Disclosed are aspects of a radar system for a vehicle that includes a radar circuit for generating and processing radar signals, wherein the radar circuit includes a ground plane connector for an electrical connection with an antenna ground plane. The radar system also includes a radar antenna assembly for transmitting radar signals into a traffic space and for receiving radar signals reflected by objects present in the traffic space. The radar system further includes a component of the vehicle. The ground plane connector is electrically connected to the component of the vehicle.

A radar device includes: a control unit to cause a series of processing to be repeatedly executed, the series of processing including transmitting transmission signals to space using transmission antennas arranged linearly, receiving reflected signals that are the transmission signals reflected in the space using reception antennas linearly arranged in the same direction as the transmission antennas, transmitting the transmission signals simultaneously from the transmission antennas, receiving the reflected signals by the reception antennas, and acquiring digital data; and a signal processing unit to generate a three-dimensional radar image of a target moved in a direction crossing an antenna arrangement direction of the transmission antennas and the reception antennas by using the digital data sequentially acquired in the series of processing repeatedly executed as two-dimensional array data.

A fast ramp frequency modulated continuous wave (FMCW) radar system (100) is described herein, where the fast ramp FMCW radar system is configured to employ velocity labeled multiplexing (VLM) in connection with generating detections for objects in a scene. Transmitters (110, 112) in the radar system are assigned different velocity labels that corresponds to different phase rates of change of consecutive chirps in signals emitted by the transmitters. Approaches for generating detections based upon echo signals that correspond to the emitted signals are also described herein.

Provided are a representative point extraction circuitry that extracts a representative reflection point of a target a line segment setting circuitry that sets a plurality of detection line segments of the same length that extend from the representative reflection point and are arranged within the irradiation field at intervals about the representative reflection point as a center, a reflection point counter that counts a coordinate point indicating a reflection level higher than a second threshold value as a reflection point by using the second threshold value, and a reflection point determinator that determines a reflection point counted in the detection line segments to a top second place in which the number of reflection points is large, as a reflection point from the target.

System and method for operating a radar system that includes a plurality of antennas, wherein a respective antenna signal is received from each of the antennas and is converted into a digital antenna signal via an analog-to-digital conversion. Digital signal data of the antennas are provided in a data memory. Signal evaluation is performed in a two-stage design, where a predetermined subset of the signal data is supplied to an evaluation module for a target detection, and resolution cells for which, the associated resolution gate meets a predetermined occupancy criterion are selected, and only the signal data available in the data memory for the selected resolution cells are selected for these resolution cells for further processing.

One embodiment of the disclosure relates to a vehicle radar device and a method for controlling the same. According to the present embodiments, a vehicle radar device may comprise an antenna unit including Nt transmission antennas and Nr reception antennas, wherein Nt is a natural number equal to or larger than 1, and Nr is a natural number equal to or larger than 2, a transceiver controlling the transmission antenna to transmit a transmission signal and the reception antenna to receive a reception signal reflected by a target, a signal processor detecting one or more peak signals for the target and separately detecting Nt*Nr channel reception signals corresponding to each peak signal, a target angle estimator calculating a target angle estimate from k channel reception signals selected from among the Nt*Nr channel reception signals, and a target size information estimator calculating size information about the target based on up to .sub.NV*NrCk target angle estimates calculated by the target angle estimator.

Systems and methods for determining precise pick-up locations for passengers who have requested autonomous vehicle rides. In particular, systems and methods are provided for using wireless signals to determine user location. In some examples, wireless ranging technology, such as Ultra Wide Band (UWB), is used to determine the user location. Wireless transceivers are used to determine a mobile device's range, and range information from multiple transceivers is used to determine the mobile's device's position. In some examples, triangulation is used to determine user location, such as triangulation between one or more wireless transceivers and the mobile device. In various examples, wireless transceivers are installed on autonomous vehicles, and in some examples, wireless transceivers are installed in various static locations (e.g., on buildings, lamp posts, or other structures.

A radar device includes a transmission antenna and a reception antenna that is a structure different from the transmission antenna. The transmission antenna includes a single or a plurality of transmission element antennae and a transmission dielectric substrate where the single or the plurality of transmission element antennae is positioned, and a length in a first direction of the transmission antenna is longer than a length in a second direction of the transmission antenna, and the second direction is orthogonal to the first direction. The reception antenna includes a single or a plurality of reception element antennae and a reception dielectric substrate where the single or the plurality of reception element antennae is positioned, a length in a third direction of the reception antenna is longer than a length in a fourth direction of the reception antenna, and the fourth direction is orthogonal to the third direction.

Data memory protection is provided for a signal processing system such as a radar system in which the data memory is protected with a common set of parity bits rather than requiring a set of parity bits for each memory word as in Error Correction Coded (ECC) memories. The common set of parity bits may be updated as memory words in the data memory are accessed as part of signal processing of one or more digital signals. The memory protection ensures that in the absence of memory errors the common parity bits are zero at the end of processing the digital signals as long as each word in the data memory that is used for storing the signal processing data is written and read an equal number of times.

Data memory protection is provided for a signal processing system such as a radar system in which the data memory is protected with a common set of parity bits rather than requiring a set of parity bits for each memory word as in Error Correction Coded (ECC) memories. The common set of parity bits may be updated as memory words in the data memory are accessed as part of signal processing of one or more digital signals. The memory protection ensures that in the absence of memory errors the common parity bits are zero at the end of processing the digital signals as long as each word in the data memory that is used for storing the signal processing data is written and read an equal number of times.