Embodiments disclosed herein relate to a communication system. Particularly disclosed are systems and methods for locating and tracking radio frequency signals and for automatically positioning an antenna to receive a desired radio frequency signal.

A MIMO radar device for the decoupled determination of an elevation angle and azimuth angle of an object. The MIMO radar device includes an antenna array including multiple transmitting antennas, whose phase centers are situated spaced apart from one another along a first coordinate direction; and multiple receiving antennas, whose phase centers are situated spaced apart from one another along the first coordinate direction; the phase center of at least one of the transmitting antennas being spaced apart from the phase centers of the remaining transmitting antennas by an offset value along a second coordinate direction; the phase center of at least one of the receiving antennas being spaced apart from the phase centers of the remaining transmitting antennas by the offset value along the second coordinate direction; an evaluation unit to evaluate electromagnetic signals for the decoupled determination of the elevation angle and the azimuth angle of the object.

A method, digital tool, device, and system for detecting movements of objects and/or living beings in a radio range, which enables easily with a minimum of hardware complexity an automated movement detection based on a Single-Sensor, is provided. The method includes collecting as input data for the movement detection based on received radio signals of an intended or unintended communication between a transmitting radio terminal being mobile or fixed and a receiving local fixed radio device in the radio range “Received Signal Strength”-values related quantities, determining a change in the received radio signals, which are derived from the facts that the movement influences the transmitted radio signal in the radio range based on the RSS-values related quantities by the indication of a statistical parameter value, and assessing the statistical parameter value until the statistical parameter value in accordance with a threshold check provides a reliable statement for controlling purposes.

A method includes generating a first radar signal in a transmission channel of a first radar chip based on an oscillator signal and emitting the first radar signal via a first antenna, wherein the first radar signal is modulated based on a synchronization signal used in the first radar chip, generating a second radar signal in a transmission channel of a second radar chip based on the oscillator signal and emitting the second radar signal via a second antenna, wherein the second radar signal is modulated based on a synchronization signal used in the second radar chip, receiving an RF sensor signal by means of a sensor circuit, wherein the RF sensor signal has a superposition of a portion of the power of the first radar signal and a portion of the power of the second radar signal, and determining a measurement signal that depends on the RF sensor signal.

A radar sensing system for a vehicle includes a transmitter, a receiver, and an interference mitigation processor. The transmitter transmits radio signals. The receiver receives radio signals. The received radio signals include reflected radio signals that are each transmitted radio signals reflected from objects in the environment. The receiver also down-converts and digitizes the received radio signals to produce a baseband sampled stream. The interference mitigation processor produces a second received radio signal that includes reflected radio signals that are transmitted radio signals reflected from a first object. The interference mitigation processor uses the second received radio signal to remove selected samples from the baseband sampled stream that are attributed to radio signals reflected from the first object to produce a modified baseband sampled stream. The receiver uses the modified baseband sampled stream to detect a second object more distant than the first object.

A device for the imaging of an object to be studied, combines: a prism made from a material with no losses (non-absorbent) for radiation in the microwave range; a sample holder on a front face of the prism for receiving the object to be studied; and a mobile emitting antenna on a rear face of the prism in order to emit radiation in the microwave range.

A method in a wireless device (WD) for determining a best-fit geo-location of a target station is described. The best-fit geo-location is determined using a plurality of round-trip times (RTTs). The target station is movable. The method includes assigning values to current target station parameters. The current target station parameters include a current location for the target station and movement parameters. A plurality of square residuals is determined based at least in part on the current target station parameters. Each square residual of the plurality of square residuals corresponds to one RTT. A minimum of a sum of squared residuals (SSR) is determined based at least on the plurality of square residuals. best-fit parameters are determined based at least in part on the determined minimum of the SSR. In addition, the best-fit geo-location of the target station is determined based at least on the best-fit parameters.

A process for radiometric calibration of signals-of-opportunity (SoOps) may include adding a noise source to a plurality of input signals of a receiver, and calibrating the plurality of inputs signals with the added noise source.

A system for bistatic radar target detection employs an unmanned aerial vehicle (UAV) having a radar antenna for bistatic reception of reflected radar pulses. The UAV operates with a flight profile in contested airspace. A tactical fighter aircraft having a radar transmitter for transmitting radar pulses operates with a flight profile in uncontested airspace. A communications data link operably interconnects the UAV and the tactical fighter aircraft, the communications data link transmitting data produced by the bistatic reception of reflected radar pulses in the UAV radar antenna to the fighter aircraft.

A method, system and computer readable media for route re-planning including generating enemy force movement predictions to be used during mission planning. During a mission, enemy force movements can be compared to the predictions. By using enemy force movement predictions for an initial comparison, the enemy force movements may only need to be compared to the own force mission plan if the enemy forces deviate from the predictions. When enemy force movement deviates from the predictions, new enemy force movement predictions can be generated. The new enemy force movement predictions can then be compared to the own force mission plan to determine if a route re-plan is needed. The route can be re-planned to determine a route that reduces or eliminates the chance of a lethal encounter with an enemy or threat.