Disclosed are examples of systems, apparatus, methods and computer program products for locating unmanned aerial vehicles (UAVs). A region of airspace may be scanned with two scanning apparatuses. Each scanning apparatus may include one or more directional Radio Frequency (RF) antennae. The two scanning apparatuses may have different locations. Radio frequency signals emitted by a UAV can be received at each of the two scanning apparatuses. The received radio frequency signals can be processed to determine a first location of the UAV.

A method and apparatus for receiving signals from an unknown transmitting source and providing the location of the unknown transmitting source comprising a series of channels for receiving signals radiated by the unknown transmitting sources, generating preprocessed time domain data and generating a SAR image depicting a location of the unknown transmitting source, and a processor for processing the preprocessed time domain data to enhance a pixel value at each pixel location within the SAR image by summing signal data from each channel related to each pixel location to generate an enhanced SAR image.

Systems and methods are provided to simultaneously determine both angle of arrival (AoA) and angle of departure (AoD) of a signal transmitted between two or more radio frequency (RF)-enabled wireless devices (e.g., such as BLE modules). The disclosed systems and methods may be so implemented in one embodiment to determine AoD even in the case where the transmitting wireless device is at the same time operating in a departure (or AoD) transmitting mode by transmitting a RF signal from multiple antenna elements of at least one switched antenna array using a given switching pattern or sequence implemented by an array switch.

Disclosed are examples of systems, apparatus, methods and computer program products for locating unmanned aerial vehicles (UAVs). A region of airspace may be scanned with two scanning apparatuses. Each scanning apparatus may include one or more directional Radio Frequency (RF) antennae. The two scanning apparatuses may have different locations. Radio frequency signals emitted by a UAV can be received at each of the two scanning apparatuses. The received radio frequency signals can be processed to determine a first location of the UAV.

Disclosed are examples of systems, apparatus, methods and computer program products for locating unmanned aerial vehicles (UAVs). A region of airspace may be scanned with two scanning apparatuses. Each scanning apparatus may include one or more directional Radio Frequency (RF) antennae. The two scanning apparatuses may have different locations. Radio frequency signals emitted by a UAV can be received at each of the two scanning apparatuses. The received radio frequency signals can be processed to determine a first location of the UAV.

The invention relates to an apparatus for representing user information including an antenna apparatus, a processing apparatus and a representation apparatus. The antenna apparatus receives signals of a transmitter in a scene with at least one directional characteristic relating to spatially different receive sensitivities. Alternatively or additionally, the antenna apparatus sends signals with at least one directional characteristic into a scene and receives signals of a transmitter from the scene. The processing apparatus processes the received signals with respect to the scene and determines representation data represented by the representation apparatus. Further, the invention relates to a respective method.

A radio wave environment display device includes a display unit that displays a radio wave environment and a controller. The radio wave environment display device displays a radio wave environment in an area where a plurality of wireless transmitters located at different positions transmit radio waves. The controller selects, at each of a plurality of points in the area, a maximum intensity among intensities that are magnitudes of received power of radio waves transmitted from the wireless transmitters and causes the display unit to display the radio wave environment at each of the plurality of points based on the maximum intensity selected and an arrival direction of a radio wave with the maximum intensity selected.

A corner sensor for a motor vehicle capable of communicating over a wireless communication link with an authentication device and including: an array of antennae; and an electronic control unit configured to: determine the phase difference between the segments received by the antennae; determine the probability of each angle of incidence over a range of angles that is predetermined on the basis of the determined phase differences and of a predefined table, so as to determine a probability profile; measure the power of the segments received by the antennae of the array of antennae so as to determine a power profile; determine the actual angle of incidence of the signal by multiplying the probability profile with the power profile; and send the value of the determined actual angle of incidence to a central electronic control unit of the vehicle.

A floor device generates output data indicative of the presence of objects, such as feet of users, on the floor device. The output data from the floor device is processed to determine an object representation at a given time. The object representation may then be associated with a user identifier based on characteristics or features of the object representation. If a location of a user associated with the user identifier is determined to be near a fixture that stores one or more items, changes in quantity of items at the fixture may be associated with the user. For example, sensors on the fixture may generate fixture data indicative of a pick or place of items on the fixture. Based on the location of the user being near the fixture and the fixture data, interaction data may be generated indicating the user interacting with the items at the fixture.

An electronic device may be provided with wireless circuitry that includes first, second, and third antennas used to determine the position and orientation of the electronic device relative to external equipment. The antennas may include patch elements on respective substrates mounted to a flexible printed circuit. Each substrate may include fences of conductive vias that are coupled to ground and that laterally surround the corresponding patch element. Control circuitry may identify phase differences between the first and second antennas and between the second and third antennas and may identify an angle of arrival of received ultra-wideband signals using the phase differences. The control circuitry may compare the phase differences to a set of predetermined surfaces of phase differences to identify environmental loading conditions for the antenna. The control circuitry may correct the angle of arrival using offsets identified based on the environmental loading conditions.