Abstract: A method and system for performing distributed outer loop power control in a wireless communication network are disclosed. The method includes the steps of determining a transmit power for a plurality of transmitting nodes such that signals sent from each of the transmitting nodes are received at a receiver associated with a receiving node at a predetermined signal-to-interference plus noise ratio (SINR) set point, increasing the SINR at the receiving node of one or more transmitting nodes of the plurality of transmitting nodes if a saturation value for a front end of the receiver associated with the receiving node is not near a predetermined saturation value, and decreasing the SINR at the receiving node of the one or more transmitting nodes of the plurality of transmitting nodes if the saturation value for the front end of the receiver associated with the receiving node is near the predetermined saturation value.

Abstract: Method and systems of traversing through a domain is provided. One method comprises getting a set of widely spaced waypoints, assigning the next waypoint to be the goal, then using a Laplacian path planner to construct a desired finely detailed path towards the goal, through the domain that avoids boundaries and objects in the domain. Assigning a potential value of v(r)=0 for r on boundaries and obstacles. Assigning a potential value of v(r)=?1 for r on a goal region, wherein the goal is a point on a planned path. Obtaining a numerical solution to the desired path with a Laplace's equation by gridding up the domain with a multi-sized cell grid, wherein the cells near an object are denser then the cells away from the objects. Iteratively setting a potential at each interior point equal to the average of its nearest neighbors and following the numerical solution provided by the Laplace's equation to the goal region.

Abstract: In one embodiment, a method for distributed power control in a network is provided. The method determines a transmit power for a plurality of transmitting nodes such that signals sent from each of the transmitting nodes are received at a receiving node at a signal to interference plus noise ratio (SINR) set point. Additionally, the method increases the SINR at the receiving node of one or more transmitting nodes of the plurality of transmitting nodes, and decreases the SINR at the receiving node of one or more other transmitting nodes of the plurality of transmitting nodes; wherein a total increase in SINR by the one or more transmitting nodes is substantially equal to total decrease in SINR by the one or more other transmitting nodes.

Abstract: A trending system and method for trending data in a physical or clock system. The trending system includes a sliding window filter. The sliding window filter receives a data set of data points generated by the clock system. The sliding window filter partitions the data set into a plurality of data windows, and uses the data windows to calculate upper and lower confidence bounds for the data set. Specifically, the sliding window filter calculates upper confidence bounds and lower confidence bounds for each data point using each of the multiple data windows that includes the data point. The sliding window filter then selects the upper confidence bounds and the lower confidence bounds that result in the smallest mean prediction confidence interval for that data point. This results in a smoothed estimated trend for the data set that can be used for prognostication and fault detection.

Abstract: Wireless data links between mobile vehicles are optimized by positioning the mobile vehicles in default locations, creating a wireless data link between the vehicles, and measuring the initial capacity of the wireless data link. An extremum-seeking algorithm is then performed, in which the mobile vehicles are moved locally around their default locations, and the resulting changes in capacity of the wireless data link are measured. The algorithm mathematically determines, based on the measured changes in capacity of the wireless data link, optimum locations at which, when the mobile vehicles are positioned there, the capacity of the wireless data link reaches a local maximum value. The mobile vehicles are then moved to the optimum locations.

Abstract: A computer-readable medium having computer-executable instructions for performing a method. The method includes determining the transformation of an origin of an imaging device positioned in a vehicle and implementing exponentially stabilizing control laws based on the determined transformation and a distance to an imaged target. The method also includes generating a rotation output from the exponentially stabilizing control laws, generating a zoom output from the exponentially stabilizing control laws, determining a system latency in redirecting an optical axis and modifying a lens system along the optical axis, and determining the transformation of the origin of the imaging device with respect to global coordinates. A centroid of the target image is maintained within a selected distance from the origin of the imaging device. The apparent distance between the imaged target and the imaging device is also maintained.

Abstract: A method to dynamically stabilize a target image formed on an image plane of an imaging device located in a moving vehicle. The method includes setting an origin in the image plane of the imaging device at an intersection of a first axis, a second axis and a third axis, imaging a target so that an image centroid of the target image is at the origin of the image plane, monitoring sensor data indicative of a motion of the vehicle, and generating pan and tilt output to stabilize the image centroid at the origin in the image plane to compensate for vehicle motion and target motion. The pan and tilt output are generated by implementing exponentially stabilizing control laws. The implementation of the exponentially stabilizing control laws is based at least in part on the sensor data.

Abstract: A system to identify targets comprising a camera module to track a target and to generate a relatively stable image of the target while the target moves with respect to the camera module, sensors to sense a movement of the camera module and to generate sensor data, a memory storing a database of possible targets and a programmable processor communicatively coupled to each of the memory, the camera module and the sensors. The programmable processor receives signals comprising information indicative of the image from the camera module and executes instructions in an instruction module. The instructions comprise exponentially stabilizing control laws based at least in part on the sensor data. The programmable processor executes instructions in the instruction module to determine a pattern match between the stable image of the target and one of the possible targets in the database.

Abstract: A method to dynamically stabilize a target image formed on an image plane of an imaging device located in a moving vehicle. The method includes setting an origin in the image plane of the imaging device at an intersection of a first axis, a second axis and a third axis, imaging a target so that an image centroid of the target image is at the origin of the image plane, monitoring sensor data indicative of a motion of the vehicle, and generating pan and tilt output to stabilize the image centroid at the origin in the image plane to compensate for vehicle motion and target motion. The pan and tilt output are generated by implementing exponentially stabilizing control laws. The implementation of the exponentially stabilizing control laws is based at least in part on the sensor data.

Abstract: A method and system for detection and remediation of sensor degradation in a monitoring device is disclosed. The method comprises defining or selecting a monitor signal, and setting at least one monitor signal range bounded by one or more upper thresholds and one or more lower thresholds for detecting degradation and/or shut-off. At least one measured sensor output signal is selected from the monitoring device that is within the monitor signal range. A predicted proxy sensor signal is generated concurrently with the measured sensor output signal in real-time. The predicted proxy sensor signal is blended with the measured sensor output signal when shut-down is impending or close to being recovered from. The predicted proxy sensor signal is used in place of the measured sensor output signal when the monitor signal crosses an upper or lower shut-off threshold during a shut-off period. The measured sensor output signal can be used once again when the shut-off period ends.

Abstract: A system for autonomous object tracking with static camera arrangements. Each camera arrangement may minimally have a pan-tilt-zoom camera and a range or depth sensor. Imaging may provide coordinates and depth information of a tracked object. Measurements of an image centroid position and width may be obtained with processing. Maintaining an image at the center of a camera screen may be attained at a pixel width of the image. Estimation and prediction of object size and position may be processed for providing pan, tilt and zoom rates for the camera. Pan, tilt and zoom latency may be accounted for in the system. There may be a number of camera arrangements where tracking of the object may be handed off by one camera arrangement to another.

Abstract: A system is disclosed for use in a wireless communication system to provide an estimated pilot signal. The system includes a receiver and a front-end processing and despreading component in electronic communication with the receiver for despreading a CDMA signal. A pilot estimation component is in electronic communication with the front-end processing and despreading component for estimating an original pilot signal using a pilot estimator that includes more than one filter and that includes a switching method for using the more than one filter. The switching method uses a prediction error. A demodulation component is in electronic communication with the pilot estimation component and the front-end processing and despreading component for providing demodulated data symbols.

Abstract: A system is disclosed for use in a wireless communication system to provide an estimated pilot signal. The system includes a receiver and a front-end processing and despreading component in electronic communication with the receiver for despreading a CDMA signal. A pilot estimation component is in electronic communication with the front-end processing and despreading component for estimating an original pilot signal using a pilot estimator that includes more than one filter and that includes a switching method for using the more than one filter. The switching method uses a prediction error. A demodulation component is in electronic communication with the pilot estimation component and the front-end processing and despreading component for providing demodulated data symbols.