Abstract: The present invention is directed to a method for use in a cognitive radio. A Fourier transform of a time domain signal is performed to obtain a series of frequency domain samples covering substantially the entire predetermined RF spectrum, the time domain signal corresponding to the RF waveform, each frequency domain sample being characterized by a predetermined waveform characteristic. The predetermined waveform characteristic of each frequency domain sample is evaluated in each subcarrier block to obtain a subcarrier block activity level for each subcarrier block. A subcarrier block is selected when its subcarrier block activity level is greater than a predetermined threshold.

Abstract: A kit and method for detection of a target in a sample. An assay mixture provided in the kit and used in the method includes a first probe with a first antibody recognizing a first epitope of the target and conjugated to an RNA oligonucleotide; a second probe with a second antibody recognizing a second epitope of the target and conjugated to a DNA oligonucleotide; a reverse primer with a first region complimentary to the RNA oligonucleotide and a second region complimentary to the DNA oligonucleotide; and a reverse transcriptase that creates a DNA transcription product from the RNA oligonucleotide using the reverse primer only if the RNA oligonucleotide and the DNA oligonucleotide are in close proximity. If the target is present in the sample, the reverse primer binds the RNA oligonucleotide and the DNA oligonucleotide to bring the RNA oligonucleotide and the DNA oligonucleotide in close proximity.

Abstract: A method and system for geolocation. The method and system determines the geographic history of a target of interest (i.e., the probability that a sample of interest passed though a defined location) given a combination of spatially attributable input data and weighing distributions.

Abstract: A method for correlating information across distinct domains without requiring feature co-occurrence. The disparate information collections are broken down into features, and a correlation index with correlation score is created. To determine the correlation between distinct domains, an information artifact collection is reduced to a representational set of features, these features are replaced with correlated features using the correlation index, and the new set of features is matched against the second information artifact collection using an appropriate comparison technique. The correlation method allows a single input artifact to be matched against an existing collection, resulting in a set of correlated artifacts from the disparate collection, each ranked by correlation score.

Abstract: Methods, systems, and devices for the detection and notification of chemical, biological, radiological, nuclear, and/or explosive agent. The detection and notification system uses aptamers bound to a catalyst that is activated when the aptamer binds to the agent. The activated catalyst acts on a substrate to create a signal that is detected, indicating the presence of the agent. For example, the system can be a glove worn by a user that includes a catalyst/substrate pair that, in the presence of the target agent, produces a colorimetric and/or fluorescent signal in a time-efficient manner.

Abstract: A method for obtaining sensor data about a remote target using one or more pre-existing sensors located in the vicinity of the remote target. The method includes the steps of identifying a remote target of interest, identifying one or more pre-existing target systems with one or more sensors located in the vicinity of the remote target, instructing the identified sensors to obtain sensor data and transmit the data over a communications network without detection, receiving the transmitted sensor data, and analyzing the received sensor data to create information about the remote target.

Abstract: The present invention relates to a method and system for classifying high-resolution melt (“HRM”) curves, and, more specifically, to a method and system for classifying HRM curves by genotype where the curves are represented by a mathematical function with varying coefficient values.

Abstract: The present invention is directed to a system that includes a semantic reasoning engine that is configured to convert radar track data into a directed graph representation (DGR) of the predetermined surveillance region and iteratively combine the DGRs to create a weighted directed graph (WDG) aligned and superimposed with the digital map data. The WDG includes first WDG elements corresponding to moving objects detected by a radar system. The WDG is compared to historical data to obtain a surveillance detection parameter. An alarm message is generated if the surveillance detection parameter deviates from the historical data by a predetermined amount. An output device is coupled to the semantic reasoning engine and is configured to provide a representation of the digital map data, the WDG and the at least one alarm message.

Abstract: Method and system for detecting and/or quantifying recent human presence in an environment using a calculated rate of decay of carbon dioxide concentration levels within that environment. A sensor measures the change in carbon dioxide levels over time to calculate the rate of decay to equilibrium and extrapolate recent human presence. Also provided is a method and system for quantifying recent human activity in an environment using the calculated rate of decay to equilibrium.

Abstract: The present invention relates to a Polymerase Chain Reaction and High Resolution Melt genetic identification system, and, more specifically, to a tactical and portable Polymerase Chain Reaction and High Resolution Melt genetic analysis and identification system that is configured to determine and communicate analysis and identification results and a tiered confidence/alert level related to the analysis and identification results.

Abstract: A multiple-input multiple-output (MIMO) synthetic aperture radar (SAR) system. The radar system includes spatially offset transmitting antennas simultaneously transmitting at least two distinguishable waveform signals and receiving antennas receiving incoming waveform returns for each of the distinguishable waveform signals. The radar system also includes a displaced phase center antenna (DPCA) processing unit adapted to perform processing on the incoming waveform returns, and a synthetic aperture radar processing unit adapted to produce a plurality of spatially-coincident SAR-processed signals. The radar system also generates a plurality of clutter-suppressed signals using the spatially-coincident SAR-processed signals. For each of two MIMO transmissions from spatially displaced transmitters, clutter is cancelled simultaneously in at least two spatially displaced receive channels via DPCA processing.

Abstract: A nucleic acid tag comprising a nucleotide-support platform attached to a nucleic acid molecule, an odorant, and an encapsulant. Unique nucleic acid-containing tags containing an odorant are seeded at one or more geographic locations. Using odorant-detection systems, the person or object of interest is examined for the presence of one or more of the odorant, thereby revealing the presence of the seeded nucleic acids and eliminating the expense and time associated with unnecessary screening. The geographic location associated with each detected nucleic acid is used to backtrack the item's path or extrapolate a probable point of origin.

Abstract: Methods and systems for injecting a wireless message in a cellular communication system. The attacking system receives a synchronization waveform from a base station and synchronizes in time and frequency. The attacking system transmits the correct time and frequency, and also transmits one or more attack messages. The mobile transceiver receives the one or more attack messages and responds. The attacking system then transmits a first wireless message configured to alter a characteristic of a physical layer of the mobile station.

Abstract: A nucleic acid tag comprising a nucleotide-support platform attached to a nucleic acid molecule, a fire retardant, and an encapsulant. Unique nucleic acid-containing tags containing a fire- or heat-protective element are seeded at one or more geographic locations. Using sequence analysis techniques, the person or object of interest is examined for the presence of one or more of the seeded nucleic acids. The geographic location associated with each detected nucleic acid is used to backtrack the item's path or extrapolate a probable point of origin.

Abstract: A method for characterizing risk using an adaptive risk analysis engine. Following a user request for a risk analysis, online and/or offline factual information is retrieved by the engine and is used to produce risk indicators. The risk indicators are mapped onto risk ontology to produce risk factors which are then used to assess the level of risk. Parameters for the likelihood, impact, and external threat of the risk are calculated, and a risk assessment report is produced for the user.

Abstract: A system for adaptively generating a sidelobe null in a radar transmit antenna pattern by positioning a small air vehicle along the radial of the sidelobe to be suppressed. The air vehicle is fitted with a receiver and antenna facing the radar, as well as a GPS device for maintaining the designated position. The vehicle further includes a communication link to the processor of the main radar transmitter to form a closed loop that enables adjustment of the attenuators and phase shifters of the auxiliary channel(s) to suppress signals transmitted in the sidelobe to be nulled. The com link may be replaced by a suitable transponder.

Abstract: A nucleic acid tag comprising: a nanoparticle nucleotide-support platform attached to a plurality of nucleic acid molecules, each of said nucleic acid molecules comprising identifying information, with a spacer located between the nanoparticle nucleotide-support platform and the identifying information, and where the nanoparticle nucleotide-support platform comprises diatomaceous earth; and an encapsulant surrounding the nanoparticle nucleotide-support platform.

Abstract: Methods for authenticating and/or detecting tampering of an item of interest using a nucleic acid tag. A nucleic acid tag comprising a nucleotide-support platform attached to a nucleic acid molecule is created or obtained and then sealed within or on the item of interest. The surface of the item of interest is sampled for the presence of the seeded tag after the item of interest has been moved from one location to another or has been stored for a period of time, during which tampering can occur and/or authentication may necessary. The presence of the tag can indicate that tampering has occurred, or that the item of interest is authentic.

Abstract: A method for detecting and identifying nucleic acid tags. A nucleic acid tag comprising a nucleotide-support platform attached to a nucleic acid molecule is created or selected and then immobilized on or in an item, or seeded within an area of interest. Samples are obtained from the surface of an item that has potentially been labeled, and an initial screen is conducted using universal primers to determine which samples contain nucleic acid tag. A multiplex screen is conducted on samples testing positive for nucleic acid tag in order to identify which of a plurality of nucleic acid tags are present on or in the item of interest.

Abstract: A high gain antenna for direction finding in the Ka-band. The antenna consists of a lens antenna fed by two micro strip patch antennas. The printed patch antennas are fed by a 180 degree hybrid coupler having four ports, with two ports connected to the feeds of the patch antennas and the other two ports connected to the receiver/exciter. The hybrid sums the signals from the patches and subtracts the signals from the patches to form sum and difference channels. By comparing the sum and difference channels, a user can determine whether the signal entered through the main beam. For example, if the sum signal is greater than the difference signal, the signal is in the main beam. If not, the signal came from another angle.