Award Data

Develop and test antennas suitable for an unmanned aerial vehicle (UAV) with signals intelligence and communications payloads and the potential to be used with other systems. New ideas are stressed to achieve antenna miniaturization and widebandwidths.The development of a miniaturized broadband antenna covering VHF/UHF frequencies for potential DF systems holds the potential for applications in w ...

This proposal describes the design and development of a high-speed, high-resolution wavefront sensing and control system. The system will couple high-resolution analog liquid crystal spatial light modulators with an innovative subtractive imaging sensor.The resulting system will acheive vast improvements in resolution, size, weight and cost over currently available systems. The system will be capa ...

In Phase I a revolutionary system for digital imaging microscopy was demonstrated. The system is based on the newly-developed imaging technology of Wavefront Coding (WFC). WFC employs specialized aspheric optics and digital processing to greatly increasethe depth of field or depth of focus. WFC simultaneously decreases the size, weight, and cost of a variety of digital imaging systems. Depth o ...

It is critical to extract maximum information from IR images for target detection, identification and classification purposes. Besides acquiring intensity variations, rapid collection of corresponding polarization signatures at desired wavelengths with animaging spectropolarimeter could enhance the information content of an IR scene. Present spectropolarimeters operate over a narrow spectral band. ...

CTI has demonstrated helicopter signature detection using both long and short pulse lidars. A long-pulse lidar is optimal for sensing increases in spectral width, however this signature is susceptible to wind turbulence and shear clutter. Short pulselidars are optimal for inflow-signature detection, however they require much longer update times. To satisfy these two competing effects, CTI prop ...

Laser rangefinders and target illuminators provide critical range and target identification information. However, they must be eyesafe, robust and meet stringent cost, mass, size, and performance requirements. Currently fielded laser rangefinders areundesirably bulky, heavy and costly, while incorporating misalignment-prone discrete laser components. Moreover, they do not easily scale to higher ...

The goal for the next generation transmitter in laser range finders is to reduce size, cost, weight, and complexity while increasing the robustness and operational lifetime. Current laser transmitters contain numerous free-space optical components whichrequire a skilled technician to assemble and maintain. Coherent Technologies, Inc. (CTI) proposes to develop a new miniature, monolithic Er-doped d ...

Passive systems such as forward looking infrared imagers, infrared search & track arrays, missile seekers and missile warning systems require calibration and testing at every level in their fabrication as well as at the depot and the flight line.Hardware-in-the-loop simulators exist for passive IR sensors and seekers, but no such technology exists yet for the validation of active coherent receiver ...

Design of next-generation vehicles for the Army must include an analysis of their detectability over a wide range of electromagnetic (EM) frequencies. Of particular interest is the frequency range of 50 to 200 GHz. At these small wavelengths, ground andair vehicles comprise millions of square wavelengths of surface area. The surrounding foliage, as well as earth surface terrains complicates the ...

The Army wishes to mount acoustic sensors on operational vehicles and use them to detect and localize other operational vehicles in the vicinity. The effectiveness of such a system can be limited by the noise created by the platform on which the sensorsare mounted. DSR proposes a system that combines noise cancellation techniques with adaptive beamforming techniques in order to simultaneously reje ...