Phased array radar systems for unmanned aerial vehicles (UAVs) are disclosed. A disclosed example radar apparatus for a small UAVs includes a transmitter to transmit a transmit signal in the X-band, a receive phased array including at least two receive antennas, wherein the receive phased array provides a field-of-view of at least 100 degrees in a first direction and at least 20 degrees in a second direction perpendicular to the first direction, a first processor programmed to determine a location of an object based on an output from each of the at least two antennas, a second processor programmed to perform collision avoidance based on the location of the object, and a mount to mechanically couple the radar apparatus to the UAV.

An electronic device and a method for controlling the same are provided. The electronic device includes a communicator including circuitry, a first sensor configured to detect movement information of the electronic device, a memory including a first determination module configured to determine whether a user carries the electronic device and a second determination module configured to determine a detecting method for detecting a user location, and a processor configured to identify whether a user of the electronic device carries the electronic device based on the movement information of the electronic device obtained by the first sensor by using the first determination module, and determine a detecting method for detecting location information of the user according to whether the user carries the electronic device by using the second determination module.

In accordance with a first aspect of the present disclosure, a system is provided for facilitating guiding a vehicle to a predefined location, said system configured to be included in a vehicle and comprising: one or more ultra-wideband (UWB) communication units configured to establish UWB communication with a UWB-enabled system installed at said predefined location; a controller configured to control said UWB communication units; wherein the controller is configured to cause the UWB communication units to switch between a communication mode of operation, a ranging mode of operation and a radar mode of operation.

In accordance with a first aspect of the present disclosure, a system is provided for facilitating guiding a vehicle to a predefined location, said system configured to be included in a vehicle and comprising: one or more ultra-wideband (UWB) communication units configured to establish UWB communication with a UWB-enabled system installed at said predefined location; a controller configured to control said UWB communication units; wherein the controller is configured to cause the UWB communication units to switch between a communication mode of operation, a ranging mode of operation and a radar mode of operation.

This disclosure describes systems and methods for a ground-penetrating tailgate sensor system. An example method may also include transmitting, using a radar transceiver, a first radar signal towards a location above the tailgate. The example method may also include receiving, based on the tailgate being in a closed or open position and using the radar transceiver, a first return signal from an object located above the vehicle.

This disclosure describes systems and methods for a ground-penetrating tailgate sensor system. An example method may also include transmitting, using a radar transceiver, a first radar signal towards a location above the tailgate. The example method may also include receiving, based on the tailgate being in a closed or open position and using the radar transceiver, a first return signal from an object located above the vehicle.

Disclosed herein are an apparatus and method for monitoring a surrounding environment of a vehicle, the apparatus including a sensor unit including a plurality of detection sensors for detecting an object outside a vehicle according to a frame at a predefined period, and a controller configured to extract a stationary object from among the outside objects detected by the sensor unit, to map the extracted stationary object to a grid map, to calculate an occupancy probability parameter, indicative of a probability that the stationary object will be located on a grid of the grid map, from the result of mapping, and to monitor the surrounding environment of the vehicle by specifying a grid on which the stationary object is located in the grid map, based on the occupancy probability parameter.

Disclosed herein are an apparatus and method for monitoring a surrounding environment of a vehicle, the apparatus including a sensor unit including a plurality of detection sensors for detecting an object outside a vehicle according to a frame at a predefined period, and a controller configured to extract a stationary object from among the outside objects detected by the sensor unit, to map the extracted stationary object to a grid map, to calculate an occupancy probability parameter, indicative of a probability that the stationary object will be located on a grid of the grid map, from the result of mapping, and to monitor the surrounding environment of the vehicle by specifying a grid on which the stationary object is located in the grid map, based on the occupancy probability parameter.

In accordance with a first aspect of the present disclosure, a localization system is provided, comprising: a plurality of ultra-wideband (UWB) communication nodes; a plurality of antennas, each one of said antennas being included in one of said UWB communication nodes; an antenna selection unit configured to select a subset of said antennas for use in ranging operations that output a position estimate of an external device; wherein the antenna selection unit is configured to select said subset in dependence on at least one previous ranging operation. In accordance with a second aspect of the present disclosure, a corresponding method of operating a localization system is conceived. In accordance with a third aspect of the present disclosure, a computer program is provided, comprising computer-executable instructions that, when executed by a localization system, cause said localization system to carry out a method of the kind set forth.

A method for seamless access control according to one embodiment includes determining whether a user is authorized to access a passageway controlled by an access control device based on credential data received from a mobile device of the user, determining, by a RADAR system, a location of the user relative to the passageway, determining whether the user intends to access the passageway based on the determined location of the user relative to the passageway, and controlling, by the access control device, a lock mechanism to allow the user access to the passageway in response to determining that the user is authorized to access the passageway and the user intends to access the passageway.