Abstract: A battery monitoring system includes at least one group of a plurality of battery cells connected in series and including a first battery cell at a highest potential and a second battery cell at a lowest potential; and a first semiconductor device capable of measuring a voltage of the at least one group of the battery cells. The first semiconductor device includes: a first terminal connected to a high potential side of the first battery cell through a first filter, the first filter being connected to a low potential side of the second battery cell; a second terminal connected to the high potential side of the first battery cell through a second filter, the second filter being connected to the low potential side of the second battery cell; a first discharge circuit connected to the first terminal; and a first circuit connected to the second terminal.

Abstract: A power receiving device that wirelessly receives power from a power transmission device includes a power receiving antenna, a plurality of power receiving circuits that each includes a switching element and is connected in parallel with each other, a plurality of current detection sensors that is arranged in the plurality of power receiving circuits and is configured to output detection values, one or more processors, and one or more memories that store a computer-readable instruction for causing, when executed by the one or more processors, the power receiving device to compare the detection values output from the plurality of current detection sensors, and determine whether an abnormality has occurred based on results of comparison.

Abstract: The disclosure relates in some aspects to an apparatus that includes stages of a failure event counting circuit including an Nth stage where N refers to an arbitrary stage of the stages of the failure event counting circuit. The Nth stage may include an Nth fuse trigger circuit configured to receive an event detector signal indicative of a failure event, an Nth electronic fuse configured to disconnect a circuit path between a voltage source and a ground in response to the event detector signal, and an Nth delay circuit coupled to the Nth e-fuse and configured to cause a time delay for activating a subsequent stage of the failure event counting circuit in response to the Nth e-fuse disconnecting. In this aspect, each of the stages of the failure event counting circuit may be configured to use the respective e-fuse to record a discrete failure event.

Abstract: A short-circuit determination circuit includes a current detection unit, a voltage detection unit, and a short-circuit determination unit. The current detection unit detects the current flowing in a power circuit. The voltage detection unit detects the voltage applied to the power circuit. The short-circuit determination unit determines a short circuit in the power circuit on the basis of the difference between a detection value of the current detected by the current detection unit and a detection value of the voltage detected by the voltage detection unit.

Abstract: A magnetic sensor includes a plurality of MR elements, a plurality of yokes each including a portion long in a first direction, and a plurality of shields each including a portion long in a second direction. The plurality of MR elements include a plurality of first specific elements. The plurality of yokes include a plurality of yoke pairs each including one of the plurality of first specific elements. The plurality of shields include a plurality of shield pairs each with one of the plurality of first specific elements therebetween. The plurality of first specific elements are arranged in a direction intersecting both the first direction and the second direction.

Abstract: A magnetic sensor includes a substrate including a top surface, an insulating layer including an inclined surface, and a magnetic detection element disposed on the inclined surface. The magnetic detection element includes a first side surface and a second side surface. The first side surface is located at a position forward in a first direction that is one direction along the inclined surface. The second side surface is located at a position forward in a second direction that is another direction along the inclined surface. The magnetic detection element includes a first non-constant portion in which a gap between an upper end of the first side surface and an upper end of the second side surface becomes smaller along the longitudinal direction of the magnetic detection element.

Abstract: Some aspects of the technology described herein provide for a deployable guard device configured to be coupled to a portable magnetic resonance imaging (MRI) device, the deployable guard device comprising: a plurality of arms that, when the deployable guard device is in a deployed position, at least partially surround a region within which a magnetic field strength of a magnetic field generated by the portable MRI device equals or exceeds a threshold field strength; and at least one deployment device configured to generate a force to facilitate moving the deployable guard device from an undeployed position to the deployed position.

Abstract: A radio-frequency power amplification module for a magnetic resonance system and an imaging method are provided. The radio-frequency power amplification module includes: a power synthesizer, a main amplifier, and an auxiliary amplifier, output ends of the main amplifier and the auxiliary amplifier being both connected to a power synthesis unit; and a controller. The controller is configured to output a control signal according to a required radio-frequency transmission parameter or a scan parameter corresponding to the radio-frequency transmission parameter, so as to adjust a control parameter of the auxiliary amplifier. The radio-frequency power amplification module has high efficiency.

Abstract: Systems and methods are disclosed for increasing a nuclear spin polarization of a target compound. In accordance with such systems and methods, a first non-thermal equilibrium nuclear spin polarization can be imparted to at least one source atom of a source compound, the source atom having a nuclear gyromagnetic ratio of at least 12 megahertz per tesla (MHz/T). A first solution can be obtained that includes the source compound and a target compound. The at least one source atom can be present in a source concentration of at least 0.1 molar (M) in the first solution. A second non-thermal equilibrium nuclear spin polarization of at least 0.01% can be imparted to the at least one target atom of the target compound via a nuclear Overhauser effect (NOE) transfer of the first non-thermal equilibrium nuclear spin polarization to the at least one target atom.

Abstract: A method for generating magnetic resonance (MR) images using a magnetic resonance imaging (MRI) system includes determining an optimized set of sequence parameters for a pulse sequence using an optimization framework comprising a systematic error index (SEI) configured to characterize errors, performing, using the MRI system, the pulse sequence comprising the optimized set of sequence parameters to acquire data from a subject, and generating at least one image of the subject using the acquired data.

Abstract: A processing circuitry sets a first acquisition area and a second acquisition area, which are a target for signal acquisition through triaxial localization, in such a manner that the first acquisition area does not three-dimensionally overlap with the second excitation area for the second acquisition area, and the second acquisition area does not three-dimensionally overlap with the first excitation area. A pulse sequence generator acquires a first magnetic resonance signal by selectively exciting the first excitation area, and acquires a second magnetic resonance signal by selectively exciting the second excitation area.

Abstract: A dynamic contrast-enhanced MRI reconstruction method may include: when preparing to inject a contrast agent and during injection thereof, using a DCE-MRI sequence to scan an imaging target, and using a high temporal resolution scanning parameter value pre-inputted by a user to acquire K-space data of each phase with high temporal resolution; based on the acquired K-space data of each phase with high temporal resolution, reconstructing an image of each phase with high temporal resolution; based on a low temporal resolution reconstruction parameter value pre-inputted by the user, subjecting adjacent K-space data of multiple phases with high temporal resolution to summing and averaging in a complex field, and subjecting K-space data obtained after averaging to image reconstruction, to obtain an image of each phase with low temporal resolution. Advantageously, images with high and low temporal resolution can be obtained simultaneously with just a single DCE-MRI scan.

Abstract: Techniques for performing iterative MRI image reconstruction by learning complementary multi-prior knowledge from images, k-space data, and calibration data are disclosed. In one method, k-space data is obtained from an MRI scan. Image-space modifications are performed on the k-space data using a first neural network trained to operate on data in image space. The k-space data is converted from the frequency domain to a spatial domain to produce input image-space data. Using the first neural network, output image-space data is generated, which is then converted from the spatial domain to the frequency domain. K-space modifications are performed on the k-space data using a second neural network trained to operate on data in k-space. ACS are encoded using a third neural network to guide the second neural network in learning consistency-aware k-space correlations. The k-space data is converted from the frequency domain to the spatial domain to obtain a reconstructed image.

Abstract: A method for reconstructing images using a self-calibrated subspace reconstruction includes receiving data acquired from a subject using a magnetic resonance imaging (MRI) system, generating aliasing-free low resolution images from at least a portion of the received data using temporally local low-rank matrix completion, estimating a temporally global subspace using the aliasing-free low resolution images, and generating aliasing-free high resolution images from the received data using temporally global subspace reconstruction that utilizes the estimated temporally global subspace. In some embodiments, a customized outlier detection algorithm can then be used to detect measurement errors in the aliasing-free high resolution images and to correct the aliasing-free high resolution images. Aliasing-free T1, T2, and ADC maps may be generated after comparing the corrected aliasing free high resolution images with a dictionary.

Abstract: Provided is an MRI apparatus that supports re-setting of an imaging condition for preventing occurrence of aliasing in a phase encoding direction. A region in which an aliasing signal causing aliasing occurs is estimated by using a FOV set at the beginning and a positioning image, a range of the FOV to be changed or a weighting amount of each channel of a reception coil is calculated based on an estimation result, and an imaging condition is changed. Thereafter, a main scan is executed, and in a case where a weight of the reception coil is changed, channel combination is performed using the changed weight.

Abstract: A Magnetic Resonance Imaging apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain a plurality of diffusion weighted images including a plurality of first diffusion weighted images taken while a first Motion Probing Gradient (MPG) is applied in a plurality of directions and a plurality of second diffusion weighted images taken while a second MPG having a b value of a different magnitude from that of a b value calculated for the first MPG is applied in the plurality of directions. The processing circuitry is configured to calculate an elastic modulus of a biological tissue with respect to each of a plurality of directions, on the basis of the plurality of diffusion weighted images.

Abstract: Provided is a weighted reconstruction technique of a channel for suppressing a blood flow artifact and a body movement artifact in imaging using a multi-channel reception coil. In a case of reconstructing an image of a subject by using a nuclear magnetic resonance signal collected by each of a plurality of channels of a reception coil, by using a positioning image, an organ or a region causing a blood flow artifact and a body movement artifact in the subject is specified, a weight of each channel is decided by using information on the specified organ or region, and weighted reconstruction is performed by using the weight.

Abstract: A method and apparatus for measuring the angle of arrival AOA of Wi-Fi packets, using a switched beam antenna SBA is described. Wide antenna beams, quadrants, are selected in turn and a burst of packets is transmitted on each quadrant. The quadrant with the highest average signals strength is selected. Then the narrow antenna beams that make up that selected quadrant are selected, in sequence, and the average signal strength for each narrow beam is recorded. The narrow beam with the highest average signal strength is returned as the AOA. Based upon which narrow beam recorded the highest signal strength, the next sequence of antenna beams is selected. When the SBA is mounted on a mobile platform, the parameters of the transmission bursts are chosen such that the angular error due to cornering of the platform is negligible.

Abstract: A wave motion signal processing device that includes a spectrum generation unit that generates a first spectrum with high resolution and a second spectrum with low resolution based on an input signal derived from a wave motion detected by at least one sensor, an extraction unit that extracts, from the second spectrum, a first peak satisfying an extraction condition in a target time window, a tracking unit that tracks, in the first spectrum, a second peak satisfying the extraction condition with regard to a time frame following the target time frame from which the first peak is extracted, and a waveform generation unit that generates a peak waveform, which is time-series data of a frequency including a plurality of second peaks, having the first peak as a starting end.

Abstract: Systems and methods for calibrating a distance model and estimating a distance between one or more wireless devices, such as one or more Bluetooth or other types of wireless devices, for social distancing and contact tracing are described. The system includes at least one processor configured to determine an environmental fingerprint from an acoustic signal propagating within an environment, such as a room or another area. The environmental fingerprint may be compared to a database of predefined environmental fingerprints and one or more similar predefined environmental fingerprints identified. The predefined environmental fingerprints may be associated with one or more distance model parameters, which may be used to calibrate a distance model. In addition, the predefined environmental fingerprints may be associated with pretrained distance models. The calibrated or pretrained distance models may be used to process wireless signals in the environment to estimate the distance between users of wireless devices.

Abstract: Methods and systems are described herein for time synchronization of a distributed sensor array system (“distributed system”). The distributed system includes multiple sensor nodes, which are time-synchronized using a combination of RF signal data and message-based time techniques across multiple communications mechanisms. Time synchronization is implemented both internally between a sensor node's components and over-the-air between different sensor nodes. The distributed system further employs multiple layers of standardized and custom synchronization protocols to build a scalable, potentially zero-hop, time transfer network. The time synchronization accuracies achieved by the time transfer network enable coherency in the distributed system.

Abstract: A method for geolocating a receiver by measuring times of reception, by the receiver, of a plurality of geolocation signals originating from a plurality of emitters, the geolocation signals are emitted on multiple different wavelengths, at least one geolocation signal having a frequency less than 1 GHZ.

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) transmits a first request assistance data message to a location server, the first request assistance data message comprising a request for first positioning assistance, receives a provide assistance data message from the location server, the provide assistance data message indicating that the location server is not currently able to provide the first positioning assistance, and transmits a second request assistance data message to the location server after expiration of a reattempt time from reception of the provide assistance data message, the second request assistance data message indicating a request for second positioning assistance, wherein the first positioning assistance is not received by the UE prior to the reattempt time.

Abstract: An assistance data selection and use method includes: obtaining, at a user equipment, a plurality of assistance data sets each indicating a respective plurality of positioning reference signal resources; selecting, at the user equipment, a desired assistance data set from the plurality of assistance data sets based on positioning performance information; and either: transmitting, from the user equipment, a first positioning reference signal in accordance with the desired assistance data set; or receiving, by the user equipment, a second positioning reference signal in accordance with the desired assistance data set.

Abstract: A method for estimating a position of an object comprises: receiving a motion event signal indicating a motion type of the object, the motion type being determined based on sensing data provided by one or more sensors; receiving one or more ranging measurements for distances between the object and one or more anchor points from a ranging device; determining a mode among a plurality of positioning modes based on the motion event and the one or more ranging measurements; and estimating a position of the object using the determined mode.

Abstract: The present application relates to a radar system comprises a first antenna, an additional antenna, a feed port, an additional feed port, a guiding section and an additional guiding section. The first antenna is coupled to the feed port via the guiding section and the additional antenna is coupled to the additional feed port via the additional guiding section. A radar circuit is configured to operate the first antenna independently from the additional antenna in a separated operation mode and to operate at least one antenna coupled to the feed port together with at least one antenna coupled to the additional feed port as parts of a single common antenna in a combined operation mode.

Abstract: A device includes a port and a transformer. The transformer includes a first coil that has a first node and a second node and a second coil that is coupled to the output port. The device also includes a pulse generator coupled to the first node to generate two or more pulses with a first period on the first node and a delay module that is coupled between the second node of the first coil and the pulse generator. The delay module is generates a time delay to the two or more pulses of the pulse generator before the two or more pulses are delivered to the second node. The second coil provides a signal at the port.

Abstract: Systems, methods, and apparatus for denoising signals are disclosed. In one aspect, an apparatus is provided. The apparatus may comprise a first denoiser configured to receive an input signal and to generate a denoised signal and a signal reverser configured to receive the input signal and to generate a time reversed signal. The apparatus may also include a second denoiser configured to receive the time reversed signal and to generate a denoised time reversed signal. Further, the apparatus may include a signal combiner configured to combine the denoised signal with the denoised time reversed signal to generate an output signal.

Abstract: A Pulse Signal Accumulation System for determining target proximity in supersonic and ultrasonic flying devices comprises the following components: digital processing block, high-frequency transceiver block, power supply block, antenna block, and communication block. The system is designed to accurately determine and provide alerts for the presence of targets within the influence zone of unmanned aerial vehicles (UAVs) operating at supersonic or ultrasonic speeds, enabling appropriate actions to be taken by the UAVs. Additionally, the system is equipped with self-checking and monitoring capabilities for the individual components within the overall system.

Abstract: A radar signal for transmitting by a radar transmitter, wherein the radar signal is modulated by a modulation signal comprising at least two repetitions of a sequence element, wherein the sequence element comprises at least two repetitions of at least two sequences of a same length, such that the modulation signal is periodic; wherein the at least two sequences are correlated such that a sum of correlation of the at least two sequences is less than ?60 dB, preferably less than ?70 dB, most preferably less than ?80 dB.

Abstract: A testing system for the accumulation of airborne collision warning Radio Frequency Airborne Accumulative Pulse Radar Warning SystemF pulse systems in space, to test the Radio Frequency Airborne Accumulative Pulse Radar Warning System collision warning pulse accumulation device. The system is utilized in laboratory settings or to assess the functionalities, parameters, and readiness of the Radio Frequency Airborne Accumulative Pulse Radar Warning System equivalent to its real-world operation. It also allows for monitoring and evaluating the operation of the entire RF system through signal communication transmitted from the Radio Frequency Airborne Accumulative Pulse Radar Warning System to the simulation system.

Abstract: Example embodiments relate to techniques for detecting adverse road conditions using radar. A computing device may generate a first radar representation that represents a field of view for a radar unit coupled to a vehicle and during clear weather conditions and store the first radar representation in memory. The computing device may receive radar data from the radar unit during navigation of the vehicle on a road and determine a second radar representation based on the radar data. The computing device may also perform a comparison between the first radar representation and the second radar representation and determine a road condition for the road based on the comparison. The road condition may represent a quantity of precipitation located on the road and provide control instructions to the vehicle based on the road condition for the road.

Abstract: A sending apparatus, detection system, and detection method of a lidar are configured to exclude a false target from a plurality of targets. Frequency-sweep optical signals with different slopes are introduced, the frequency-sweep slopes of the different frequency-sweep optical signals are opposite in sign in a time period, and absolute values of the frequency-sweep slopes are not equal. For a plurality of real targets, coherent detection is performed in at least two time periods separately corresponding to the different frequency-sweep optical signals.

Abstract: This application discloses a LiDAR anti-interference method and apparatus, a storage medium, and a LiDAR. The method is applied to a LiDAR, and the LiDAR includes a laser emission array and a laser receiving array. The method includes determining at least two laser emission units to be turned on in a measurement period, controlling the at least two laser emission units to emit laser beams based on a preset rule, and controlling respectively corresponding laser receiving units of the at least two laser emission units to receive echo beams, to detect a target object. The at least two laser emission units to be turned on are in different laser emission groups, and the at least two laser emission units to be turned on satisfy a physical condition of no optical crosstalk.

Abstract: Embodiments of this disclosure provide a light emitter and receiver module and a LiDAR. The light emitter and receiver module includes: a light emitter module and a light receiver module. The light emitter module is configured to emit a detection beam; the light receiver module is configured to receive an echo beam of the detection beam reflected by a target object and convert the echo beam into an electrical signal; and a field of view of the light emitter module configured to overlap vertically with a field of view of the light receiver module. In a first direction, a size of the field of view of the light emitter module is larger than a size of the field of view of the light receiver module, in a second direction, a size of the field of view of the light emitter module is smaller than a size of the field of view of the light receiver module, and the first direction is perpendicular to the second direction.

Abstract: An optoelectronic device (28, 130) includes an array (32, 152) of optical transceiver cells (34, 90, 162) including respective optical transducers (36, 134, 164) configured to couple optical radiation between the transceiver cells and a target through respective optical apertures defined by the optical transducers. A tunable radiation source (22, 210, 240) outputs coherent radiation while tuning a wavelength of the coherent radiation over a selected range. An optical distribution network (38) conveys the coherent radiation from the radiation source to the optical transceiver cells for transmission via the optical transducers toward the target. Projection optics (44, 140, 154) project the optical apertures onto respective fields of view on the target, and include a dispersive element (148, 156), which shifts the fields of view across the target responsively to the tuning of the wavelength.

Abstract: The technology of this application relates to a method including a first device constructing a ranging signal waveform through time reversal by using a channel impulse response of a channel between the first device and a second device or a received signal sent by the second device, to implement matching between a ranging signal and the channel, and the second device completing time of flight measurement based on a received signal by using a correlation operation, and determining, through sampling, whether a ranging process is interfered with, to implement integrity protection for the ranging signal. According to embodiments of this application, a receive end can have a capability of detecting whether a ranging process is interfered with, thereby ensuring integrity of a ranging signal without compromising ranging performance of a system.

Abstract: Embodiments of the present application provide a laser ranging method, device, and a LiDAR. The method includes: obtaining the quantity of light leading point cloud points in a first preset region in the current frame of point cloud, where the light leading point cloud points are point cloud points corresponding to echoes received by a receiver within a light leading period, and the light leading period is a period less than a first preset duration, starting from an emission moment of a laser beam corresponding to the light leading point cloud points; and adjusting the gain of the receiver within the light leading period to reduce the quantity of the light leading point cloud points.

Abstract: There is provided a method and device for time-of-flight (TOF) ranging. The method includes generating, by each photon detector in a photon detector array, a quantized current pulse each time a predefined number of photons is detected. The method further includes summing, by a current adder, the quantized current pulses from all photon detectors to create an analog signal pulse. The method further includes providing, by a peak detector, a digital pulse for each instance where an intensity of the analog signal pulse is greater than signal peaks already measured after the last emitted pulsed laser shot. The method further includes measuring and recording, by a time-to-digital converter (TDC), a TOF each time the digital pulse is provided. The method further includes providing, by a TOF output, a single TDC result indicative of a TOF associated with the analog signal pulse having a highest intensity.

Abstract: An example system includes a light detection and ranging (LIDAR) device that scans a field-of-view defined by a pointing direction of the LIDAR device. The system also includes an actuator that adjusts the pointing direction of the LIDAR device. The system also includes a communication interface that receives timing information from an external system. The system also includes a controller that causes the actuator to adjust the pointing direction of the LIDAR device based on at least the received timing information.

Abstract: A system is provided for imaging an underwater environment. The system includes at least six arrays of transducer elements. Each array is operated at a fixed phase shift and varies in frequency so as to beamform multiple sonar return beams of a first range of angles and a second range of angles. The arrays can be oriented to create arcs of sonar coverage extending at various angles from a watercraft. Accordingly, the at least six arrays can be positioned in a configuration such that a 360-degree live sonar image can be formed. Additionally or alternatively, the at least six arrays can be used to form partial (i.e., less than 360-degree) live sonar images, and the partial live sonar images can be updated or adjusted based on user input and/or desired object(s).

Abstract: A decoupling element for an ultrasonic sensor is disclosed. The ultrasonic sensor is able to be attached to a flat component for a vehicle. The flat component includes a cutout. The ultrasonic sensor includes a cylindrical ultrasonic transceiver element which is able to be introduced into the cutout. The decoupling element includes a hollow-cylindrical element for enclosing the cylindrical ultrasonic transceiver element of the ultrasonic sensor and a plurality of support ribs which are arranged in the radial direction outside the hollow-cylindrical element and are spaced apart from one another in a circumferential direction of the hollow-cylindrical element for supporting the decoupling element on a region of the flat component outside the cutout when the cylindrical ultrasonic transceiver element with the hollow-cylindrical element enclosing it is introduced by an end portion at an axial end into the cutout.

Abstract: According to one embodiment, a method includes receiving a first wireless signal transmitted from a first wireless device, receiving a second wireless signal transmitted from a second wireless device, and estimating a range of a propagation loss index corresponding to a space between the first wireless device and an information processing device based on a strength of the first wireless signal at the time of reception, a strength of the second wireless signal at the time of reception, and a distance between the first wireless device and the second wireless device. The propagation loss index is used to convert the strength of the first wireless signal into the distance between the first wireless device and the information processing device.

Abstract: A radio frequency (RF) sensing system (100) is provided comprising a RF transmitter (110) for wirelessly transmitting RF sensing signals (400) which comprises a group of n independent and subsequent messages (412-416) each modulated with a different frequency (412a-416a). The frequencies (412a-416a) of the subsequent messages (412-416) change in steps. Furthermore, an RF receiver (120) for receiving the group of n 5 subsequently transmitted messages (412-416) and a controller (130) are provided for performing a sensing operation based on the received group of n transmitted messages (412-416) each transmitted with their respective frequency (412a-416a).

Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) chains to transmit radar Tx signals, and a plurality of Receive (Rx) chains to process radar Rx signals. For example, the radar Rx signals may be based on the radar Tx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

Abstract: A method for angle estimation based on signals of a radar sensor with angular resolution in at least one dimension. The radar sensor includes a MIMO-enabled antenna array with at least three transmitting antennas and at least three receiving antennas. A cross-path model represented by a control matrix and models reflections of transmitted and/or received signals on a reflective surface is used to estimate a location angle of a radar target. The control matrix includes a Kronecker product Atx ?Arx of two submatrices, one, Atx, representing the arrangement of the transmitting antennas and the other, Arx, representing the arrangement of the receiving antennas. For calculating a DML estimation function, a matrix product Y=AHrx·X·A*tx is calculated approximately using an FFT from the submatrices and a reception matrix X that specifies the complex amplitudes of the signals received with different combinations of antennas.

Abstract: A method includes producing, at a radar sensor, a plurality of radar data points based on radar signal reflections received at the radar sensor. The method further includes, for one or more respective radar data points of the plurality of radar data points, calculating at the radar sensor a data item indicative of a measurement accuracy corresponding to the respective radar data point. The radar sensor then transmits the plurality of radar data points and the data item for each respective radar data point to a central radar processor. The data item is used to update a covariance matrix implemented by a Kalman filter at the central radar processor during the object tracking process.

Abstract: A radar-based system for communicating information to a vehicle uses spatially-encoded markers that are positioned proximate to a roadway traveled by the vehicle. The markers are designed to convey a unique radar signature that distinguishes the markers from other objects. The unique radar signature or marker characteristics are further interpreted by at least one controller on the vehicle as encoded messages. Marker distinguishing characteristics, such as size, shape, orientation and movement, provide distinct information to the controller. The controller may use the conveyed information to make control decisions for the vehicle or to display the conveyed information to occupants of the vehicle. In some cased, the controller may use the conveyed information to determine a location of the vehicle, such as a position of the vehicle within a lane.

Abstract: A method includes determining, for each time interval in a series of time intervals, (i) whether at least one wireless signal measurement was received in the time interval, each wireless signal measurement associated with a pair of anchors, and (ii) whether at least one step was detected in the time interval. The method also includes selecting a state of a tracking filter state machine based on whether the at least one wireless signal measurement was received in the time interval and whether the at least one step was detected in the time interval. The method further includes determining a location of an object using the tracking filter state machine based on the selected state.

Abstract: This application provides a radar data processing method, a terminal device, and a computer-readable storage medium. The method includes: obtaining radar data collected by a receiving area array; in response to the radar data being saturated, performing data fusion processing based on a floodlight distance value to obtain a fusion result; determining a distance value of a target object based on the fusion result; and correcting the distance value of the target object based on a distance between a flooding unit and the target object and a distance between a receiving unit and the target object.