Abstract: A method for ascertaining a plant height of field crops. The ascertainment of the plant height taking place with the aid of a signal of a radar sensor.

Abstract: In Intelligent Vehicle Infrastructure Cooperative Systems (IVICS), a high-precision vehicle positioning method utilizing Ultra-Wide Band (UWB) is proposed. Owing to remarkable wide band of radio signal, this UWB-based positioning method shows excellent anti-interference capability and multi-path immunity, which are essential for achieving high precision in practical traffic scenario. In this approach, several UWB nodes are deliberately deployed at the crossing with the help of roadside infrastructure in IVICS. Meanwhile, an algorithm aiming at Non Line of Sight (NLOS) error compensation is developed to improve the positioning performance. In a word, this method has been demonstrated the potential to achieve accurate, reliable, continuous and integrated localization.

Abstract: A real-time automotive radar simulation tool is developed based on reduced statistical models summarized from physical-based asymptotic and full-wave simulations. Some models have been verified with measurements. The simulation tool can help save cost and time for the automotive industry, especially for autonomous vehicles. The simulation tool can also help develop new functionalities like target identification or classification as well as help prevent false alarms.

Abstract: A system may include a processor configured to: receive ambient data from an environment; calculate an average amplitude of the ambient data as a measure of a noise floor; receive a signal of interest found by the signal exceeding a noise riding threshold, the noise riding floor being an upward offset from the noise floor; calculate a running average for amplitude and frequency of the signal of interest; calculate a running variance for the amplitude and the frequency of the signal of interest; use the running average and the running variance to provide an adjustment to limits for modulation detection; use an offset from the noise riding threshold to provide a signal qualification minimum amplitude; and qualify the signal of interest based at least on the signal qualification minimum amplitude.

Abstract: The present disclosure relates to a measuring system for measuring a measured object, in particular a plastic profile, said measuring system comprising: an antenna arrangement of THz transceivers each at times actively emitting a THz transmission beam and passively receiving reflected THz radiation, where said antenna arrangement outputs measuring signals of the measurements of the THz transceivers, an adjustment means for adjusting the antenna arrangement into several measuring positions along an adjustment direction, a control and evaluation device for receiving and evaluating the measuring signals which is configured such that the measuring signals are evaluated by means of a synthetic aperture radar evaluation process and a virtual model of the boundary surfaces of the measured object is created, and subsequently the control and evaluation device determines layer thicknesses between the boundary surfaces from the virtual model.

Abstract: A lamp for an automobile and an automobile including the lamp. According to one aspect, the lamp is for an automobile and includes a light source and an anti-reflection coating layer attached to a portion of a surface of a lens. The anti-reflection coating layer preventing deterioration in quality of the image captured by the camera due to the light emitted from the light source in the lamp.

Abstract: A sensor cluster device including a radar sensor configured to emit electromagnetic waves onto an object and receive the electromagnetic waves reflected from the object so as to acquire information on the object, a lidar sensor configured to emit laser beams onto the object and receive the laser beams reflected from the object so as to acquire information on the object, a camera sensor configured to capture an image of surroundings of the object and acquire information from the captured image, and an infrared sensor configured to detect heat radiated from peripheral objects in the surroundings of the object to acquire the object and the peripheral objects.

Abstract: An apparatus for detecting and recording insect flying activities, such as outside a bee hive, with a Doppler radar is described. Also described is a system including a plurality of apparatuses for detecting and recording insect flying activities, such as outside a bee hive, with a Doppler radar.

Abstract: The vehicle radar apparatus may include a transmitting array antenna configured to radiate radar signals for forward detection, N receiving array antennas configured to receive the radar signals reflected from a target after being radiated from the transmitting array antenna, and a control unit configured to estimate an azimuth of the target by using non-offset receiving array antennas among the N receiving array antennas and estimate an elevation of the target by using a phase difference between an offset receiving array antenna and the non-offset receiving array antenna among the N receiving array antennas and the azimuth of the target.

Abstract: A system for generating a three dimension (3D) imaging of an object, the system comprising: an electromagnetic transducer array such as an RF (radio-frequency) antenna array surrounding the object said array comprising: a plurality of electromagnetic transducers; a transmitter unit for applying RF signals to said electromagnetic transducer array; and a receiver unit for receiving a plurality of RF signals affected by said object from said electromagnetic transducers array; a Radio Frequency Signals Measurement Unit (RFSMU) configured to receive and measure said plurality of plurality of affected RF signals and provide RF data of the object; and at least one processing unit, configured to process said RF data to identify the dielectric properties of said object and construct a 3D image of said object.

Abstract: A target detection device is provided, which includes a transmission array and a signal generator. The transmission array includes a plurality of transmission elements configured to convert an electric signal into a transmission wave. The signal generator generates first and second sets of electric signals, each set being generated with different phase settings. The signal generator groups the transmission elements according to grouping configurations including first and second grouping configurations. In the first grouping configuration, the plurality of transmission elements are grouped into a plurality of groups each having p transmission elements, and, in the second grouping configuration, the plurality of transmission elements are grouped into a plurality of groups each having q transmission elements.

Abstract: Methods, systems and devices for monitoring the stress of a rail, in particular, of continuous welded rail (CWR), providing a device that includes radar processing mechanisms and circuitry which is mountable on a rail to be monitored. The radar unit is sealed in a housing and projects a beam to a fixed target that is within a detection range of the radar unit. The radar unit also includes circuitry that allows programming of readings to take place at predetermined time intervals so changes and the extent of changes in conditions of the rail may be determined, and communicated to a remotely situated monitoring device, which may take place through a gateway or other communication network. The devices also may be used to measure temperature and other properties, rail conditions within a tunnel, such as proximity of the rail to walls, as well as ground condition, and bridge monitoring.

Abstract: A method and system for determining a position using a rotatable antenna array is provided. The method and system may include receiving first location information at a first stopping point by one or more antenna of a rotatable antenna array, the first stopping point of each of the one or more antenna being different, rotating the one or more antenna from the first stopping point to a second stopping point using the rotatable antenna array, receiving second location information at the second stopping point by the one or more antenna of the rotatable antenna array, the second stopping point of each of the one or more antenna being different, and determining an average location using the first location information and the second location information.

Abstract: One-dimensional data obtained by performing a Fourier transform on a digitally converted frequency modulated continuous wave (FMCW) radar signal at every pulse repetition interval is input to a recurrent neural network (RNN) to find the probability of the existence of a target in each range index. The range indices, i.e., bit frequencies are selected based on the probability. In order to reduce the size of the RNN, windowing may be applied. In addition, a speed-index-specific coefficient value may be calculated by accumulating and performing a Fourier transform on the selected bit frequencies in which the target exists over a plurality of pulse repetition intervals. Thus, it is possible to calculate the speed of the target.

Abstract: Methods, systems, and devices for wireless communications are described. User equipment (UE), such as vehicles, may implement radar transmissions to detect and avoid potential collisions with a target such as other UE or pedestrians. A first UE may receive an indication of a location of a second UE and an indication of one or more parameters associated with radar transmission from the second UE. The first UE may also receive a radio frequency waveform that includes a first component associated with the radar transmissions from the second UE and a second component that is associated with reflected radar transmission from the first UE. The first UE may compensate for an interference from the first component based on the location of the second UE and the one or more parameters. The first UE may generate a radar image from the received radio frequency waveform based on compensating for the interference.

Abstract: Antenna structures and assemblies for use in RADAR sensor assemblies and the like. In some embodiments, the assembly may comprise a feed waveguide comprising one or more feeding slots and a parallel plate waveguide operably coupled with the feed waveguide such that each of the one or more feeding slots of the feed waveguide is configured to inject electromagnetic energy into the parallel plate waveguide. A plurality of radiating slots may be formed in a plurality of rows and/or columns extending away from the feed waveguide to deliver electromagnetic energy out of the antenna assembly.

Abstract: Examples disclosed herein relate to a multi-sensor fusion platform for use in autonomous vehicles, the multi-sensor fusion platform including a camera perception engine having a camera neural network to detect and identify objects in camera data, a lidar perception engine having a lidar neural network to detect and identify objects in lidar data, and a radar perception engine having a radar neural network to detect and identify objects in radar data, such that training of the radar neural network is bootstrapped with the camera and lidar neural networks.

Abstract: A printed circuit board mounted radar system for monitoring a target region, including an array of transmitting antennas mounted to a printed circuit board, an array of receiving antennas mounted to the printed circuit board, a wave deflection mechanism mounted to the printed circuit board configured such that waves transmitted perpendicularly to the board by the array of transmitting antennas are incident upon the wave deflection mechanism and are directed radially away from the board, and waves reflected from objects within the target region radially towards the wave deflection mechanism are directed towards the receiving antennas in a direction perpendicular to the board.

Abstract: The present application provides a navigation augmentation method and system, the method includes: broadcasting, by satellites of a Low Earth Orbit (LEO) constellation, navigation direct signals and navigation augmentation information; performing, by a user receiver, precise positioning, speed measurement and timing according to the navigation direct signals of navigation satellites, the navigation direct signals of the LEO satellites and the navigation augmentation information broadcasted by the LEO satellites.

Abstract: The disclosure concerns a method for determining a change in position and orientation of an object using data from a synthetic aperture radar (SAR) with the following steps: acquiring a radar image containing the object; dividing the radar image into at least two subimages; acquiring short radar information comprising a first reflected pulse, which has been recorded by the radar and/or a quantity derived therefrom, the first reflected pulse having information about image data of the radar image; for the short radar information, performing an autofocus method which determines a change in distance for each of the at least two subimages; and determining the change in position and orientation of the object given for each point of the object by the respective change in distance of the corresponding subimage.