recently many studies have been done on different issues of using multiple antennas at transmit and receive sides of a radar system in a mimo (multiple input multiple output) configuration. in addition, for the electronic warfare‟s purposes, the utilization of available signals of the environment to detect the targets has gained considerable attention in recent years. such passive radars use th...

Invention and improving the methods of ENT examination are closely connected with technological inventions 19th 20th centuries. The invention classical exam head mirror in 1861 improvement manufacturing compact powerful sources light (filament lamps) at time caused researchers to create new devices for examination. In particular, a head-mounted electro-mirror was created, principle which later ...

reveals " blue " bias for colour constancy in real and simulated scenes. On calculating metamer sets for spectrally tunable LED illuminators. Are colour constancy mechanisms biased for typical illuminations? AIC 2013. Abstract The light reflected from object surfaces changes with the spectral content of the illumination. Despite these changes, the human visual system tends to keep the colours o...

Space debris is a growing problem and collisions are potentially lethal to satellites. Trajectories for small objects are predicted based on infrequent measurements, and the scale and therefore cost of maneuver required to avoid collisions is a function of trajectory accuracy. Frequent and precise observations will improve trajectory accuracy. In this paper, we extend on aspects of the feasibil...

Spaceborne GNSS-R (global navigation satellite system reflectometry) is an innovative and powerful bistatic radar remote sensing technique that uses specialized GNSS-R instruments on LEO (low Earth orbit) satellites to receive GNSS L-band signals reflected by the Earth’s surface. Unlike monostatic radar, the illuminated areas are elliptical regions centered on specular reflection points. Evalua...

Passive radar is a rapidly emerging technology with many distinct advantages over traditional radar. Its exploitation of “illuminators of opportunity” renders it covert, as well as less expensive. Several passive radar systems, such as Lockheed Martin’s Silent Sentry and John Sahr’s Manastash Ridge Radar at the University of Washington, are already capable of detecting and tracking aircraft. Ou...

Biometrics is mainly used in security systems and can reduce or eliminate the need to retain a key or to eliminate a password and can speed up user throughput being less intrusive. First, it detects the person‟s original identity with certainty while still honoring their civil and personal rights. Sclera recognition has many advantages compare to other methods. Face recognition is the natural w...

We present an automated light calibration pipeline for free-form acquisition of shape and reflectance of objects using common off-the-shelf illuminators, such as LED lights, that can be placed arbitrarily close to the objects. We acquire multiple digital photographs of the studied object shot from a stationary camera. In each photograph, a light is freely positioned around the object in order t...

Due to a number of recent technological advances, a hand-held flow cytometer can be achieved by use of semiconductor illuminators, optical sensors (all battery powered) and sensitive cell markers such as immuno-quantum dot (Qdot) labels. The specific application described is of a handheld blood analyzer that can quickly process a drop of whole, unfractionated human peripheral blood by real-time...