There is a constant need for less costly aircraft altitude sensors, for which large numbers of these sensors are required. the proposed program is to perform studies leading to the development of a surface acoustic wave (saw) altitude sensor for avionics air-data instrumentation. the objective of… More

There are two types of electronic countermeasure systems -active and passive (ecm). the passive ecm uses chaff, decoys, and radar cross-section reduction, and for the active noise jammers, and repeater jammer. in this proposal, an active ecm is proposed which uses a miniature digital rf memory… More

The proposed program is to perform studies leading to the development of a surface acoustic wave (saw) transducer for on board air-data system. the objective of the proposed program is to develop a high performance digital rate-of-descent/altimeter transducer which will utilize state-of-the-art saw… More

Threat simulators can make beneficial use of surface-acoustic-wave (saw) dispersive delay line (ddl) device to simulate enemy radar characteristics. however, a more important application for saw ddl device is in "scoring receiver". the receiver would serve to analyze and evaluate the ecm generated… More

A digital underwater sound detection system for smart mines using saw resonator based sensors is proposed. the advantages are large dynamic range, sensitivity minus 180 db re 1 v/mpa, 16 plus bit accuracy, small size and low cost, and a digital output without analogto-digital converters. these… More

An 8-bit ghz digitizer is proposed with a front-end analog demultiplexter using gaas sample-and-hold circuits for converting the input signal down to 125 mhz. a bank of silicon 80bit 125-mhz a/d converters are then used for signal digitization. digitized data are further demultiplexted before… More

An inertial guidance system for smart munitions using saw resonator based acceleration sensors is proposed. the advantages are large dynamic range, temperature compensation, 12 bit accuracy, and a digital output without analog-to-digital conversion, small size, and low cost. studies have shown… More

There is a need for miniature single axis magnetic sensor capable of detecting small magnetic field perturbations (nanoteslas). however, utilizing recently developed magneto-static surface wave (msww) resonators together with small rare-earth magnets, a small (

A compact, simple and totally passive velocimeter or integrating accelerometer utilizing well established mechanical principle is proposed. the advantages of the proposed approach are that: (1) the sensor is truly integrating and consumes no power, (2) the output can be analog or digital and the… More

A miniature and light-weight jammer system utilizing acoustic charge transport (act) device and other gaas circuits is proposed for a monolithic gaas mimic implementation. the jammer with a minimum bandwidth of 200 mhz will provide waveform-specific multiple jamming echoes with programmable delays… More

This proposal addresses the development of an innovative strapdown gyro, the hemispherical resonator gyro (hrg). the hrg offers improved rotation sensing with simplified system mechanization, higher reliability and improve life cycle cost for inertial navigation systems for ballistic missiles,… More

A miniature, low-power, gaas monolithic ghz waveform digitizer is proposed for analyzingspace-base laser altimeter pulse-spreading effect. it consists of a ghz gaassample-and-hold and a 6-bit monolithic gaas flash a/d converter using the enhancement/depletion (e/d) technology and latching… More

There is a need for a battle management 3-d display system to display battle situations in terms of terrain, air and ground forces for rapid situation assessment. an innovative real time stereoscopic large area 3-d display system is proposed. the proposed system has a display volume of 3'x3'x3' and… More

There is a need for an unattended gas chromatograph that canmake continuous measurements of carbon dioxide on surface buoys or ships of opportunity. an innovative real time, lowpower, and inexpensive surface acoustic wave (saw) resonator-based gas chromatograph is proposed that offers the unique… More

A chirp fourier transform compressive receiver employing newand innovative hyperbolic transducers and a single reflective array for pulse compression is proposed as an efficient low-power means of demodulation for frequency-shift-keyed (fsk) satellite communications. the successful development of… More

There is a need for a portable detector system that can detect illegal drugs, primarily marijuana, cocaine, and heroin, entering the united states aboard maritime vessels. a preliminary investigation has shown that saw technology can detect 10 femtograms (1 x 10-14) with a signal to noise ratio of… More

An innovative lpi/aj (low probability of intercept/anti-jam) modem is proposed for the secured communication link between u.s. military aircrafts. this modem utilizes spectral shaping and deception (sshade) technique which is capable of providing covert voice/data communications in a hostile jamming… More

An innovative low power digital communication (lpdc) system is proposed which will encode raw data from the self poweredvehicle detectors (spvd) sensors and send encoded data to the received base station via the lpdc devices. the proposed encoding algorithm will allow the lpdc to operate reliably in… More

Recently developed commercial laptop lcd terminals, using a powder, electro-luminescent backlight with a super-twist, lcd display surface, exhibit much-improved viewing contrast and battery life. the backlight system still consumes 90 percent of the power. in the case of color lcd displays, the… More

Backlights for portable color lcd matrix displays are extremely inefficient: 96% of the battery power is wasted on the backlight system. a high efficiency backlight system is proposed based on the use of micro-optical imaging of rgb phosphor triads onto the lcd rgb pixel rows so that the 67% loss in… More

This proposal addresses the need for advanced signal processing in airborne surveillance and targeting receivers. an innovative real time compressive receiver architecture using surface acoustic wave (saw) transformers is proposed as an adaptive airborne response monitor system. preliminary… More

There is a need for improved chemical agent collectors and preconcentrators to be used in hand held or remote Chemical-Biological (CBD) agent detection and identification systems. CBD sensing systems function as early warning and detection devices for aircraft and military personnel. A CBD… More