The described aspects and implementations enable fast and accurate verification of radar detection of objects in autonomous vehicle (AV) applications using combined processing of radar data and camera images. In one implementation, disclosed is a method and a system to perform the method that includes obtaining a radar data characterizing intensity of radar reflections from an environment of the AV, identifying, based on the radar data, a candidate object, obtaining a camera image depicting a region where the candidate object is located, and processing the radar data and the camera image using one or more machine-learning models to obtain a classification measure representing a likelihood that the candidate object is a real object.

An electronic device and methods for performing beam management (BM) in systems with antenna arrays capable of operating in combined radar and communication modes are disclosed herein. The electronic device comprises a processor and a plurality of antenna elements configured to operate in a first mode, in which the antenna elements are used for communications with beamforming, and a second mode, in which at least two of the antenna elements are used for radar and the remainder are used for the communications. The processor is configured to perform a mode switch on the antenna elements to switch between the first mode and the second mode, determine, after the mode switch, a new beam to use during a first BM cycle, perform, using the new beam, the first BM cycle to obtain signal quality measurements, and perform a second BM cycle using an updated beam based on the signal quality measurements.

Apparatus are provided for a sensor platform. The sensor platform includes a sensor mount adapted to receive a sensing device, and a first articulation system that has a first rotational axis. The sensor platform includes a second articulation system that has a second rotational axis, and the second rotational axis is different than the first rotational axis. The sensor platform includes a base that supports the first articulation system, the second articulation system and the sensor mount. The first articulation system and the second articulation system are independently movable to define two degrees of freedom for positioning the sensor platform.

Methods and apparatus are provided for controlling a movement of a sensor platform. The method includes receiving a desired position of the platform from a source. The desired position includes a first coordinate value and a second coordinate value. The method includes, based on the first coordinate value and the second coordinate value, calculating, by a processor, a first value associated with a first axis of rotation of the platform and calculating a second value associated with a second axis of rotation of the platform. The method includes outputting, by the processor, one or more control signals to at least one motor associated with the platform to move the platform based on the first value and the second value.

A method and a system for locating underground targets by using radar signals emitted from a radar transmitter coupled to a transmitter antenna, and echoed signals collected from a target by a radar receiver coupled to a transmitter antenna. The radar signals are collected via the receiver antenna which translates above ground along a closed course in cooperation with the transmitter antenna. The radar signals are processed in correlation with time and with a respective momentaneous location of the receiver antenna and the location of the transmitter antenna. The transmitter antenna is disposed on a land borne platform and the receiver antenna is disposed on the same land borne platform or on another land borne platform or on an airborne platform. The land borne platform and the airborne platform are selected as a mobile platform, a driver guided platform, a remotely guided platform, or an autonomously guided platform.

The present disclosure relates to a vehicle radar device, a controlling method thereof, and radar system. A radar device according to an embodiment includes a transceiver being controlled to transmit the transmission signal in an operating frequency band according to a selection mode among a plurality of frequency band modes and to receive the reception signal through the receiving antenna, and a mode selector dynamically determining one of the plurality of frequency band modes as the selection mode based on at least one of a target distance to the target and a maximum detection distance for each frequency band. According to embodiments of the present disclosure, the distance resolution of the radar can be optimized by dynamically varying the frequency bandwidth linked with the maximum detection distance according to a target distance under specific driving conditions.

A non-transitory computer-readable medium stores instructions that cause processors to obtain an N×M range matrix comprising radar data indexed by velocity and antenna and an M×S steering matrix comprising expected phases indexed by antenna and hypothesis angle. For each unique X×Y range slice corresponding to a particular set of X velocities, processors store the particular range slice in a first buffer. For each unique Y×Z steering slice corresponding to a particular set of Y antenna, processors store the particular steering slice in a second buffer. The processors perform beamforming operations on the range, steering, and intermediate slices, storing the result in a third buffer as the intermediate slice. After each steering and range slice for the particular set of X velocities has been iterated through, the processors store the intermediate slice as a beamforming slice for the particular set of X velocities and the hypothesis angles.

According to the disclosure, an increase in costs is suppressed and the influence of main bang is reduced. A signal processing device includes a hardware processor programmed to at least: calculate a correction value of strength for each of distances from an antenna based on a received signal including a signal acquired by multiple transmissions and receptions via the antenna; and suppress a level indicated by received data generated based on the received signal for each of the distances by using the correction value for each of the distances.

A method for forming 3D image data representative of the subsurface of infrastructure located in the vicinity of a moving vehicle. The method includes: rotating a directional antenna, mounted to the moving vehicle, about an antenna rotation axis; performing, using the directional antenna whilst it is rotated about the antenna rotation axis, a plurality of collection cycles in which the directional antenna emits RF energy and receives reflected RF energy; collecting, during each of the plurality of collection cycles performed by the directional antenna.

A radar sensor having a frame, a housing arranged at the frame, a transmission and reception unit for high frequency signals arranged within the housing, wherein a radiation direction of the high frequency signals irradiated by the transmission and reception unit is rotatable about an axis of rotation. The radiation direction of the high frequency signals irradiated by the transmission and reception unit is substantially orthogonally oriented toward the axis of rotation, and the housing is supported at the frame rotatably about a pivot axis.