A sensing screen, a control circuit and control method thereof, and a sensing screen apparatus are provided. The sensing screen includes a display screen, a first transparent medium layer, a transparent connection layer, and an antenna layer. The antenna layer includes multiple antenna units, and the antenna units include at least one first antenna unit and multiple second antenna units. The first antenna unit is configured to transmit a sensing signal, the second antenna units are configured to receive reflected signals of the sensing signal, and the reflected signals are generated by a touch object by reflecting the sensing signal. According to the present application, the antenna layer is arranged right above the display screen, so that a touch area of the sensing screen is fully utilized while screen display is not affected, so as to substantially increase an antenna size and increase an antenna gain.

A method for using a radar assembly to sense an environment includes a radar system that has an antenna assembly secured for 360-degree rotation, the antenna assembly having mounted thereon at least one transmit antenna, and a first set of three or more separate fixed receive antennas, with the antenna assembly having a greater width than height so as to create a fanbeam. In the method of the present invention, the antenna assembly is rotated to a first azimuth position, and then an FMCW waveform is transmitted within the fanbeam, and reflections are received from targets in the environment while in the first azimuth position. Based on the received reflections, data is processed and stored. These steps are repeated for all other azimuths until an azimuth sweep has been completed. At that time, a full environmental data set is compiled for the environment, where the data set comprises azimuth data, range data, elevation data and RCS data. The data set is gathered and delivered to a controller for analysis.

A radar system utilizing a linear chirp that can achieve a larger MIMO virtual array than traditional systems is provided. Transmit channels transmit distinct chirp signals in an overlapped fashion such that the pulse repetition interval is kept short and the frame is kept short. This alleviates range migration and aids in achieving a high frame update rate. The chirp signals from differing transmitters can be separated on receive in the range spectrum domain, such that a MIMO virtual array construction is possible. Distinct chirps are delayed versions of the first chirp signal. Chirps overlap in the fast-time domain, but due to delay, there is separation in the range spectrum domain. When the delay is at least the instrument round-trip delay, transmitters are separable. Further, the wavelengths are identical across transmitters such that there is no residual-range versus angle ambiguity issue present in the claimed frequency-offset modulation range division MIMO system.

A covered enclosure surface sensing device, with an on-chip 2-D phased array radar sensor, beam-steering to create a three-dimensional image of the enclosure's interior. An environmental encasing contains a processor, a motion detector, a communication module coupled to an external communication antenna, a power source. It is attachable to a lid or upper side surface of the enclosure. After scanning, the device measures positions of, if present, flexible surfaces and obstructions within the enclosure and a level of liquid or powder in the bottom of the enclosure. If the enclosure contains an open channeled inlet and outlet, it measures liquid levels in the inlet and outlet, the position of the inlet and outlet, and the speed of fluid in the inlet and outlet. If the motion detector detects a threshold movement of the lid or surface sensing device, the phased array radar sensor performs a reorientation scan.

An FMCW radar sensor having a plurality of antenna elements at a distance from one another in a row, to each of which is assigned a mixer, which produces an intermediate frequency signal, and an evaluation unit that is designed to record the intermediate frequency signal over a measurement period as a function of time and to convert the time signal into a spectrum, and having an angular measuring device in which the spectra obtained from the evaluation devices are evaluated in separate channels. The sensor further including a beamforming device to carry out a beamforming for the signal received from a specified preferred direction by compensating run length differences of the signal to the antenna elements, a summation device forming a sum spectrum through coherent addition of the spectra, and a distance measuring device determining distances of objects in the preferred direction on the basis of the sum spectrum.

A system for radar interference mitigation, preferably including one or more transmitter arrays, receiver arrays, and/or signal processors, and optionally including one or more velocity sensing modules. A method for radar interference mitigation, preferably including transmitting a set of probe signals, receiving a set of reflected probe signals, and/or evaluating interference, and optionally including decoding the set of received probe signals and/or compensating for interference.

Examples disclosed herein relate to a sensor fusion system for use in an autonomous vehicle. The sensor fusion system has a radar detection unit with a metastructure antenna to direct a beamform in a field-of-view (“FoV”) of the vehicle, an analysis module to receive information about a detected object and determine control actions for the radar detection unit and the metastructure antenna based on the received information and on environmental information, and an autonomous control unit to control actions of the vehicle based on the received information and the environmental information.

The invention relates to a MIMO imaging radar system. The system comprises transmission channels (Ve1, VeM), reception channels (Vr1, VrN), and co-located radiating elements (ER.sub.e1, ER.sub.eM, ER.sub.r1, ER.sub.rN) forming a two-dimensional antenna array. Each radiating element (ER.sub.e1, ER.sub.eM, ER.sub.r1, ER.sub.rN) has a predefined instantaneous field of coverage. Each radiating element is formed by a plurality of p radiating sub-elements (SeElt1, SsEltp) distributed in at least one of the two dimensions of the antenna array. The radar comprises a plurality of electronic steering modules (MD.sub.e1, . . . , MD.sub.rN). Each electronic steering module is connected to one radiating element. Each steering module is configured to apply a steering command (Cmd) between all the radiating sub-elements (SeElt1, SsEltp) of a given radiating element. The steering command (Cmd) is identical from one radiating element to the next, so as to move the field of coverage of each radiating element in the same direction.

An electronic device is provided that includes a foldable housing. The foldable housing includes a hinge module, a first housing, and a second housing. The first housing is connected to the hinge module and includes a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and a first antenna supporting a first frequency band. The second housing is connected to the hinge module and includes a third surface facing a third direction, a fourth surface facing a fourth direction opposite to the third direction, and a second antenna supporting the first frequency band, and is folded with the first housing with respect to the hinge module. In the electronic device, in a folded state in which the first surface faces the third surface, the first antenna and the second antenna may be arranged to be spaced apart from each other by half a wavelength corresponding to the first frequency band, and in an unfolded state in which the first direction and the third direction are the same direction, the first antenna and the second antenna may be arranged to be spaced apart from each other by an error range or more, wherein the error range corresponds to the first frequency band.

This document describes techniques and systems of a radar system with modified orthogonal linear antenna subarrays and an angle-finding module. The described radar system includes a first one-dimensional (1D) (e.g., linear) subarray; a second 1D subarray positioned orthogonal to the first 1D subarray; and a two-dimensional (2D) subarray. Using electromagnetic energy received by the first 1D subarray and the second 2D subarray, azimuth angles and elevation angles associated with one or more objects can be determined. The radar system associates, using electromagnetic energy received by the 2D subarray, pairs of an azimuth angle and an elevation angle to the respective objects. In this way, the described systems and techniques can reduce the number of antenna elements while maintaining the angular resolution of a rectangular 2D array with similar aperture sizing.