Abstract: A system for beyond perimeter detection and early warning may comprise multiple sensors positioned in a first field, a number of reflectors positioned in a second field outside a first perimeter defined by the first field, and one or more transceivers. Each transceiver may comprise a transmitter to transmit radio frequency (RF) signals, a first and a second receiver to receive signals from some of a set of the of the multiple sensors and reflected signals from some/all of the reflectors in response to the transmitted RF signals. The transceiver may also include a monitor module to detect a perturbed signal resulting from the received sensor signals and reflected signals, and an alarm module to generate an early warning alarm signal based on the detection of the perturbed signal to indicate that an intruder has crossed a second perimeter defined by the second field.

Abstract: The present disclosure describes a method and system for detecting and determining the position of a target or intruder using a plurality of sensors positioned throughout a secured perimeter and a single antenna. The system of the present disclosure detects and determines the position of a target by first analyzing the return signal strength values of each of the sensors. Next, Zvalues for each of the sensors are calculated. Based on the Zvalues, certain sensors are selected to compute a signal strength center-of-mass location, which is then used to determine the position of the target.

Abstract: Systems and methods for detecting one or more changes in a monitored environment are provided. A method includes transmitting interrogation signals to sensors distributed in a monitored environment at a substantially constant power. A first set of the interrogation signals is transmitted to a first sensor. The method also includes receiving first response signals from the first sensor in response to the first set of interrogation signals transmitted to the first sensor. The method also includes determining an average parameter of the first response signals from the first sensor. The method also includes comparing the average parameter of the first response signals to an average parameter of baseline signals corresponding to the first sensor. The method also includes determining a statistical significance of the average parameter of the first response signals based on the comparison, and generating a change detection indicator based on the statistical significance.

Abstract: Systems and methods for detecting change in an environment are provided. In one aspect, a system for detecting change in an environment includes an RF noise source configured to transmit an RF noise signal into the environment and to vary a parameter of the RF noise signal, and an interrogator configured to communicate with a plurality of communication devices distributed in the environment over a plurality of communication channels. The system also includes a detection system configured to receive information related to performances of the plurality of communication channels from the interrogator, to generate a fingerprint of the environment for each of the plurality of communication channels based on the performance of the communication channel at different values of the parameter of the RF noise signal, and to detect a change in the environment when one or more of the fingerprints deviates from a respective baseline fingerprint by a certain amount.

Abstract: One embodiment of the present invention includes a system for determining authenticity of substances. The system comprises a plurality of RF sensors distributed in a predefined location pattern relative to a location for placing a substance under analysis. Each of the RF sensors is configured to transmit a response to an interrogation signal with a unique identifier. The system also comprises an RF transmitter that transmits sequences of interrogation signals over different frequency bands at one or more power levels and an RF receiver that receives responses to the sequences of interrogation signals transmitted from the RF sensors. The system further comprises a response pattern analyzer that determines response patterns for the RF sensors to the interrogation sequences and transmits a difference indicator if at least one of the determined response patterns varies from as predetermined signature of an authentic substance.

Abstract: One embodiment of the present invention includes a system for determining authenticity of substances. The system comprises a plurality of RF sensors distributed in a predefined location pattern relative to a location for placing a substance under analysis. Each of the RF sensors is configured to transmit a response to an interrogation signal with a unique identifier. The system also comprises an RF transmitter that transmits sequences of interrogation signals over different frequency bands at one or more power levels and an RF receiver that receives responses to the sequences of interrogation signals transmitted from the RF sensors. The system further comprises a response pattern analyzer that determines response patterns for the RF sensors to the interrogation sequences and transmits a difference indicator if at least one of the determined response patterns varies from a predetermined signature of an authentic substance.

Abstract: Systems and methods are provided for detecting changes in a monitored environment. One aspect of the invention relates to a system that comprises a plurality of radio frequency (RF) sensors distributed about the monitored environment, such that each RF sensor configured to respond to an interrogation signal with a unique identifier and a radio frequency (RF) interrogator that transmits interrogation sequences of interrogations signals over a plurality of different frequency bands at one or more power levels. The system also includes a response pattern analyzer that determines response patterns for each of the plurality of RF sensors to the interrogation sequences and transmits a change detection indicator if at least one of the determined response patterns vary outside a predetermined background baseline.

Abstract: Systems and methods are provided for detecting changes in a monitored environment. One aspect of the invention relates to a system that comprises a plurality of radio frequency (RF) sensors distributed about the monitored environment, such that each RF sensor configured to respond to an interrogation signal with a unique identifier and a radio frequency (RF) interrogator that transmits interrogation sequences of interrogations signals over a plurality of different frequency bands at one or more power levels. The system also includes a response pattern analyzer that determines response patterns for each of the plurality of RF sensors to the interrogation sequences and transmits a change detection indicator if at least one of the determined response patterns vary outside a predetermined background baseline.

Abstract: Resources are allocated in response to requests submitted for a set of entities. Each request has an associated value and resources required to satisfy the request. For each entity, local priority values are provided for prioritizing among the requests received for the entity. The priority values for every entity conforms to the same normalization rule. With respect to each entity, the system selects a set of best requests in accordance with the corresponding set of local priority values, the values associated with the requests, and the resources required to satisfy each request. A scarcity factor is determined for each resource. A score is determined for each selected best request in accordance with the value associated with each request, the resources required to satisfy the request, the scarcity factors for the resources, and a set of global priority values. The system selects a request having a best score.

Abstract: A multiple player game has objects corresponding to projects to which resources are allocated by the players of the game. The players include a plurality of groups. A resource bank mechanism determines a bank of resources to be made available to each group of players for allocation to the projects controlled by the players the group. A first game mechanism allows each player to make independent resource allocations to a project controlled by that player. A second game mechanism requires each group of players to make joint resource allocation decisions. A third game mechanism requires a plurality of the groups to make team level decisions affecting resource allocations to projects controlled by the groups of players. A scoring mechanism assigns a respective project score to each project of each group, a group score to each group of projects, and a team score to the plurality of projects.

Abstract: A multiple player game has objects corresponding to projects to which resources are allocated by the players of the game. The players include a plurality of groups. A resource bank mechanism determines a bank of resources to be made available to each group of players for allocation to the projects controlled by the players the group. A first game mechanism allows each player to make independent resource allocations to a project controlled by that player. A second game mechanism requires each group of players to make joint resource allocation decisions. A third game mechanism requires a plurality of the groups to make team level decisions affecting resource allocations to projects controlled by the groups of players. A scoring mechanism assigns a respective project score to each project of each group, a group score to each group of projects, and a team score to the plurality of projects.

Abstract: Resources are allocated in response to requests submitted for a set of entities. Each request has an associated value and resources required to satisfy the request. For each entity, local priority values are provided for prioritizing among the requests received for the entity. The priority values for every entity conforms to the same normalization rule. With respect to each entity, the system selects a set of best requests in accordance with the corresponding set of local priority values, the values associated with the requests, and the resources required to satisfy each request. A scarcity factor is determined for each resource. A score is determined for each selected best request in accordance with the value associated with each request, the resources required to satisfy the request, the scarcity factors for the resources, and a set of global priority values. The system selects a request having a best score.

Abstract: An apparatus for analyzing a specified path A-B with respect to a specified obstacle determines if the path intersects the obstacle and determines a collision avoidance path when the path is determined to intersect the obstacle. The apparatus is preferably a dedicated path analyzer that provides high speed path analysis support to a host computer performing navigation functions. The path analyzer includes a collision detector and a collision avoidance path generator. The path analyzer receives from the host computer coordinates representing the specified path's first and second endpoints (A and B) in three dimensional space and the specified obstacle's physical extent. The collision detector generates a preliminary result signal indicating whether the specified path does not intercept the specified obstacle, unavoidably intercepts the specified obstacle, or avoidably intercepts the specified obstacle.

Abstract: A route planning mechanism receives a target set denoting a set of available targets, a set of target parameter thresholds for binning target parameters, a set of mission objectives and a corresponding set of mission thresholds for binning the mission parameters. The route planning mechanism may also receive an avoidance set denoting obstacles to be avoided. The mission objectives define a number of distinct target parameter priority orderings, each associated with a respective mission status. Successive best next targets are selected and added to a selected target sequence list until a mission completion criteria is satisfied. Each best next target is selected by determining a mission status in accordance with the previously selected targets, and a corresponding target parameter priority ordering.

Abstract: A path analyzer for determining if a specified path is blocked by a given solid obstacle in three dimensional space. A programmable comparator converts path endpoints into first and second map signals, wherein each map signal indicates whether the corresponding path endpoint's position on predefined X, Y and Z coordinate axes is above, below or within a range of coordinate values associated with a specified obstacle. The specified obstacle is modelled as a rectangular parallelepiped, regardless of the actual shape of the obstacle. A first high speed decoder uses these map signals to make an initial determination as to whether the specified path is blocked, not blocked, or may be blocked by the specified obstacle. Whenever the first decoder determines that the path may be blocked, a second decoder determines the minimum number of additional computations needed to resolve whether the specified path is blocked.

Abstract: A path analyzer for determining if a specified path is blocked by a given obstacle. A programmable comparator simultaneously compares each of the coordinates of a specified point in N dimensional space with two coordinate ranges: (1) the range defined by the minimum and maximum values of the coordinate for a specified obstacle, and (2) the range of values of that coordinate which are outside and one one side of the obstacle. As a result, the programmable comparator generates a 2N bit map signal denoting, for each coordinate, whether the specified point is within each of the two ranges.The analyzer presents to the programmable comparator the coordinates of the starting point and the end point of a specified path, and the programmable comparator responds by generating a starting point map signal and an end point map signal. A decoder then uses these starting point and end point map signals to determine whether the specified path is blocked, not blocked, or may be blocked by the specified obstacle.