Geospatial Accuracy of Small Unmanned Airborne System Data in the Coastal Environment

The purpose of this study was to assess the ability of commonly available COTS software to produce geometrically accurate orthometric mosaics and terrain models from low-altitude UAS imagery.

Posted in: Briefs, Aeronautics, Aerospace, Aviation, Data Acquisition, Design, Imaging, Automation, Data Acquisition, Sensors, Software

Localization and Mapping of Unknown Locations with Unmanned Ground Vehicles

The main goals of this research are to enhance a commercial off-the-shelf (COTS) software platform to support unmanned ground vehicles (UGVs) exploring the complex environment of tunnels, to test the platform within a simulation environment, and to validate the architecture through field- testing.

Posted in: Briefs, Aerospace, Defense, Batteries, Cameras, Lasers & Laser Systems, Photonics, Automation, Robotics, Data Acquisition, Sensors, Simulation Software, Software, Transportation

Simulation of Active Imaging Systems

Active imaging systems offer the promise of significantly improved tactical performance compared to passive military systems operating in adverse ground, air, and underwater/ maritime environments. These improvements would include, but are not limited to:

Posted in: Briefs, Aerospace, Data Acquisition, Defense, Imaging, Lasers & Laser Systems, Simulation Software

Characterization of Bore Temperatures and Stresses in Small Caliber Gun Barrels

Currently in the small arms community, with the push for lighter, stronger barrels with improved life, a more complete understanding of the bore's thermal and structural behavior is required in order to not only improve future barrel design but to more thoroughly and accurately assess barrels in the current inventory.

Posted in: Briefs, Aerospace, Data Acquisition, Defense, Data Acquisition, Detectors, Sensors, Simulation Software, Instrumentation, Measuring Instruments, Test & Measurement

Reusable Rapid Prototyped Blunt-Impact Simulator

Rapid prototyping (RP) is the term most commonly used to describe additive manufacturing technologies. An additive manufacturing technology is any manufacturing process that fabricates a part by adding one layer of material at a time, one on top of the other, to produce detailed 3-D geometries directly from 3-D computer-aided design (CAD) models.

Posted in: Briefs, Aerospace, Defense, Electronic Components, Electronics, Electronics & Computers, 3 D Printing & Additive Manufacturing, Manufacturing & Prototyping, Rapid Prototyping & Tooling, Simulation Software

Maintaining Enterprise Resiliency Via Kaleidoscopic Adaption and Transformation of Software Services (MEERKATS)

This research investigates a new vision for increasing the resilience of computing clouds by elevating continuous change, evolution, and misinformation as first-rate design principles of the cloud's infrastructure. The work is motivated by the fact that today's clouds are very static, uniform, and predictable, allowing attackers who identify a vulnerability in one of the services or infrastructure components to spread their effect to other, mission-critical services. The goal is to integrate into clouds a new level of unpredictability for both their services and data so as to both impede an adversary's ability to achieve an initial system compromise and, if a compromise occurs, to detect, disrupt, and/or otherwise impede their ability to exploit this success.

Posted in: Briefs, Aerospace, Data Acquisition, Defense, Computers, Electronic Components, Electronics & Computers, Software

Space Debris Orbit and Attitude Prediction for Enhanced and Efficient Space Situational Awareness

This research deals with the problem of modelling the orbit and attitude motion of uncontrolled manmade objects in orbit about the Earth, which tumble due to the natural influences of the near-Earth space environment. A mathematical, physics-based and computational approach is taken to model the forces and torques that drive the orbit and attitude evolution of such objects. The main influence modelled is solar radiation pressure (SRP), which is the interaction of solar electromagnetic radiation with the surface of an object, leading to both forces and torques that influence the orbital and attitude motion. Other influences, such as the gravitational field of the Earth, are also modelled.

Posted in: Briefs, Aerospace, Imaging, Materials, Simulation Software, Transportation

In-Network Processing on Low-Cost IoT Nodes for Maritime Surveillance

The effective distribution of offensive weapon capabilities to naval units at the tactical edge is a critical focus for Navy leaders. A direct byproduct of this priority is the need to employ sensor and data collection systems that can effectively guide the targeting of that offensive capability. In the recent past, wireless sensor networks have received limited use in the maritime domain due to the exploratory nature of technology, high system complexity and the high cost of system deployment. With the Internet-of-Things revolution, commercially available hardware and software components can be used to build low-cost, reliable, disposable wireless sensor networks that can leverage in-network processing schemes to greatly expand the intelligence collection footprint.

Posted in: Briefs, Aerospace, Communications, Wireless, Data Acquisition, Defense, Electronic Components, Electronics, Electronics & Computers, Internet of Things, Mechanical Components, MEMs, Sensors, Computer-Aided Design (CAD), Computer-Aided Engineering (CAE), Computer-Aided Manufacturing (CAM), Software

GPS Enabled Semi-Autonomous Robot

The primary objective of this research is to integrate GPS and local sensory data to allow a robot to operate semi-autonomously outside of a laboratory environment. The Pioneer 3-AT, a robust platform capable of operating in the outdoors, is utilized in this project. The P3-AT has acoustic sensors that can calculate distances to obstacles and encoders that calculate how much each wheel has turned. In a laboratory environment, sensory and encoder information can be used to triangulate position or measure distance and direction traveled from a known starting point. Operating outdoors limits the effectiveness of both systems as the obstacles are not known and wheels can often slip and slide on different surfaces. This necessitates external data to determine the location of the robot. GPS was chosen to provide that data. GPS, acoustic, and encoder data were integrated within MATLAB and provided control signals to the robot.

Posted in: Briefs, Aerospace, Communications, Data Acquisition, Defense, MEMs, Motion Control, Automation, Robotics, Data Acquisition, Sensors, Computer-Aided Design (CAD), Computer-Aided Engineering (CAE), Computer-Aided Manufacturing (CAM), Software, Transportation

Development of a Vision-Based Situational Awareness Capability for Unmanned Surface Vessels

Using unmanned surface vessels (USVs) for “dull, dirty and dangerous missions” is gaining traction in recent years as it removes the human element from a potentially life-threatening environment in missions such as mine hunting or maritime interdiction. Current USVs rely on human operators sitting in remote control stations to monitor the vessels’ surroundings and perform collision detection and avoidance. This reliance on the human operator constrains the operating envelope of the USV as it requires a high bandwidth and low latency communication link for safe operations, especially in waters with heavy traffic.

Posted in: Briefs, Aerospace, Defense, Imaging, Machine Vision, Video, Automation, Robotics, Simulation Software, Transportation