A positioning device and positioning method in which a first wireless signal is transmitted along a first signal path having a first signal path angle that changes relative to time; second wireless signal data representing a response of a wireless station to the first wireless signal is received; a third wireless signal is transmitted along a second signal path; and an assumption that an obstruction is between the wireless communication device and the wireless station is generated if the wireless communication device receives a response from the wireless station to the first wireless signal but does not receive a response from the wireless station to the third wireless signal; wherein the second signal path is a linear path.

The present disclosure is directed to scanning radar reflector systems, methods, and apparatuses; even more particularly to a system, method, and apparatus for scanning and reflecting a radar beam transmitted by a radar transmitter onboard an aerial vehicle with radar reflectors equipped on unmanned aerial vehicles. The radar reflection system may include one or more unmanned aerial vehicles equipped with a one or more axis gimbal upon which a radar reflector is mounted. A user may position the unmanned aerial vehicle and the radar reflector to target a specific region for radar scanning.

This document describes techniques and devices for non-line-of-sight radar-based gesture recognition. Through use of the techniques and devices described herein, users may control their devices through in-the-air gestures, even when those gestures are not within line-of-sight of their device's sensors. Thus, the techniques enable users to control their devices in many situations in which control is desired but conventional techniques do permit effective control, such as to turn the temperature down in a room when the user is obscured from a thermostat's gesture sensor, turn up the volume on a media player when the user is in a different room than the media player, or pause a television program when the user's gesture is obscured by a chair, couch, or other obstruction.

A control system is suitable for use in a motor vehicle and is configured and intended for detecting a position and/or a speed of an object in the surroundings of the host motor vehicle according to determined objects and/or according to driving-related information concerning other motor vehicles, based on surroundings data from at least one surroundings sensor situated on the host motor vehicle and provided to the control system. Based on these surroundings data, an object in the surroundings of the host motor vehicle is detected, and a virtual position and/or a virtual speed are/is associated with this object. The virtual position and/or speed associated with the object are/is adapted based on the driving-related information concerning another motor vehicle and/or based on driving-related information concerning the host motor vehicle, in order to determine an instantaneous position and/or an instantaneous speed of the object.

This document describes techniques and devices for non-line-of-sight radar-based gesture recognition. Through use of the techniques and devices described herein, users may control their devices through in-the-air gestures, even when those gestures are not within line-of-sight of their device's sensors. Thus, the techniques enable users to control their devices in many situations in which control is desired but conventional techniques do permit effective control, such as to turn the temperature down in a room when the user is obscured from a thermostat's gesture sensor, turn up the volume on a media player when the user is in a different room than the media player, or pause a television program when the user's gesture is obscured by a chair, couch, or other obstruction.

The present disclosure discloses a signal sending method, a target sensing method, a device and a storage medium. The method includes: switching, by a first device, a main lobe direction of a transmission beam from a first direction to a second direction, and sending a sensing signal; wherein, the second direction is a direction that the main lobe direction of the transmission beam of the first device is aligned with the second device, the first direction is different from the second direction; after sending the sensing signal, switching, by the first device, the main lobe direction of the transmission beam from the second direction to the first direction or a third direction, and the third direction is different from the second direction.

A positioning device and positioning method in which a first wireless signal is transmitted along a first signal path having a first signal path angle that changes relative to time; second wireless signal data representing a response of a wireless station to the first wireless signal is received; a third wireless signal is transmitted along a second signal path; and an assumption that an obstruction is between the wireless communication device and the wireless station is generated if the wireless communication device receives a response from the wireless station to the first wireless signal but does not receive a response from the wireless station to the third wireless signal; wherein the second signal path is a linear path.

An exemplary system, method and computer-accessible medium for generating an image(s) or a video(s) of an environment(s), which can include, for example, generating a first millimeter wave (mmWave) radiofrequency (RF) radiation using a mobile device(s), providing the first mmWave RF radiation to the at least one environment, receiving, at the mobile device(s), a second mmWave RF radiation from the environment(s) that can be based on the first mmWave RF radiation, and generating the image(s) or the video(s) based on the second mmWave RF radiation.

One embodiment of the present invention relates to a method for performing a vehicle image reconstruction by a sensing vehicle (SV) in a wireless communication system, the method comprising: receiving a plurality of stepped-frequency-continuous-wave (SFCW) from target vehicle (TV); receiving signature waveforms in a different frequency range for the plurality of SFCWs; performing synchronization by using phase-difference-of-arrival (PDoA) based on the signature waveforms; reconstructing one or more virtual images of the TV; and deriving a real image from the one of more Virtual Image.

Disclosed are techniques for wireless sensing. In an aspect, a method for reconfigurable intelligent surface (RIS)-assisted sensing performed by a base station (BS) includes configuring one or more reciprocal RIS beam pairs for sensing, wherein each of the one or more reciprocal RIS beam pairs comprises a downlink (DL) beam having a DL angle of departure (DL AoD) from a RIS controlled by a first set of control voltages and an uplink (UL) beam having an UL AoD from the RIS controlled by a second set of control voltages. The BS may send, to the RIS, information identifying the one or more reciprocal RIS beam pairs. The BS may perform monostatic sensing using at least one of the one or more reciprocal RIS beam pairs.