A production data package was developed for a 267 gallon external fuel tank suitable for use on the F-14 aircraft.
Topics: DTIC Archive, Simkins, Albert E, NAVAL AIR DEVELOPMENT CENTER WARMINSTERPA AIR VEHICLE TECHNOLOGY...
Circular gears are optimized to provide constant torque and speed ratio with low noise. In conventional automotive applications, a transmission provides the required power, torque, and speed settings using a finite arrangement of gear sets, which limits the range of transmission gear ratios, resulting in a loss of efficiency. However, other transmission configurations operate over a continuous range of gear ratios, providing a continuous range of output speeds while maintaining constant input...
Topics: DTIC Archive, ARMY RESEARCH LAB CLEVELAND OH VEHICLE TECHNOLOGY DIRECTORATE, *TRANSMISSION GEARS,...
Multiple criteria decision analysis is widely used in a variety of fields, and offers a normative technique to justification of a decision. In most real decisions, uncertainty will be present, and the techniques for dealing with uncertainty are varied and depend on the properties of the decision to be made. This work summarizes a variety of relevant techniques and provides some commentary about their history, intended applications, strengths, and weaknesses. This work is intended to introduce...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
This report presents the design and development of a robotic tentacle manipulator research platform as a tool to explore new methods of enhancing the capabilities of remotely operated manipulators, autonomous manipulation, and autonomous search. We review the current state of dexterous manipulators and past milestones, choose manipulator morphology based on this review, and evaluate the morphology on the basis of design, control, and manufacturing constraints. A feasible architecture for a...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
Investigating tribological properties of gear materials, surface finishes, coatings, and lubricants in high-speed and high-load contact conditions is integral to the advancement of drivetrain technology. A focused simulation of gear contacts can be accomplished through a ball-on-disc tribometer with precise control over contact parameters such as the entrainment velocity, slide-to-roll ratio, and contact stress while recording the friction coefficient. These capabilities are integral to...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *GEARS,...
Presented is an overview of the work accomplished toward the development of a fully autonomous mesoscale hexapod robotic system. A circuit board and mobility system were developed in-house during the summer of 2008 to serve as the first generation of this platform. Much of the attention for this project has been focused on designing the system to be lightweight, small, and computationally capable of autonomous behavior using state-of-the-art embedded electronics components.
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *ROBOTS,...
Compressed sensing, also known as compressive sensing, is a technique for finding sparse solutions to underdetermined linear systems. In signal processing, compressed sensing is the process of acquiring and reconstructing a signal that is known to be sparse or compressible. The theory asserts that certain signals or images can be recovered from what was previously thought to be highly incomplete measurements. This report reviews this rapidly growing field and its application in structural...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
Project White Feather was a concept to apply advanced fire control technology to extend the effective range of the sniper. The original scope was for a full ballistic solution that compensated for residual weapon motion, accepted sensor input from a range and crosswind sensor, provided a dynamic corrected aim point to the shooter, and automated the firing time selection. The focus eventually narrowed to address crosswind determination, which is one of the most significant sources of error in...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
This report documents the research study conducted on advanced suspension and control algorithms for U.S. Army ground vehicles. It is extremely important to isolate the vehicle body and its contents from terrain-induced vibrations. This enhancement will provide our Warfighters a less-disruptive environment, enabling them to improve their operational effectiveness. Reduced vibration enabled through a well-designed suspension system with an efficient control algorithm will permit higher vehicle...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
The rapid development of autonomous systems (AS), which are technological systems or processes that either support or replace human decision making, will have a significant impact on emergency medical services (EMS). EMS provider organizations must be prepared to not only interact with AS by having response protocols in place that provide responders with guidance in dealing with these systems during an emergency, but they must also be able to leverage this technology to improve the quality of...
Topics: EMS, emergency medical services, autonomous vehicles, connected vehicle technology, Internet of...
Army operations have placed a high premium on reconnaissance missions for unmanned aerial vehicles (UAVs) and micro air vehicles (MAVs) (15 cm or less in dimension and less than 20 g in mass). One approach for accomplishing this mission is to develop a biologically inspired flapping wing insect-sized device that can maneuver into confined areas. Analysis of insect flight indicates that in addition to the bending excitation (flapping), simultaneous excitation of the twisting degree of freedom...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
JP-8 sprays from a hydraulically actuated electronically controlled unit injector (HEUI) and a common rail injector (CRIN) were investigated to compare the effects of the fuel delivery system on the spray behavior of the fuel. The fuel pressurization method between injectors is fundamentally different. The HEUI system utilizes engine oil to pressurize the fuel, whereas, the CRIN system pressurizes the fuel directly. To explore the different injection methods, rate of injection (ROI) experiments...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *FUEL...
Autopilots utilizing a single processor allow for smaller, lighter, more cost-effective designs than those using multi-processor architecture. Presented here is a software architecture that allows multiple tasks to operate in a real-time mutually exclusive environment using a single 8-bit processor. This type of architecture will be utilized to create an autopilot using a single processor and sensors. The problem is preventing individual tasks from interfering with one another in a real-time...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
The objective of this study is to optimize the injector power drive system for improved fuel injection quantity and timing control. The power drive system was optimized for improved injection repeatability under different operating conditions such as fuel supply pressures. A coupled simulation of injector electromagnetic, pintle (needle) rigid body motion and computational fluid dynamics (CFD) model was employed to generate the optimal values of the 1st stage current, the 1st stage on-time and...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *FUEL...
A numerical framework for simulating the mixing of supercritical and transcritical fluids with large density ratios is presented. The accurate and robust modeling of real-fluid effects on the fuel/air mixing process is critical in characterizing engine combustion. To describe this mixing process, the double-flux model is extended to systems with real-fluid state equations. For this, an effective specific heat ratio is introduced to eliminate the spurious pressure oscillations that are caused by...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *DIESEL...
Aircraft and rotorcraft structures are being redesigned with new lower weight materials; however, older metallic structures continue to be used. These older structures need monitoring and characterization of damage for continued operation. The use of ultrasonic guided waves is one nondestructive technique that can be used to interrogate such structures. Typically, large cracks or geometric variations can be found by examining signal amplitude; but smaller damage that can suddenly grow in size...
Topics: DTIC Archive, ARMY VEHICLE TECHNOLOGY DIRECTORATE HAMPTON VA, *ULTRASONICS, *DETECTION, *DAMAGE,...
The results of a four-phase fatigue program for bending tests of 7075-T6 aluminum alloy box beams for positive loads only and for positive and negative loads for both constant-and variable-load amplitudes are presented. The relative damaging effect of four airplane flight-maneuver-loads spectra was determined, and the effects on fatigue life for variations in spectrum block size, stress level, stress direction, and load sequence were established and the results are discussed. When compared to...
Topics: DTIC Archive, Breyan, William, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY...
The objective of this study is to examine the impact of single and multi-component surrogate fuel mixtures on the atomization and mixing characteristics of non-reacting isothermal diesel engine sprays. An Eulerian modeling approach was adopted to simulate both the internal nozzle flow dynamics and the emerging turbulent spray in the near nozzle region in a fully-coupled manner. The Volume of Fluids (VoF) methodology was utilized to treat the two-phase flow dynamics including a Homogenous...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *FUELS,...
Structural vibrations can be controlled by active or passive methods. Active control uses sensors and actuators, and requires controls. Passive control methods gradually reduce vibration by dissipating energy through dampers including rubber, hydraulic dashpots, or friction. Magnetostrictive materials (iron [Fe]-gallium [Ga] alloy, for example) can be used in passive structural vibration damper elements. Magnetostrictive materials are distinguished by the phenomenon of dimensional changes...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
This report documents the study of baseline sensor technology for enabling condition based maintenance plus in Army ground vehicles. The sensor study was driven from Failure Mode Effects Analysis (FMEA) conducted on four high cost driver components in Army ground vehicles by Tank Automotive Research, Development and Engineering Center (TARDEC). The four high cost driver components in Army ground vehicles as identified by TARDEC are engines, transmissions, batteries, and alternators. This report...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *GROUND...
There is a desire in the rotorcraft community to transition to an on condition maintenance program. This requires the ability to detect the presence of faults before failure. Gear-tooth root-cracks are of particular concern in the drive system, for they are generally difficult to detect until a crack has progressed to the point where catastrophic failure is eminent. Many diagnostics are developed using experimental data generated from specimens with machined, seeded faults rather than naturally...
Topics: DTIC Archive, ARMY RESEARCH LAB CLEVELAND OH VEHICLE TECHNOLOGY DIRECTORATE, *GEARS,...
This report describes recent work in the field of robotic perception research. The objectives of this research are to (1) program a computer to extract geometric planes characteristic of architectural walls in data from a three-dimensional time-of-flight camera, (2) track the planes through a stream of such data as the camera moved slowly through a plane-rich environment, and (3) serve plane descriptors to processes that desire such service. The programs were implemented at a high level using...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
This report covers a survey of cleaning and corrosion problems encountered with avionics systems, the application of a new cleaner for components, and a process for corrosion control of avionics components and systems at the three maintenance levels.
Topics: DTIC Archive, MacKenzie, W E, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY...
The focus of this Year II Director's Research Initiative resulted in design improvements and extended experimental capability for the next design iteration of millimeter-scale flapping wings. Three different design approaches intended to produce significant pitching motion through a flap stroke are outlined while providing a more detailed description of the design methodology for one technique employing two orthogonally mounted bending actuators. Two possible approaches to designing a balance...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *WINGS,...
The report covers the qualification tests of a radio frequency beacon intended for use in identifying and/or locating a recoverable aerial target. Failures experienced in testing to specifications are reported. Subsequent correction of deficiencies and retesting produced satisfactory results. The Beacon is considered qualified for service use.
Topics: DTIC Archive, Ozer, J, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT,...
The unpredictable, and therefore inherently dangerous, situations warfighters experience have created a demand for advanced environmental knowledge of impending threats. Small, stealthy, and versatile micro-technologies have great potential in this area and can provide autonomous reconnaissance and nonlethal protection while either crawling or flying. One particular challenge with flying systems is designing a lightweight vehicle while maintaining critical function performance. This project...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *WINGS,...
The US Army Research Laboratory's Robotics Collaborative Technology Alliance (RCTA) is a program intended to change robots from tools that Soldiers use into teammates with which Soldiers can work. This requires the integration of fundamental and applied research in perception, artificial intelligence, and human-robot interaction. In October 2014, the RCTA assessed progress toward integrating this research. This assessment was designed to evaluate the robot's performance when it used new...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *ROBOTS,...
Tests were conducted to explore the use of the Lawrence Corrosion Detection Gauge (CDG-2) as an auxiliary tool in new applications areas in the Analytical Rework Program. Calibration data are presented showing the reproducibility of measurements made by the instrument. Tentative procedures for the determination of corrosion resistant properties of coatings on low alloy steel and susceptibility to exfoliation of 7178 aluminum alloy T6 and T76 tempers are described and data are given.
Topics: DTIC Archive, Fischer, Philip, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY...
The MTI-2100 is a measurement system that provides for non contact precise measurement of the position, the displacement (micro-positioning), and the vibration of an object in planar motion. By using fiber optic technology, these measurements provide assistance to thoroughly understanding the structural dynamics of a planar actuating object. This report describes the operational principles of the MTI-2100 Fotonic(TM) Sensor measurement system. To illustrate how it works in practice the...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
The purpose of this research is to explore lipid layers as a potential biosensor for corrosion. It is hypothesized that applying a lipid layer to metals will allow for corrosion monitoring by measuring lipid degradation as a response to oxidation of the metal substrate. The novel method of corrosion monitoring on metal substrates using phospholipids as a surface coating is enunciated in this report. The phospholipid and metallic surface preparation and the results of progressive exposure to a...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
Surface topology and electron transport properties of self-assembled monolayer (SAM) of an engineered molecule 4,4'-[1,4-phenylenebis(methylidynenitrilo)]bisbenzenethiol (PMNBT) and 1-dodecanethiol (dDT) adsorbed on Au substrates have been investigated by scanning tunneling microscopy (STM) at ambient conditions. The electrical measurements of hexadecanethiol (hDT), which is similar in length to PMNBT, have also been compared. The pi-bond dominated PMNBT molecule was engineered using...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
A general purpose computer code is described which generates Calcomp Pen Plots suitable for reports and other documents. The code was developed using the NAVAIRDEVCEN OC 6600/CYBER 175 computer facilities.
Topics: DTIC Archive, Caddy, M. J., NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT,...
Micro brushed and brushless motors of the size typically used on micro-ground vehicles and micro-air vehicles have been found to have very low efficiencies. This lack of efficiency not only stems from low manufacturing tolerances, but is also because motors at these scales are generally operated over a large range of loading conditions causing them to operate off design point. This technical report: (1) provides a basis for a simple motor analysis, comparing analysis with actual motor test...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
In order to assess the technology developed by members of the U.S. Army Research Laboratory s Robotics Collaborative Technology Alliance (RCTA), RCTA s Integration and Assessment team conducts experiments to test the limits of developed technologies. We conducted such an assessment in October 2013 to evaluate the performance of a semantic labeling system developed by researchers at Carnegie Mellon University. The system consists of a Basler AC1300gc camera with Fujinon TF28DA8 lens and...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
A study was performed to evaluate fault detection effectiveness as applied to gear tooth pitting fatigue damage. Vibration and oil-debris monitoring (ODM) data were gathered from 24 sets of spur pinion and face gears run during a previous endurance evaluation study. Three common condition indicators (RMS, FM4, and NA4) were deduced from the time-averaged vibration data and used with the ODM to evaluate their performance for gear fault detection. The NA4 parameter showed to be a very good...
Topics: DTIC Archive, ARMY RESEARCH LAB CLEVELAND OH VEHICLE TECHNOLOGY DIRECTORATE, *PITTING, *GEARS,...
The contract supports studies to define the role of the PIM1 kinase in acquired resistance to chemotherapy by prostate cancer cells. Data to date for specific aim #1 define a signaling pathway induced by docetaxel involving sequential steps of STAT3 phosphorylation expression of PIM1 and activation of NFkB signaling. Blockade of this pathway prevents drug-induced upregulation of NFkB activity and sensitizes cells to docetaxel. Other studies (specific aim #2)focus on identifying a mechanism...
Topics: DTIC Archive, Meitner, P L, ARMY RESEARCH LAB CLEVELAND OH VEHICLE TECHNOLOGY DIRECTORATE,...
Aircraft rinse facilities are presently employed to remove corrosive salt deposits from aircraft operating in salt laden environments. While water rinsing has been effective in reducing corrosion, the rate of attack can be further reduced by introducing a small amount of corrosion inhibitor, such as potassium dichromate, into the rinse water. The report presents a preliminary design and cost study for such a recirculating chromate rinse system.
Topics: DTIC Archive, Clark, K G, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT,...
A key concern in the design of micro autonomous vehicles is an onboard energy supply that is able to satisfy system power requirements while also limiting the mass/volume burden to the platform. The conventional solution is to increase the energy density of the power supply, typically a commercial battery. Another approach is to replace single-function structural components with multifunctional structural energy storage materials to supplement the main power supply. Here we report on the use of...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *ENERGY...
This report describes the calibration of a commercial Roboteq motor controller which was installed in an iRobot ATRV Jr research robot as part of a system upgrade. The objective of the calibration was to determine the transfer function between a command issued to the robot control system and the path followed by the robot and all relevant parameters. Implicit in the calibration is validation of the model on which the transfer function is based, which is a kinematic model of a 4-wheel skid-steer...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
A rifle-mounted, boresighted camera and rugged video recorder can be used to determine where the rifle is pointed at the time the trigger is pulled. This information can be collected in exercises simulating close combat to help us better understand how to optimize small arms for this battle space. In this report, we examine issues in instrumenting the Soldier and suggest an approach to collecting this sort of data.
Topics: DTIC Archive, Haas, Gary A, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY...
Current structural health monitoring efforts are limited by the finite number of localized points that can be analyzed. Because of their small size, carbon nanotubes can combine with materials without significantly affecting the original material properties. Adding carbon nanotubes into a material allows researchers to create a distributed conductive network within the material. As damage occurs within these materials, the electrical properties of this network change with it. In this study,...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *CARBON...
A high-load endurance test was performed on the tail drivetrain of an H-60 Blackhawk helicopter to determine the resistance to gear tooth fracture under power levels exceeding the maximum continuous rating. During posttest inspection, it was found that a tooth had broken off of the tail takeoff spiral bevel gear. In addition, a moderate spall was found on the outer race of the intermediate gearbox input gear shaft support bearing. There were no obvious indications of the gear tooth failure...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *FAULTS,...
A high-resolution numerical simulation of jet breakup and spray formation from a complex diesel fuel injector at diesel engine type conditions has been performed. A full understanding of the primary atomization process in diesel fuel injection has not been achieved for several reasons including the difficulties accessing the optically dense region. Due to the recent advances in numerical methods and computing resources, high resolution simulations of atomizing flows are becoming available to...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE, *DIESEL...
The report contains the results of an investigation of joint shear strengths using solid rivet fasteners lubricated with lauric acid.
Topics: DTIC Archive, Perry, Franklin T, NAVAL AIR DEVELOPMENT CENTER WARMINSTERPA AIR VEHICLE TECHNOLOGY...
A 750 hour simulated mission endurance test (SMET) cycle which will closely represent the expected in-service engine duty cycle for the F18 power plant has been developed. The test cycle evolved from an extensive investigation of Navy and Marine fleet engine operating conditions experienced in fighter and attack aircraft during shorebased and carrier operations. The test cycles reflect power lever movements that are an order of magnitude greater than originally thought, and incorporate a...
Topics: DTIC Archive, Cote,S M, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT,...
Potassium chromate has been dissolved in significant concentrations in nonpolar organic solvents with the aid of macrocyclic polyether complexing agents. When a two phase system of chromate in water and polyether in organic solvent is agitated, the fraction of salt which is complexed into the organic phase is found to be inversely dependent on the pH of the aqueous phase. Application of this chemistry towards improving organic materials shows promise. TT-E-489F alkyd enamels containing small...
Topics: DTIC Archive, Ohr, Jack, NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT,...
The project is currently on schedule. The design review meeting was held on 08/26/97 at the Coastal Systems Station in Panama City, Florida. The mechanical arrangement, performance analysis and design features were presented at the review meeting. A number of suggestions and recommendations from the participants were noted for future guidance of the project. A meeting on 27 August was held at the 2CI facility to plan the continuing engineering and design efforts by 2CI and Vehicle Technology....
Topics: DTIC Archive, Rodler, Waldo E., VEHICLE TECHNOLOGY SAN JOSE CA, *TURBOJET ENGINES, *WATER JETS,...
The U.S. Army Research Laboratory is developing the Symbolic and Subsymbolic Robotic Intelligence Control System (SS-RICS) as a robotic control system based on human cognition. It has, as part of its intelligence, a production system similar to that of Adaptive Control of Thought Rational (ACT-R). One feature of the ACT-R system is that chunks of information about the surrounding environment have recorded activation values, which increase when the system turns its attention toward them and...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
This report provides a detailed procedure for interfacing an Atmel SAM7S256 board with a Linux-based PC. The environment and interface are related to a new autopilot project that is designed around the ARM7 architecture used within the U.S. Army Research Laboratory's Vehicle Technology Directorate. An example project is also discussed as a means to see how the environment operates.
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE,...
An ultrasonic modem is a device that can transmit information acoustically. One was designed for the 2008 FIRST Robotics League competition to provide short-range communications with the robot. The creation of this device was the result of a regulation that inhibited any use of electromagnetic-based communications technology in the competition. The ultrasonic modem consists of easily attainable and low-cost parts and was designed to attenuate ambient noise in the audible frequency domain and...
Topics: DTIC Archive, ARMY RESEARCH LAB CLEVELAND OH VEHICLE TECHNOLOGY DIRECTORATE, *MODEMS, *AUDIO...
