Browse Topic: Surveillance

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Nano-UAV SystemsTBMG-4644609/01/2022
Teledyne FLIR Defense Elkridge, MD 781-801-6161
Design and Parametric Investigations on Various Propellers for Nature Inspired Unmanned Amphibious Vehicle2022-26-117405/26/2022
Unmanned Amphibious Vehicle (UAV) is an integrative working environments based vehicle, which doesn’t allocate the place for onboard pilots. Mostly, unmanned amphibians have been controlled through pre-provided algorithms in the predestined paths. Aerodynamic and hydrodynamic working conditions are the compositions of aforesaid integrative environments, wherein the possible lifespan affecting failure of UAV may chance to happen in a high manner. Thus, the multidisciplinary investigation on UAV and it's every component needs to be done in order to pick the suitable UAV parts for both missions executing conditions. This work deals the comprehensive computational investigations on a different number of blades equipped propellers for the proposed cum nature-inspired UAV under aerodynamic and hydrodynamic loading conditions. Three different propellers are uniquely constructed based on the aerodynamic environment reference with the guidance of analytical formulae and thereafter modeling
R, Vijayanandh, Mathaiyan, Vijayakumar, Raji, Arul Prakash, Madasamy, Senthil Kumar, Gnanasekaran, Raj Kumar
All Environment (AE) Unmanned Aircraft SystemTBMG-3985809/01/2021
AeroVironment Simi Valley, CA 805-520-8320
GUIDANCE FOR DISTRIBUTED RADIO ARCHITECTURESARINC678 (Current)07/15/2021
The purpose of this document is to evaluate Communication, Navigation, and Surveillance (CNS) Distributed Radio architectures and the feasibility of distributing the RF and systems processing sections to ensure the following: Reduce cost of equipment Reduce Size, Weight, and Power (SWaP) Ease of aircraft integration Growth capability built into the design Maintain or improve system availability, reliability, and maintainability It provides a framework to determine whether it is feasible to develop ARINC Standards that support CNS distributed radio architectures.
Airlines Electronic Engineering Committee
Detection with Quantum Radar20AERP08_0608/01/2020
A new radar prototype utilizes quantum entanglement as a method of object detection. Quantum entanglement is a physical phenomenon where two particles remain inter-connected, sharing physical traits regardless of how far apart they are from one another. Scientists from the Institute of Science and Technology Austria (IST Austria) - along with collaborators from the Massachusetts Institute of Technology (MIT), the University of York (UK), and the University of Camerino, Italy - have demonstrated a new type of detection technology called “microwave quantum illumination” that utilizes entangled microwave photons as a method of detection. The prototype, also known as a “quantum radar,” is able to detect objects in noisy thermal environments where classical radar systems often fail.
WMD Detection TechnologyTBMG-3736908/01/2020
BAE Systems Burlington, MA 781-273-3388
Battle Command SystemTBMG-3710106/01/2020
Northrop Grumman Corp. Falls Church, VA 703-280-2900
Covariance and Uncertainty Realism in Space Surveillance and TrackingTBMG-3709906/01/2020
The characterization of uncertainty in the estimate of the state of a resident space object is fundamental to many space surveillance tasks including data association, uncorrelated track (UCT) resolution, catalog maintenance, sensor tasking and scheduling, as well as space situational awareness (SSA) missions such as conjunction assessments and maneuver detection. Generally, uncertainties are classified as either aleatoric, epistemic, or a mixture of both. Aleatoric uncertainty is the natural randomness or physical variability present in the system or its environment and is thus statistical in nature. In contrast, epistemic uncertainty is uncertainty that is due to limited data or knowledge.
Covariance and Uncertainty Realism in Space Surveillance and Tracking20AERP06_0806/01/2020
Characterizing uncertainty in estimating the state of a resident space object is one of the fundamentals of many space surveillance tasks. Air Force Space Command, Peterson, Colorado The characterization of uncertainty in the estimate of the state of a resident space object is fundamental to many space surveillance tasks including data association, uncorrelated track (UCT) resolution, catalog maintenance, sensor tasking and scheduling, as well as space situational awareness (SSA) missions such as conjunction assessments and maneuver detection. Generally, uncertainties are classified as either aleatoric, epistemic, or a mixture of both. Aleatoric uncertainty is the natural randomness or physical variability present in the system or its environment and is thus statistical in nature. In contrast, epistemic uncertainty is uncertainty that is due to limited data or knowledge. With respect to some terms, covariance realism means that the uncertainty in the state of an object can be
Towed Array Sonar SystemTBMG-3680905/01/2020
Givat Shmuel, Israel +972-3-531-3333
UAS Interceptor SystemTBMG-3680805/01/2020
RAFAEL Advanced Defense Systems LTD. Haifa, Israel +972 73 335 4444
Automatic Drone Detection SystemTBMG-3606002/01/2020
Tektronix Beaverton, OR 1-800-833-9200
EO/IR Maritime PayloadTBMG-3535210/01/2019
CONTROP Precision Technologies Ltd. Lanham, MD 571-331-0042
Autonomous Multi-Sensor Maritime Awareness SystemTBMG-3536410/01/2019
BIRD Aerosystems Herzliya, Israel
Defeating Commercial Drone Threats with Open-Source SDRTBMG-3535310/01/2019
It’s nearly impossible to look at technology news without seeing an article about drones. Whether detailing how Amazon wants to use drones to deliver packages or revealing amazing aerial video of drones following Olympic snow-boarders, commercial drones are ubiquitous. Drone emergence has benefited many applications including sports broadcasting and wildlife preservation wilderness surveys. Offering powerful, intelligent software, drones are becoming less expensive and easier to use, with substantial operating range.
Spatiotemporal Imaging Exploiting Structured Sparsity19AERP09_0709/01/2019
Overcoming the conventional limits of spatiotemporal imaging by applying compressed sensing and sparse representations to reduce the amount of data acquired while maintaining high image resolution. Air Force Research Laboratory, APO AP 96338-5002 Spatiotemporal imaging contains a large class of imaging problems, which involve collecting a sequence of data sets to resolve both the spatial and temporal (or spectral) distributions of some physics quantity. This capability is exploited in numerous different fields such as remote sensing, security surveillance systems, astronomical imaging, and biomedical imaging. One typical example is hyperspectral imaging, which is a powerful technology for remotely inferring the material properties of the objects in a scene of interest. Ultrasonic and thermal imaging are other important examples of spatiotemporal imaging where high spatial resolution is needed for urban planning, military planning, intelligence and disaster monitoring and evaluation
Editorial19AVEP05_0105/01/2019
AVs, data and ‘surveillance capitalism’ I finally hit my limit after seeing a Twitter post-from, almost paradoxically, a privacy engineer at Google-showing a taxi cab in Asia with a passenger-area screen announcing it was employing facial recognition “to deliver the most optimized content” to the rider. “The image data is discarded immediately,” the little tablet professed.
Visnic, Bill
Video EncodersTBMG-3413104/01/2019
Delta Digital Video Horsham, PA 215-657-5270
Naval Surveillance SystemTBMG-3412404/01/2019
CONTROP Precision Technologies Ltd. Hod Hasharon, Israel +972-9-744-0661
Micro-Mirror Optical Tracking and Ranging SystemTBMG-3368602/01/2019
An innovative optical sensing and tracking system was designed to detect, track, and determine object distance and direction in a wide, full, solid angle (160 × 160°) with an extremely high spatial resolution (0.5°). A key design feature is the laser beam steering system comprised of micro-mirrors that spin and tilt synchronously to steer the beam across a predetermined scanning angle and interval in a conically shaped scan pattern.
Algorithm Enables Drones to Work in a Coordinated ApproachTBMG-3312510/01/2018
An algorithm was developed that enables a team of unmanned aerial vehicles (UAVs) to communicate and work toward a common goal. The tool could be used to improve security or capture images simultaneously over a large area.
Military Vehicle Situational Awareness SystemTBMG-3301510/01/2018
Computech International (CTI) Tikva, Israel +972-3-9211110
The Placement of Digitized Objects in a Point Cloud as a Photogrammetric Technique09-06-02-000708/08/2018
The frequency of video-capturing collision events from surveillance systems are increasing in reconstruction analyses. The video that has been provided to the investigator may not always include a clear perspective of the relevant area of interest. For example, surveillance video of an incident may have captured a pre- or post-incident perspective that, while failing to capture the precise moment when the pedestrian was struck by a vehicle, still contains valuable information that can be used to assist in reconstructing the incident. When surveillance video is received, a quick and efficient technique to place the subject object or objects into a three-dimensional environment with a known rate of error would add value to the investigation. In addition, once the objects have been placed into the three-dimensional environment, the investigator would then be able to observe the physical evidence and environment from any perspective, including viewing and measuring what cannot be seen in
Harrington, Shawn, Lebak, Gabriel
5 Ws of the PHADE Addressing SystemTBMG-3248708/01/2018
PHADE could be used by government agencies to enhance public safety; for example, the government can deploy cameras in high-crime or high-accident areas, and warn specific users about potential threats. PHADE also can be used in places such as museums, where visitors can receive messages with information about the artifacts or exhibits they are viewing. It could be implemented in shopping malls to provide consumers with digital product information or coupons.
Tech Briefs: June 201818AERP0606/01/2018
Beyond VMEbus - A New Concept Taming the Thermal Behavior of Solid-State Military Lasers Solving the Challenge of Thermal Design in Aerospace Electronics Improving Component Life in Abrasive, Corrosive Aerospace Environments New Pulse Analysis Techniques for Radar and EW Validation of Ubiquitous 2D Radar Converting Existing Copper Wire Firing System to a Fiber-Optically Controlled Firing System for Electromagnetic Pulsed Power Experiments Technological improvements make pulsed-power experiments with gunpowder- or air-driven guns safer. Low-Cost Ground Sensor Network for Intrusion Detection COTS-based system could provide increased level of security with less manpower. In-Network Processing on Low-Cost IoT Nodes for Maritime Surveillance Commercially available system of distributed wireless sensors could increase the Navy's intelligence collection footprint. Co-Prime Frequency and Aperture Design for HF Surveillance, Wideband Radar Imaging, and Nonstationary Array Processing Developing
Videogrammetry in Vehicle Crash Reconstruction with a Moving Video Camera2018-01-053204/03/2018
In an accident reconstruction, vehicle speeds and positions are always of interest. When provided with scene photographs or fixed-location video surveillance footage of the crash itself, close-range photogrammetry methods can be useful in locating physical evidence and determining vehicle speeds and locations. Available 3D modeling software can be used to virtually match photographs or fixed-location video surveillance footage. Dash- or vehicle-mounted camera systems are increasingly being used in light vehicles, commercial vehicles and locomotives. Suppose video footage from a dash camera mounted to one of the vehicles involved in the accident is provided for an accident reconstruction but EDR data is unavailable for either of the vehicles involved. The literature to date describes using still photos to locate fixed objects, using video taken from stationary camera locations to determine the speed of moving objects or using video taken from a moving vehicle to locate fixed objects
Manuel, Emmanuel Jay, Mink, Richard, Kruger, Daniel
Nett WarriorTBMG-2879104/01/2018
Nett Warrior is the US Army's next generation US integrated soldier system that replaces Land Warrior. It is designed to be an integrated dismounted situational awareness and mission command system for use during combat operations that enables fast and accurate decision-making during tactical operations.
Counter UAV SystemTBMG-2879004/01/2018
SteekRock UAV London, UK +44 (0) 20 7491 8186
Integrated Lab-on-a-Chip Uses Smartphone to Detect Multiple PathogensTBMG-2814001/01/2018
Infectious diseases remain the world’s top contributors to human death and disability, and with recent outbreaks of Zika virus infections, there is a keen need for simple, sensitive, and easily translatable point-of-care tests. Since Zika virus infection shares symptoms with other diseases such as Dengue and Chikungunya, quick, accurate diagnosis is required to differentiate these infections and determine the need for aggressive treatment or quarantine.
Sensitivity Simulation of Compressed Sensing Based Electronic Warfare Receiver Using Orthogonal Matching Pursuit AlgorithmTBMG-2764710/01/2017
Electronic Intelligence Receiver (ELINT) is an important component in electronic warfare (EW) and layer sensing. The information it provides by constant surveillance can be used to detect, track and classify signals across the electromagnetic spectrum. The proper identification and reaction to the threat can avoid disaster and assure spectrum dominance for Air Force systems.
Ruggedized Computer Rack CasesTBMG-2765210/01/2017
Verotec Inc Manchester, NH 603-821-9921
Method to Determine Instantaneous Speeds and Acceleration from Surveillance Video2016-01-146904/05/2016
High image quality video surveillance systems have proliferated making it more common to have collision-related video footage that is suitable for detailed analysis. This analysis begins by using variety of methods to reconstruct a series of positions for the vehicle. If the frame rate is known or can be estimated, then the average travel speed between each of those vehicle positions can be found. Unfortunately with video surveillance systems, the frame rates are typically low and the vehicle may be hidden from view for multiple frames. As a result there are often relatively large time steps between known vehicle positions and the average speed between known positions becomes less useful. The method outlined here determines the instantaneous speed and acceleration time history of the vehicle that was required for it to arrive at the known positions, at the known times. The position time history is reviewed and approximately broken in phases of constant acceleration (whether negative
Luker, Craig
Communication, Navigation and Surveillance Performance Criteria for Safety-Critical Avionic Systems2015-01-254409/15/2015
Avionic system developers are currently working on innovative technologies that are required in view of the rapid expansion of global air transport and growing concerns for environmental sustainability of aviation sector. Novel Communication, Navigation and Surveillance (CNS) system designs are being developed in the CNS/Air Traffic Management (CNS/ATM) and Avionics (CNS+A) context for mission-and safety-critical applications. The introduction of dedicated software modules in Next Generation Flight Management Systems (NG-FMS), which are the primary providers of automated navigation and guidance services in manned aircraft and Remotely-Piloted Aircraft Systems (RPAS), has the potential to enable the significant advances brought in by time and trajectory based operations. High-integrity, high-reliability and all-weather services are required in the context of four dimensional Trajectory Based Operations / Intent Based Operations (TBO/IBO). The NG-FMS and the Next Generation Air Traffic
Ramasamy, Subramanian, Sabatini, Roberto
Investigation of GNSS Integrity Augmentation Synergies with Unmanned Aircraft Sense-and-Avoid Systems2015-01-245609/15/2015
Global Navigation Satellite Systems (GNSS) can support the development of low-cost and high performance navigation and guidance architectures for Unmanned Aircraft Systems (UAS) and, in conjunction with suitable data link technologies, the provision of Automated Dependent Surveillance (ADS) functionalities for cooperative Sense-and-Avoid (SAA). In non-cooperative SAA, the adoption of GNSS can also provide the key positioning and, in some cases, attitude data (using multiple antennas) required for automated collision avoidance. A key limitation of GNSS for both cooperative (ADS) and non-cooperative applications is represented by the achievable levels of integrity. Therefore, an Avionics Based Integrity Augmentation (ABIA) solution is proposed to support the development of an Integrity-Augmented SAA (IAS) architecture suitable for both cooperative and non-cooperative scenarios. The performances of this IAS architecture were investigated in representative simulation case studies by
Sabatini, Roberto, Moore, Terry, Hill, Chris, Ramasamy, Subramanian
Spy Blimps Revisited: A Performance Comparison between Two Competing Approaches2015-01-257909/15/2015
While operational airships globally number in the low dozens, interest in buoyant or semi-buoyant platforms continues to arouse imaginations of commercial and military planners and developers alike. The airship-as-advertisement business model is the only model that has proven sustainable on any scale since the crash of the initially successful LZ-128 Hindenburg effectively ended regular passenger and cargo transport by airship, and the 1962 termination of the US Naval airship program terminated regular large-scale surveillance from airships. Efforts in the US and Japan during the 2000's to have a self-sustaining sight-seeing business model using the modern semi-rigid Zeppelin NT both failed. In theory, the buoyant nature of airships provides compelling endurance and cost-per-ton-mile capability which fills a niche arguably not currently occupied by other modes of transportation. The potential endurance capability motivated the US Military to fund two nearly-simultaneous airship
Buerge, Brandon Todd
Automated ATM System Enabling 4DT-Based Operations2015-01-253909/15/2015
As part of the current initiatives aimed at enhancing safety, efficiency and environmental sustainability of aviation, a significant improvement in the efficiency of aircraft operations is currently pursued. Innovative Communication, Navigation, Surveillance and Air Traffic Management (CNS/ATM) technologies and operational concepts are being developed to achieve the ambitious goals for efficiency and environmental sustainability set by national and international aviation organizations. These technological and operational innovations will be ultimately enabled by the introduction of novel CNS/ATM and Avionics (CNS+A) systems, featuring higher levels of automation. A core feature of such systems consists in the real-time multi-objective optimization of flight trajectories, incorporating all the operational, economic and environmental aspects of the aircraft mission. This article describes the conceptual design of an innovative ground-based Air Traffic Management (ATM) system featuring
Gardi, Alessandro, Sabatini, Roberto, Ramasamy, Subramanian, Marino, Matthew, Kistan, Trevor
Risk-Adaptive Engine for Secure ADS-B Broadcasts2015-01-252009/15/2015
Automatic Dependent Surveillance Broadcast (ADS-B) [1] is a technology that can be viewed either as a complement or as an alternative to current radar-based surveillance techniques. Despite its many benefits, this technology suffers from the security flaw of having its messages sent as clear text broadcasts, which makes it vulnerable to several kinds of attacks affecting the authenticity and integrity of ADS-b messages - a problem we addressed with a security framework presented in previous work [2]. In this paper, we propose to enhance that initial work by using keyed-hash message authentication code [3] (HMAC) to ensure the authenticity and integrity of ADS-B messages. The proposed improvements include changing the structure of the security-related data and, more importantly, adding a cognitive risk adaptive module. These improvements resulted in four main contributions. First, the new structure of the security-related data is more resilient to messages being lost or scrambled
Kacem, Thabet, Carvalho, Jeronymo, Wijesekera, Duminda, Costa, Paulo, Monteiro, Márcio, Barreto, Alexandre
Integrated Underwater Security SystemTBMG-2151802/01/2015
ATLAS ELEKTRONIK UK Winfrith Newburgh, Dorchester, UK +44-1305-212400
UAS Behaviour and Consistency Monitoring System for Countering Cyber Security Threats2014-01-213109/16/2014
Upon their arrival, Unmanned Autonomous Systems (UAS) brought with them many benefits for those involved in a military campaign. They can use such systems to reconnoiter dangerous areas, provide 24-hr aerial security surveillance for force protection purposes or even attack enemy targets all the while avoiding friendly human losses in the process. Unfortunately, these platforms also carry the inherent risk of being built on innately vulnerable cybernetic systems. From software which can be tampered with to either steal data, damage or even outright steal the aircraft, to the data networks used for communications which can be jammed or even eavesdropped on to gain access to sensible information. All this has the potential to turn the benefits of UAS into liabilities and although the last decade has seen great advances in the development of protection and countermeasures against the described threats and beyond the risk still endures. With this in mind the present work will describe a
Felix, Rodrigo, Economou, John, Knowles, Kevin
Unmanned Demonstrator Aircraft for Maritime SurveillanceTBMG-1963305/01/2014
Northrop Grumman Falls Church, VA 703-280-2900
The Evolution of Airline Safety and Security Programs2013-01-222909/17/2013
Career paths are not something that one can predict. They are as much about being in the right spot at the right time with the desired skill set as they are about having a detailed, calculated plan. How does one go from being a young Original Equipment Manufacturer (OEM) test engineer to being an airline Senior Vice President of Safety, Security and Compliance and the joint industry/FAA co-chair of the Commercial Aviation Safety Team? It is a bit unusual that a non-pilot ends up on an airline Operations Specification listed as the Federal Aviation Regulations (FAR) Part 119 Director of Safety for one of the largest airlines in the world. Engineering background and experience were key stepping stones on that journey along with a healthy dose of skepticism. An initial assignment to make an airline's safety program robust, credible and data driven, much like the very successful aircraft reliability programs, set the direction and path forward. Today's commercial airline safety and
Hylander, Kenneth J.
Thermal-to-Visible Face RecognitionTBMG-1488010/01/2012
For nighttime surveillance, acquisition of visible light imagery is impractical due to the lack of illumination. Thermal imaging, which acquires mid-wave infrared or long-wave infrared radiation naturally emitted by the human body, can be utilized in low-light conditions to perform surveillance tasks. Identification of individuals captured by thermal imaging would significantly enhance nighttime intelligence gathering capabilities. However, government watch lists and databases almost exclusively contain visible-light face imagery of individuals of interest. Matching thermal face imagery to the existing databases therefore requires the development of across-modality face recognition algorithms and methods. Due to the large modality gap caused by the wavelength difference between visible and thermal radiation, thermal-to-visible face recognition is a challenging problem.
ASIC Readout Circuit Architecture for Large Geiger Photodiode ArraysTBMG-1470909/01/2012
The objective of this work was to develop a new class of readout integrated circuit (ROIC) arrays to be operated with Geiger avalanche photodiode (GPD) arrays, by integrating multiple functions at the pixel level (smart-pixel or active pixel technology) in 250-nm CMOS (complementary metal oxide semiconductor) processes. In order to pack a maximum of functions within a minimum pixel size, the ROIC array is a full, custom application-specific integrated circuit (ASIC) design using a mixed-signal CMOS process with compact primitive layout cells.
Surveillance SystemsTBMG-1395006/01/2012
Logos Technologies has begun delivery of the first two electro- optical/infrared Kestrel wide-area persistent surveillance systems to the U.S. Army for deployment on aerostats at forward operating bases (FOBs) in Afghanistan. Replacing interim, day-only Kestrels rushed to the battlefield last October, the new persistent surveillance systems will now offer sensor operators on the ground round-the-clock coverage of a forward operating base’s environs. This means greater protection for the warfighter in and around “the wire.”
An Autonomous and Car-Following System via DSRC Communication2012-01-074104/16/2012
Inertia navigation system is capable to backup GPS unavailability. An autonomous system integrated different sensors to offer robots or remotely operated systems a reliable navigation means. This paper addresses an autonomous design method to accomplish continuously position positioning based on GPS positioning, gear-box speed, odometry, IMU and DSRC in deck reckoning. Besides, the availability of autonomous function is verified and applied using vehicles in car following or cooperative driving. This paper also presents an inter-vehicle geocasting format to accomplish multihop and car-following in cooperative driving and data exchanged based on GPS/IMU positioning and DSRC. The car following provides warning or situation awareness to drivers based on broadcast messaging the motions of neighboring vehicles obtained by one-way communication from other vehicles. The proposed system has the advantage of omnidirectional transmitting/receiving functions of DSRC module that provides 360
Hsu, Chan Wei, KO, Ming Kuan, shih, Min Huai, Huang, Shih Chieh
Aerospace Engineering 2012-02-1512AERD021502/15/2012
Bright outlook for glass cockpits Cockpits are adopting larger screens and touch input, using modularity to ease upgrades. Composites give copters a lift Design, fabrication, and analysis of a tail rotor blade made of composite laminated materials for a heavy transport helicopter. Taming overruns with simulation For aerospace projects, cost overruns and program delays start in the concept and proposal stage. How could using today's advanced CAE simulations earlier reduce that risk? Going modular with airborne radar Innovative approaches to solving the affordability challenge posed by too many specialist airborne surveillance systems. Efficient & effective leadership Frank O. Klegon, a 30-year SAE member and former product development VP at Chrysler, brings 'customer first' approach to term as SAE International's chief elective officer.
Optical Comb From a Whispering Gallery Mode Resonator for Spectroscopy and Astronomy Instruments CalibrationTBMG-1277702/01/2012
The most accurate astronomical data is available from space-based observations that are not impeded by the Earth’s atmosphere. Such measurements may require spectral samples taken as long as decades apart, with the 1 cm/s velocity precision integrated over a broad wavelength range. This raises the requirements specifically for instruments used in astrophysics research missions — their stringent wavelength resolution and accuracy must be maintained over years and possibly decades. Therefore, a stable and broadband optical calibration technique compatible with spaceflights becomes essential. The space-based spectroscopic instruments need to be calibrated in situ, which puts forth specific requirements to the calibration sources, mainly concerned with their mass, power consumption, and reliability.
A DNA-Inspired Encryption Methodology for Secure, Mobile Ad Hoc NetworksTBMG-1265501/01/2012
Users are pushing for greater physical mobility with their network and Internet access. Mobile ad hoc networks (MANET) can provide an efficient mobile network architecture, but security is a key concern. The figure summarizes differences in the state of network security for MANET and fixed networks. MANETs require the ability to distinguish trusted peers, and tolerate the ingress/egress of nodes on an unscheduled basis. Because the networks by their very nature are mobile and selforganizing, use of a Public Key Infrastructure (PKI), X.509 certificates, RSA, and nonce ex changes becomes problematic if the ideal of MANET is to be achieved. Molecular biology models such as DNA evolution can provide a basis for a proprietary security architecture that achieves high degrees of diffusion and confusion, and resistance to cryptanalysis. A proprietary encryption mechanism was developed that uses the principles of DNA replication and steganography (hidden word cryptography) for confidentiality
MARK 4 AIR TRAFFIC CONTROL TRANSPONDER (ATCRBS/MODE S)ARINC718A-4 (Current)11/15/2011
Mark 4 Air Traffic Control Transponder (ATCRBS/MODE S) describes an Air Traffic Control Radar Beacon System/Mode Select (ATCRBS/Mode S) airborne transponder with Extended Interface Functions (EIF). The ATC surveillance system is made up of airborne transponders and ground interrogator-receivers, processing equipment, and antenna systems. Mode S is a cooperative surveillance system for air traffic control with ancillary communications capabilities. ARINC 718A supports elementary surveillance. Provisional enhanced surveillance functionality is also defined as a customer option. The Mark 4 transponder, like its predecessor, will support TCAS functions.
Airlines Electronic Engineering Committee
Tracking Object Existence From an Autonomous Patrol VehicleTBMG-1137410/01/2011
An autonomous vehicle patrols a large region, during which an algorithm receives measurements of detected potential objects within its sensor range. The goal of the algorithm is to track all objects in the region over time. This problem differs from traditional multi-target tracking scenarios because the region of interest is much larger than the sensor range and relies on the movement of the sensor through this region for coverage. The goal is to know whether anything has changed between visits to the same location. In particular, two kinds of “alert” conditions must be detected: (1) a previously detected object has disappeared and (2) a new object has appeared in a location already checked.
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