Abstract: A method for assessing a noise reduction algorithm and subsequent training of a neural network including the steps of: (1) providing a spectrogram containing noise and at least one signal of interest to the neural network; (2) analyzing the spectrogram to create a transfer function for a noise reduction algorithm; (3) applying the noise reduction algorithm to the spectrogram to produce a noise reduced spectrogram; (4) identifying a signal of interest within the noise reduced spectrogram; (5) calculating an assessment criterion for the noise reduced spectrogram or the signal of interest; and (6) iteratively creating an updated transfer function based on a value of the assessment criteria.

Abstract: A method for signal detection including the steps of: (1) iteratively acquiring sets of signal samples in a time domain N times; (2) iteratively applying a first transform to each iteratively captured samples in the time domain to convert each set of samples in the time domain to a corresponding subsequent set of samples in a frequency domain; (3) iteratively creating array rows using each of the sets of samples in the frequency domain wherein each subsequent array row has a length N; (4) appending each subsequent array row to the array until a second axis representing time reaches length N; (5) applying a second transform to the array to create a plurality of layers of spectral content; (6) determining a location of a signal of interest; and (7) applying a bounding box to the array to isolate the signal of interest.

Abstract: A method for creating a standardized XML format including the steps of (1) defining an event element, (2) creating a template file having the event element; (3) identifying a message on a shared bus; (4) determining a bus message type of the message; and (5) creating an output XML file based on the template file when the value of the bus message type is equal to the value of the event user identification attribute.

Abstract: A method for displaying synchronized messages comprising the steps of: (1) receiving a first message having a first timestamp in a first format; (2) converting the first timestamp from the first format to a universal format; (3) displaying information related to the first message; (4) selecting a time range; (5) comparing the first timestamp in the universal format to the selected time range; and (6) providing a first visual indication to inform a user when the first timestamp is in the selected time range.

Abstract: A system for filtering messages sent to a processing engine from a data stream including: (1) a detection block adapted to parse a plurality of messages received from the data stream; (2) a memory adapted to store the plurality of parsed messages; (3) a comparator adapted to compare a most recently parsed message to each of the plurality of parsed messages stored in the memory; and (4) a rules engine adapted to transmit the most recently parsed message to the processing engine if a threshold condition is met.

Abstract: A system for actuating a safety control for a device including: (1) at least one sensor adapted to measure a parameter of the device and provide an output; (2) a Kalman filter adapted to receive the output of the at least one sensor and provide a state estimate and covariance value of the device; (3) a Lyapunov function adapted to receive the state estimate and covariance value from the Kalman filter and provide a time derivative; and (4) a comparator adapted to compare the time derivative to a reference value and provide a command decision to the device.

Abstract: A communication system for an unmanned aerial vehicle operating beyond visual line of sight may include an airborne radio and a plurality of ground radios. The airborne radio is carried by the unmanned aerial vehicle. The plurality of ground radios are in wireless communication with the airborne radio. Each of the plurality of ground radios includes a processor adapted to calculate one or more performance metrics related to communication between the airborne radio and a respective one of the plurality of ground radios. One of the plurality of ground radios is selected as an active ground radio based on the one or more performance metrics. The airborne radio is configured to receive control data only from the active ground radio.

Abstract: A method for analyzing digital data including the steps of: (1) receiving raw digital data; (2) encoding the raw digital data into event data stored in a standard file format; (3) utilizing a data communication interface standard to parse the event data into parsed event data stored in the standard file format; and (4) providing a visual representation of the parsed event data.

Abstract: A method for assessing a noise reduction algorithm and subsequent training of a neural network including the steps of: (1) providing a spectrogram containing noise and at least one signal of interest to the neural network; (2) analyzing the spectrogram to create a transfer function for a noise reduction algorithm; (3) applying the noise reduction algorithm to the spectrogram to produce a noise reduced spectrogram; (4) identifying a signal of interest within the noise reduced spectrogram; (5) calculating an assessment criterion for the noise reduced spectrogram or the signal of interest; and (6) iteratively creating an updated transfer function based on a value of the assessment criteria.

Abstract: A method for signal detection including the steps of: (1) iteratively acquiring sets of signal samples in a time domain N times; (2) iteratively applying a first transform to each iteratively captured samples in the time domain to convert each set of samples in the time domain to a corresponding subsequent set of samples in a frequency domain; (3) iteratively creating array rows using each of the sets of samples in the frequency domain wherein each subsequent array row has a length N; (4) appending each subsequent array row to the array until a second axis representing time reaches length N; (5) applying a second transform to the array to create a plurality of layers of spectral content; (6) determining a location of a signal of interest within the array based on a threshold; and (7) applying a bounding box to the array to isolate the signal of interest.

Abstract: A system for signal detection including a receiver, a transforming block, a noise reduction block, and an object detection block. The receiver is adapted to provide an initial dataset sampled in a time domain over a frequency range. The transforming block is adapted to receive the initial dataset and convert the initial dataset from the time domain to a multi-channel time-frequency domain array. The noise reduction block is adapted to receive the multi-channel time-frequency domain array and provide a clean data set, wherein the clean data set is defined as a noise signal subtracted from the multi-channel time-frequency domain array. The object detection block is adapted to receive the clean dataset and to provide a bounded data set, wherein the bounded data set is defined by a bounding box associated with a portion of the multi-channel time-frequency domain array containing a signal with energy above a threshold level.

Abstract: A system for signal detection including a receiver, a transforming block, a noise reduction block, and an object detection block. The receiver is adapted to provide an initial dataset sampled in a time domain over a frequency range. The transforming block is adapted to receive the initial dataset and convert the initial dataset from the time domain to a multi-channel time-frequency domain array. The noise reduction block is adapted to receive the multi-channel time-frequency domain array and provide a clean data set, wherein the clean data set is defined as a noise signal subtracted from the multi-channel time-frequency domain array. The object detection block is adapted to receive the clean dataset and to provide a bounded data set, wherein the bounded data set is defined by a bounding box associated with a portion of the multi-channel time-frequency domain array containing a signal with energy above a threshold level.

Abstract: A multi-level secure switch includes a security enforcer logic chip, a switch chip, a management processor, and a plurality of physical ports. The security enforcer logic chip is configured to receive and transmit a plurality of data packets, each having an associated security level. The switch chip is configured to transmit the data packets to and receive the data packets from the security enforcer logic chip. The management processor is configured to provide security parameters to the security enforcer logic chip. Each of the plurality of physical ports have an associated security threshold and transmit and receive data packets to and from the security enforcer logic chip. The security enforcer logic chip is configured to transmit a data packets to a physical port only when the security level associated with data packet is compatible with the security threshold associated with the physical ports.

Abstract: A communication system for an unmanned aerial vehicle operating beyond visual line of sight may include an airborne radio and a plurality of ground radios. The airborne radio is carried by the unmanned aerial vehicle. The plurality of ground radios are in wireless communication with the airborne radio. Each of the plurality of ground radios includes a processor adapted to calculate one or more performance metrics related to communication between the airborne radio and a respective one of the plurality of ground radios. One of the plurality of ground radios is selected as an active ground radio based on the one or more performance metrics. The airborne radio is configured to receive control data only from the active ground radio.

Abstract: A multi-level secure switch includes a security enforcer logic chip, a switch chip, a management processor, and a plurality of physical ports. The security enforcer logic chip is configured to receive and transmit a plurality of data packets, each having an associated security level. The switch chip is configured to transmit the data packets to and receive the data packets from the security enforcer logic chip. The management processor is configured to provide security parameters to the security enforcer logic chip. Each of the plurality of physical ports have an associated security threshold and transmit and receive data packets to and from the security enforcer logic chip. The security enforcer logic chip is configured to transmit a data packets to a physical port only when the security level associated with data packet is compatible with the security threshold associated with the physical ports.