| DRS RSTA, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110228099 | SYSTEM AND METHOD FOR TRACKING COOPERATIVE, NON-INCANDESCENT SOURCES - A system and method for tracking a cooperative, non-incandescent source may include collecting scene images of a scene that includes the cooperative, non-incandescent source and background clutter. First and second scene images of the scene may be generated over distinct spectral bands. The first and second scene images may be imaged onto respective first and second focal plane arrays. In one embodiment, the imaging may be substantially simultaneous. The first and second scene image frame data respectively generated by the first and second focal plane arrays may be processed to produce resultant scene image frame data. The scene image frame data may result in reducing magnitude of scene image frame data representative of the background clutter more than magnitude of scene image frame data representative of the cooperative, non-incandescent source. | 09-22-2011 |
| 20110074332 | METHODS AND SYSTEMS FOR ELIMINATING STRUCTURAL MODES IN A SERVO MECHANISM EMPLOYED TO CONTROL A FLEXIBLE STRUCTURE - A servo system is provided for controlling movement of a flexible structure having multiple masses and elements. Each element couples a respective two of the masses and functions as a spring when the flexible structure is subject to a linear or rotational input at or above a frequency at which the respective element exhibits flexure. The servo system includes multiple sensors, where each sensor is disposed relative to a respective one of the masses to sense a respective acceleration. A motor having a torque input may operatively be configured to output one of a linear or rotational force on the first mass based on a torque signal present on the torque input. A servo controller that receives each sensed acceleration from each sensor may generate a compensation feedback signal based on a sum of sensed accelerations. The torque signal may be output to the motor based on the compensation feedback signal. | 03-31-2011 |
| 20110031401 | RADIATION DETECTOR HAVING A BANDGAP ENGINEERED ABSORBER - A radiation detector is provided that includes a photodiode having a radiation absorber with a graded multilayer structure. Each layer of the absorber is formed from a semiconductor material, such as HgCdTe. A first of the layers is formed to have a first predetermined wavelength cutoff. A second of the layers is disposed over the first layer and beneath the first surface of the absorber through which radiation is received. The second layer has a graded composition structure of the semiconductor material such that the wavelength cutoff of the second layer varies from a second predetermined wavelength cutoff to the first predetermined wavelength cutoff such that the second layer has a progressively smaller bandgap than the first bandgap of the first layer. The graded multilayer radiation absorber structure enables carriers to flow toward a conductor that is used for measuring the radiation being sensed by the radiation absorber. | 02-10-2011 |
