Award Data

We propose to develop new acoustic metamaterials (AMMs) using locally resonant regimented structures, suitable for application in Hearing Protector Devices (HPDs), that will act as frequency selective acoustic filter for hearing protection. Our computational simulations conducted in phase I project have demonstrated that significant acoustic attenuation can be achieved in desired frequency ranges ...

In this Phase II SBIR effort we will dramatically reduce the size, weight, and power requirements of a passive millimeter wave imaging system based on optical upconversion. To this end, we will integrate custom silicon-germanium low noise amplifiers that have been designed to efficiently couple with our high performance lithium niobate upconversion modules. In Phase I we analyzed the design requ ...

Billions of dollars have been invested by the United State to acquire the most technologically advanced military hardware in history, and, thereby provide battlefield advantages to military personnel. Protection of our sophisticated weapons systems and their components is critical for the continued maintenance of our technological advantages. Detecting and counteracting the newest methods of rever ...

LIT accomplished all Phase I goals and technical objectives. During Phase I, LIT designed a zero power/ultra low power sensor using an ultra low power microprocessor and an electromagnetic sensing element. Embedded code was developed, providing primary anti-tamper function, as well as a real time clock, event logging, and event read-back. Active and passive mode sensors were developed and demon ...

The threat to the forces and assets of our armed forces, and our allies, posed by cruise missiles is growing at an alarming rate. As of 2002, there were already 80 countries, including The Peoples Republic of China, Iran, and North Korea, with cruise missiles in their arsenals. Eighteen of these countries produce cruise missiles domestically. As these threats continue to proliferate and as the cap ...

The Army"s Land Warrior concept requires a high efficient, portable, day-night continuously functioning battery charger/storage unit (BCSU) that will lessen the Soldier"s load. However, existing energy harvesting technology such as the photovoltaic cell is limited by operational conditions. To meet the needs, we will leverage our newly discovered breakthrough in energy harvesting and deliver a mic ...

Current gearbox life estimation techniques commonly underplay the significance of gear tooth surface fatigue due to the complexity of the phenomenon involved. The Phase I program successfully demonstrated the feasibility of utilizing advanced modeling techniques to predict the onset and propagation of surface and bending fatigue in spiral bevel gears, including an analysis of mixed-elastohydrodyna ...

The Phase II effort addresses the need for increased realism in the Hardware-in-the-Loop (HWIL) testing of Semi-Active Laser (SAL) seekers. This will be accomplished by building a SAL projector system based on a detailed projector design developed under the Phase I effort. The resulting projector system will simulate more realistic laser designator return signals (i.e., reflected laser light fro ...

A novel high performance Ultra-Wideband (UWB) Connected Array Antenna is proposed to meet the specific antenna requirements of a Forward Looking Ground Penetrating Radar (FLGPR) designed to find and classify mines and IEDs buried in roadways. The new array design exploits and integrates recent developments in Finite Difference Time Domain (FDTD) simulation and optimization applied to UWB Connected ...

The Army has identified the need to enhance existing ground-based surveillance platforms by utilizing polarimetric imaging (PI). Situational awareness imagery has become a vital tool for locating and helping to neutralize roadway threats. The urgency of these threats demands quick, cost effective solutions that can be easily integrated into existing systems without loss of current functionality. K ...