of contaminants, the alignment of normal physical contact connections becomes even more difficult. New expanded beam connectors make fiber optic connections more durable, and help stabilize the transmission of high speed optical signals between systems, boxes, boards, and devices in these harsh environments.

Military Applications of Adaptive Training Technology

2008 ◽  
pp. 304-347 ◽  
Author(s):  
James E. McCarthy
Keyword(s):  
Case Studies ◽  
Interactive Multimedia ◽  
Intelligent Tutoring ◽  
Technology Enhanced Learning ◽  
Multimedia Instruction ◽  
Comprehensive Review ◽  
Adaptive Training ◽  
Military Applications ◽  
The Military ◽  
Enhanced Learning

This chapter provides an overview of the use of adaptive training technology within the military domain. Throughout the chapter, we will discuss the use of intelligent tutoring, adaptive interactive multimedia instruction, and their combination to form closed-loop adaptive training. Frequently, the discussion of a particular approach will be illustrated with one or more case-studies. Moreover, we will explore impediments to widespread adoption of these interventions throughout the military, methods to overcome these impediments, and the migration of this technology into other domains. We will conclude by summarizing trends that are likely to characterize on-going development. Rather than providing a comprehensive review of technology-enhanced learning in the military, which is likely to be outdated before it is published, the author hopes that this illustrative review will open new avenues of thought for researchers, developers, and purchasers of these systems.

scholarly journals ARTIFICIAL NEURAL NETWORKS BASED SLEEP MOTION RECOGNITION USING NIGHT VISION CAMERAS

2004 ◽  
Vol 16 (02) ◽  
pp. 79-86 ◽  
Author(s):  
CHUNG-HSIEN KUO ◽  
FANG-CHUNG YANG ◽  
MING-YUAN TSAI ◽  
MING-YIH LEE
Keyword(s):  
Neural Networks ◽  
High Speed ◽  
Body Position ◽  
Body Movement ◽  
The Body ◽  
Night Vision ◽  
Ann Model ◽  
Motion Recognition ◽  
Video Frames ◽  
Artificial Neural

The body movement is one of the most important factors to evaluate the sleep quality. In general, the sleep motion is hardly investigated, and it must take a long time to observe the motion of the patient in terms of a pre-recoded video storage media with high speed playing. This paper proposes an image-based solution to recognize the sleep motions. We use the contact free and IR-based night vision camera to capture the video frames during the sleep of the patient. The video frames are used to recognize the body positions and the body directions such as the “body up”, “body down”, “body right”, and “body left”. In addition to the image processing, the proposed artificial neural network (ANN) sleep motion recognition solution is composed of two neural networks. These two neural networks are organized as in a cascade configuration. The first ANN model is used to identify the body position features from the images; and the follower ANN model is constructed based on the features that are identified by the first ANN model to recognize the body direction. Finally, the implementations and the practical results of this work are all illustrated in this paper.

scholarly journals Adaptation of a Small Commercial Fan Jet Trainer for Military Applications

1990 ◽  
Author(s):  
D. I. Boyd
Keyword(s):  
Field Experience ◽  
Development Program ◽  
Test Facility ◽  
Special Test ◽  
Design Features ◽  
Reliable Service ◽  
Military Applications ◽  
History Of ◽  
The Military ◽  
Military Combat

The JTI5D-4 engine is a successful small fan jet with a history of reliable service in fast, economical executive jet aircraft. This paper describes the unique design features which were necessary to convert it to the military combat trainer role, together with the associated development program. It includes details of a special test facility constructed to simulate aerobatic flight conditions, and discusses some aspects of field experience in a single engine trainer application.

scholarly journals Modified Energy Efficient with ACO Routing Protocol for MANET

2021 ◽  
Vol 12 (2) ◽  
pp. 1739-1745
Author(s):  
Uppalapati Srilakshmi, Et. al.
Keyword(s):  
Routing Protocol ◽  
Energy Efficient ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Path Selection ◽  
Delivery Ratio ◽  
Military Applications ◽  
Optimum Path ◽  
Mobile Ad Hoc ◽  
The Military

Due to the specific design of the network upon the requirements of the demands as well as the situation at which the setting up of a physical network is impossible, a significant role is played by mobile ad-hoc network (MANET) in the applications of military. Various critical tasks like robust & dynamic military workstations, devices as well as smaller sub-networks within the battle field are handled by the presented network type controls the infrastructure less communication. A highly demand of the efficient routing protocol’s design is existing which ensures safety as well as reliability to transmit the extremely vulnerable as well as the secret military data within the defense networks. The designing of an energy efficient layer routing protocol within the network on behalf of the military applications is done in this method and the simulation is done with the help of a novel cross layer approach of design for increasing the reliability as well as the lifetime of the network. However, the optimum path selection is not allowed by PDO-AODV technique. Therefore, a novel ACO-DAEE (Ant colony optimization with delay aware energy efficient) to select an optimum path as well as to mitigate the delay time within the network system is proposed. Maintaining the optimum paths within the network while transmitting the data effectively is the major objective. With respect to packet delivery ratio, end to end delay, and throughput, it is indicated by the simulation outputs that the performance of ACO-ADEE is quite good. The efficiency of this technique is verified in the simulation outcomes using NS2 software.

scholarly journals An Intelligent Gain based Ant Colony Optimisation Method for Path Planning of Unmanned Ground Vehicles

2019 ◽  
Vol 69 (2) ◽  
pp. 167-172 ◽  
Author(s):  
Sangeetha Viswanathan ◽  
K. S. Ravichandran ◽  
Anand M. Tapas ◽  
Sellammal Shekhar
Keyword(s):  
Path Planning ◽  
Optimal Path ◽  
Computation Time ◽  
Ant Colony ◽  
Ant Colony Optimisation ◽  
Ground Vehicles ◽  
Optimal Path Planning ◽  
Military Applications ◽  
The Military ◽  
Reduction Cost

 In many of the military applications, path planning is one of the crucial decision-making strategies in an unmanned autonomous system. Many intelligent approaches to pathfinding and generation have been derived in the past decade. Energy reduction (cost and time) during pathfinding is a herculean task. Optimal path planning not only means the shortest path but also finding one in the minimised cost and time. In this paper, an intelligent gain based ant colony optimisation and gain based green-ant (GG-Ant) have been proposed with an efficient path and least computation time than the recent state-of-the-art intelligent techniques. Simulation has been done under different conditions and results outperform the existing ant colony optimisation (ACO) and green-ant techniques with respect to the computation time and path length.

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