Award Data

ABSTRACT: The physical scalability of Si based nonvolatile memory is problematic for the terascale integration of space memory. In particular and with regards to Flash, this problem is two-fold as device designs breakdown and photolithographic patterning approaches its limits to minimum feature size. Whereas phase-change and ferroelectric polymer devices have shown promise to scale beyond Flash ...

Modern combustion systems such as liquid rocket engines and gas turbines are characterized by high operating pressures and temperatures due to increased power-density. Thermal radiation has significant impact on both heat fluxes at the wall and on physical phenomena controlling the combustion process at these conditions. Coupling between radiation, turbulence and chemistry can have a large effect ...

The objective of this proposal is to develop Selective Availability Anti-Spoofing Module (SAASM) compliant GPS receiver for Geosynchronous Earth Orbit (GEO) applications. In this proposal, we explore an approach to design the GEO GPS SAASM receiver based on improved techniques for signal acquisition (or detection) and then signal tracking (and demodulation) of weak GPS signals. GPS signals availa ...

Archangel Systems, Inc. proposes a feasibility study coined Triaxial Accelerometer with Low Offset and Noise (TALON) to meet the accelerometer needs for DoD"s next-generation IMUs in agile missile programs. DoD targets for IMU size, weight and power (SWAP) budgets are aggressive. To meet these requirements, TALON leverages prior Archangel work for DARPA"s NGIMG project. Specifically, the MEMS a ...

We propose to develop a space based radiation hardened GPS transmit antenna capable of forming spot beams to enhance the GPS signal on the ground by greater than 5 dB. It is expected that our transverse compound hybrid antenna will provide as much as 30 dB gain over a hemispherical antenna allowing enhanced signals over specific areas as large as 500 km. A tradeoff between spot size and signal g ...

ABSTRACT: Military and industrial personnel are often exposed to RF electromagnetic energy which can cause thermal and electrokinetic biological effects. To understand these effects, AFRL is using computational electromagnetic tools to predict RF energy deposition and thermal effects in humans. Unfortunately, high resolution thermal simulations are computationally very expensive. The goal of this ...

ABSTRACT: Modern military aircraft are encountering major thermal obstacles as a result of significant increases in on-board heat generation combined with a reduced ability to transfer heat to the ambient environment. Adaptive power and thermal management systems (APTMS) are being studied in great detail in order to mitigate these thermal restrictions, but complexity of such systems necessitates ...

ABSTRACT: This effort will evaluate radiation hardened cache memory architectures with respect to future device parameter requirements; identify potential Air Force PNT systems, DoD, and commercial aerospace application requirements; select a suitable RH cache architecture to meet anticipated memory size, performance, and radiation requirements; and initiate the design of an advanced RH cache whi ...

ABSTRACT: An important objective for the Air Force is to reduce the operational costs of GPS satellite systems via higher efficiency electronics, such as power amplifiers. In this project, CFDRC, in collaboration with Vanderbilt University/ISDE and a leading GaN device manufacturer, propose a complementary experimental and modeling-based approach to develop a Solid State Power Amplifier (SSPA) fo ...

ABSTRACT: The Air Force is considering the incorporation of a small, lightweight divert and attitude control system (DACS) into current and future air-to-air missile platforms. This will increase the agility of the missile and allow for interception of faster, or more maneuverable targets. CFDRC believes that a small DACS employing gelled MON25/MMH as the propellants and utilizing an innovative ...