Bi-static radio-based object location detection can include determining, by a wireless device, a location of a remote wireless device; obtaining a ToF and an angle of arrival (AoA) of a reflected WWAN reference signal reflected by a remote object; and determining a location of the remote object based on the location of the remote wireless device, the ToF, and the AoA. In another example, a wireless device includes a wireless transceiver; a non-transitory computer-readable medium; and a processor communicatively coupled to the wireless transceiver and non-transitory computer-readable medium, the processor configured to determine a location of a remote wireless device; obtain a ToF and an angle of arrival (AoA) of a reflected WWAN reference signal reflected by a remote object; and determine a location of the remote object based on the location of the remote wireless device, the ToF, and the AoA.

In one embodiment, a method includes providing instructions to broadcast a modulated radar chirp signal from a radar antenna of a vehicle. The modulated radar chirp signal includes data associated with the vehicle. The method includes receiving a first return signal whose waveform substantially matches the modulated chirp signal. The first return signal is the modulated radar chirp signal after reflecting off of an object in an environment surrounding the vehicle. The method includes calculating a location for the object using the first return signal, receiving, from a base station antenna, a second return signal that indicates the modulated chirp signal was received by the base station antenna, and providing instructions to establish a wireless communication session with the base station antenna.

In one embodiment, a method includes providing instructions to broadcast a modulated radar chirp signal from a radar antenna of a vehicle. The modulated radar chirp signal includes data associated with the vehicle. The method includes receiving a first return signal whose waveform substantially matches the modulated chirp signal. The first return signal is the modulated radar chirp signal after reflecting off of an object in an environment surrounding the vehicle. The method includes calculating a location for the object using the first return signal, receiving, from a base station antenna, a second return signal that indicates the modulated chirp signal was received by the base station antenna, and providing instructions to establish a wireless communication session with the base station antenna.

An improved bistatic radar detection system useful for detecting an imminent collision between a vehicle and a tracked object includes at least one radar module having both receiver circuitry and transmitter circuitry to allow a processor to dynamically select operations of the module as either a transmitter or a receiver of a bistatic radar set.

An improved bistatic radar detection system useful for detecting an imminent collision between a vehicle and a tracked object includes at least one radar module having both receiver circuitry and transmitter circuitry to allow a processor to dynamically select operations of the module as either a transmitter or a receiver of a bistatic radar set.

An apparatus for providing location information includes a plurality of sensor units which are distributed throughout a confined area lacking a global positioning system (GPS) coverage and have respectively a plurality of FOVs that at least partially overlap with each other in an overlap area, each of the plurality of sensor units including a first sensor and a second sensor of a type that is different from a type of the first sensor; and a processor. The processor is configured to fuse sensing data provided by the first sensor and the second sensor that are respectively included in each of the plurality of sensor units, identify a location of an object existing in the overlap area based on the fused sensing data, and provide location information of the identified location to the object.

A proximity radar method for a rotary-wing aircraft includes a sequence of phases T(k) of steps. In a first phase T(1), the electronic computer of the radar system computes unambiguous synthetic patterns on the basis of a first activated interferometric pattern M(1) of N unitary radiating groups. In the following phases T(k) of steps, executed successively in increasing order of k, the electronic computer computes synthetic patterns on the basis of interferometric patterns M(k) of rank k, wherein the N unitary radiating groups of a series deviate simultaneously in terms of azimuth and in terms of elevation as k increases, and establishes maps of rank k of the surroundings in terms of azimuth distance/direction and/or elevation distance/direction cells wherein the detected obstacle ambiguities, associated with the network lobes, are removed by virtue of the map(s) provided in the preceding phase or phases.

A radio communication terminal (UE2) configured to act as a radar receiver, comprising: —a radio transceiver (323), —logic (320) configured to communicate data, via the radio transceiver, on a radio channel (101), wherein the logic is further configured to obtain (233), via the radio transceiver, a radar probing request (230) to detect radio signal echoes; determine (235) a receive direction (Dir2) based on the request; control the radio transceiver to detect (242) a receive property of the radio signal echoes in said direction; and transmit (261), via the radio transceiver, data (260) associated with the detected receive property to a radio communication device (BS1, UE1).

A frequency modulated continuous wave (FMCW)-based virtual reality (VR) environment interaction system and method are provided. Signal generators (S1, S2, S3) are provided to transmit FMCW signals; a glove is worn on a hand by a user; and multiple signal receiving nodes (H) are provided on the glove and configured to receive the FMCW signals. When the signal receiving nodes (H) receive the FMCW signals, one-dimensional distances are measured by means of FMCW technique; after the distances are measured, positions of the signal receiving nodes (H) in a coordinate system of the signal generators (S1, S2, S3) are calculated; a change in a position of the hand that wears the glove is tracked by means of changes in the positions of the signal receiving nodes (H); and a VR interaction is performed by outputting a change in a coordinate point matrix formed by the signal receiving nodes (H).

A frequency modulated continuous wave (FMCW)-based virtual reality (VR) environment interaction system and method are provided. Signal generators (S1, S2, S3) are provided to transmit FMCW signals; a glove is worn on a hand by a user; and multiple signal receiving nodes (H) are provided on the glove and configured to receive the FMCW signals. When the signal receiving nodes (H) receive the FMCW signals, one-dimensional distances are measured by means of FMCW technique; after the distances are measured, positions of the signal receiving nodes (H) in a coordinate system of the signal generators (S1, S2, S3) are calculated; a change in a position of the hand that wears the glove is tracked by means of changes in the positions of the signal receiving nodes (H); and a VR interaction is performed by outputting a change in a coordinate point matrix formed by the signal receiving nodes (H).