This effort is concerned with improving aircraft battle damage collection through systematic collection and documentation of battle damage sustained by aircraft. Accurate damage collection is an integral part of aircraft survivability, since much can be learned through its examination and… More

The Air Force is interested in substantially improving the productivity of their unmanned aerial vehicle (UAV) radar systems to provide all environment detection of targets as well as detection and tracking of air and ground threats. SAR/GMTI radar systems deployed on mini-UAVs are expected to be… More

The goal of signature prediction is to provide electromagnetics modeling to support detection and identification technologies for a wide range of target configurations and sensor characteristics. Signature prediction technologies have been extensively developed by AFRL, leading to a suite of… More

In this SBIR proposal, BerrieHill Research Corporation working with the ElectroScience Laboratory and the MicroMD Facility at The Ohio State University shall identify and develop novel magnetic RF polymers that have relatively high permittivity and permeability while exhibiting low loss at… More

Variability exists in all objects considered in ATR data sets. The two most important sources of this variability are (1) added or removed objects (example: object attached to the back of a tank) or (2) a part displaced relative to other parts, sometimes referred to as "articulation" (the classic… More

An important area of military capabilities is the small unmanned aerial vehicle (UAV). It is inexpensive and controllable by forward units. The Air Force presently has a significant opportunity to improve the productivity of UAV radar systems to provide all-environment detection of camouflaged and… More

High Power Microwave (HPM) systems penetrate electronic equipment front ends and cause substantial damage to critical components by generating extremely high energy via a very short electromagnetic pulse. Enclosing an HPM radiating aperture with a frequency selective surface (FSS) radome presents a… More

In general, there are two ways an FSS Radome subjected to an HPM source can fail. The first is under a sustained continuous high average power signal where heating in lossy materials causes melting or burning. The second is under a very high peak power signal where arching or breakdown occurs… More

ABSTRACT: The US Department of Defense, heavily dependent on the Global Positioning System (GPS) for geolocation, navigation, timekeeping and other military operations, faces unique challenges increasing capability, accuracy and availability of current GPS systems. New GNSS Systems are being… More

In-situ antenna measurements are often impractical or too costly, since they require the fabrication of the antenna and structural modifications of the platform for antenna installation. As the forward EM problems can be numerically solved ever more efficiently, it is possible to perform… More

ABSTRACT: The importance of precise satellite navigation is being realized throughout the world. In fact several systems are being deployed. Collectively these systems form the GNSS which offers improved accuracy and satellite availability. However due to differing requirements, new GNSS receivers… More