In an embodiment, a method for authenticating a user of a car includes: transmitting a plurality of radiation pulses through a predetermined portion of a surface of the car towards a portion of a hand of the user using a millimeter-wave radar; receiving a reflected signal from the portion of the hand using the millimeter-wave radar; generating a fingerprint signature based on the reflected signal; comparing the fingerprint signature to a database of authorized fingerprint signatures; and authorizing the user based on whether the fingerprint signature matches an authorized fingerprint signature of the database of authorized fingerprint signatures.

A sensing device detects an object in a blind spot in a surrounding environment of a mobile body. The sensing device includes a distance measurer, a detector, a controller, and a state receiver. The distance measurer acquires distance information indicating a distance from the mobile body to the surrounding environment. The detector detects the object in the blind spot. The controller controls operation of the detector. The state receiver acquires condition information indicating a state relating to slipperiness of the mobile body on a road surface on which the mobile body travels. The contoller detects the blind spot in the surrounding environment, based on the distance information acquired by the distance measurer. The controller controls precision at which the detector is caused to detect the object in the blind spot, according to the condition information acquired by the state receiver.

Techniques are discussed for determining reflected returns in radar sensor data. In some instances, pairs of radar returns may be compared to one another. For example, a velocity associated with a first radar return may be projected onto a radial direction associated with a second radar return to determine a projected velocity. In some examples, the second radar return may be a reflected return if the magnitude of the projected velocity corresponds to a magnitude of the second radar return. In some instances, a vehicle, such as an autonomous vehicle, may be controlled at the exclusion of information from reflected returns.

A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on the environment, the current information stored in the radar system, and/or external information provided to the radar system. The system allows improved resolution of range, Doppler and/or angle depending on the desired objective.

Systems, methods and apparatuses of radar Electronic Control Units (ECUs) of autonomous vehicles. A radar ECU can include: a memory configured to store a radar image and an Artificial Neural Network (ANN); an inference engine configured to use the (ANN) to analyze the radar image and generate inference results; and a communication interface coupled to a computer system of a vehicle to implement an advanced driver assistance system to operate the controls according to the inference results and a sensor data stream generated by sensors configured on the vehicle.

A notification device of an approaching vehicle detects an approach of the other vehicle running a crossroad intersecting a run way of an own vehicle at an anterior intersection and an arrival direction thereof by a radar sensor and notifies a driver thereof. A reflection distance-acquisition part computes a reflection distance Xw according to a difference between absolute values of an X-axis component of a relative position acquired by the radar sensor and an X-axis component of a converted relative position acquired by a relative-position acquisition part of the other vehicle in an X-Y rectangular coordinates with its origin at a location and a Y-axis in a traveling direction of the own vehicle. A notification restriction part forbids a notification of the arrival direction of the other vehicle when the Xw has not fluctuated for a predetermined time or longer.

A system compensates a motion of a vehicle component relative to another vehicle component or ground. One or more sensors are supported by the vehicle component. The system includes a control unit configured to perform the following acts: receiving sensor data from the one or more sensors; detecting the motion of the vehicle component; and determining compensation data to enable a compensation of deviations in sensor data that are caused by the motion.

Examples disclosed herein relate to an autonomous driving system in an vehicle. The autonomous driving system includes a radar system configured to detect a target in a path and a surrounding environment of the vehicle and produce radar data with a first resolution that is gathered over a continuous field of view on the detected target. The system includes a super-resolution network configured to receive the radar data with the first resolution and produce radar data with a second resolution different from the first resolution using first neural networks. The system also includes a target identification module configured to receive the radar data with the second resolution and to identify the detected target from the radar data with the second resolution using second neural networks. Other examples disclosed herein include a method of operating the radar system in the autonomous driving system of the vehicle.

In a method and a device for operating a first vehicle, a method includes receiving a signal from an external processing unit for influencing a first surroundings sensor system of the first vehicle, influencing the first surroundings sensor system dependent on the received signal, receiving surroundings data values detected by at least one second surroundings sensor system of a second vehicle and that at least partially represent surroundings of the first vehicle, and operating the first vehicle dependent on the influence of the first surroundings sensor system and the received surroundings data values.

A method for interpolated virtual aperture array radar tracking includes: transmitting first and second probe signals; receiving a first reflected probe signal at a radar array; receiving a second reflected probe signal at the radar array; calculating a target range from at least one of the first and second reflected probe signals; corresponding signal instances of the first reflected probe signal to physical receiver elements of the radar array; corresponding signal instances of the second reflected probe signal to virtual elements of the radar array; interpolating signal instances; calculating a first target angle; and calculating a position of the tracking target relative to the radar array from the target range and first target angle.