Award Data

ABSTRACT:Cognitive skills/capabilities are important for the military personnel to fulfill tasks and to ensure mission efficiency and success. In the past decade, there are abundant researches suggesting that non-invasive brain stimulation via transcranial direct current stimulation (tDCS) holds great promise to enhance a soldier's cognitive performances. Although models to predict the tDCS curren ...

A method of utilizing 3D printed molds to produce low cost metal parts for obsolescence, engineering development prototypes, and low rate production is proposed for development and evaluation.This method is capable of producing parts of similar quality to mass production techniques such as green sand and lost wax casting at a fraction of the setup costs for those methods.

In response to Defense Logistics Agencys SBIR for Advanced Manufacturing Technologies, Sentient proposes to develop a life-cycle cost optimization tool based on its DigitalClone-ComponentTM (DCC) modeling technology.This tool will enable users to better understand the tradeoffs between manufacturing cost and performance/durability of the resultant components. This is particularly attractive for lo ...

Due to their high specific strength and light weight properties, polymer matrix composites (PMCs) are increasingly used in a wide variety of military and civilian aircrafts. The mechanical strength of PMCs can be dramatically compromised when such materials are exposed to various heat sources during operation and maintenance. It has been shown that PMCs can lose up to 80% of their mechanical stren ...

ABSTRACT: Under the proposed effort, PSI will leverage a novel pmmW imaging technology developed under a prior Navy program to realize the low size, weight, and power sensors required for UAV implementation. This technology is based on an optical upconverted distributed aperture technology that can make use of the full aperture of the aircraft thereby maximizing achievable resolution. This sensor ...

Electronically steered antenna arrays capable of forming multiple beams enable tracking and concurrent sensing of multiple, spatially diverse targets, thus providing significant advantage over dish antennas that have fixed, narrow beam patterns. To address the needs of the DoD, such antenna arrays must demonstrate high gain, low noise figure, and ultra-wideband operation. We have identified the an ...

ABSTRACT:Modulator linearity and efficiency, in addition to bandwidth, are important parameters in characterizing a modulator. In general, improving modulation efficiency is highly desirable since higher modulation efficiency allows lower RF signal to impose equivalent change in the optical beam whereas improved linearity increases the dynamic range available to analog signals conveyed and process ...

Herein, PSI proposes to leverage extensive development in the area of optically sampled passive millimeter-wave imaging to develop dual mode active/passive imagers that provide both the intuitive, real-time imagery of a passive imager and the ranging capabilities of an active sensor. To accomplish this task, an optically sampled millimeter-wave receive array is sampled via optical pulsed laser gat ...

A new class of high-performance, low-SWaP computational devices is emerging based on increasingly diverse architectures. This diversity is improving performance, but comes at the cost of increased programming complexity. Each architecture requires variances in programming environment and model, typically distinguished by the type of parallelism supported by the hardware, limiting software portabil ...

We propose to monolithically integrate an infrared light emitting diode (IRLED) array on the backside of a GaAs substrate whose frontside contains an array of driver circuits. We will develop smaller GaAs substrate via technology to enable smaller pixel pitch and realize a large-scale GaAs-SLEDS read-in integrated circuit (RIIC). Our team consists of experts in IRLED fabrication, RIIC design, Ga ...