Abstract: An aspect relates to an integrated circuit (IC), including: a data path; a logic gate including a first input coupled to the data path, and a second input configured to receive a second input configured to receive a test data register (TDR) signal; and a first flip-flop including a data input coupled to an output of the logic gate. Another aspect relates to integrated circuit (IC), including: a first logic gate including a first input configured to receive a test data register (TDR) signal; a first flip-flop including a data input (D) coupled to an output of the first logic gate, and a data output (Q) coupled to a second input of the first logic gate; a first data path; and a second logic gate including a first input coupled to the data output of the first flip-flop and a second input coupled to the first data path.

Abstract: A system and method for detecting stator inter-turn fault in induction machines includes receiving a time series data of a stator current using a plurality of current sensors connected to a stator of the induction machine, determining first and second signature time series data of stator current using fundamental components and harmonic components of the stator current, determining first and second scaled signatures using an Unbalance Factor, determining a discrimination factor, and detecting a stator inter-turn fault when the discrimination factor is greater than a predetermined stator inter-turn fault threshold value.

Abstract: A monitoring method includes ascertaining from a temporal operating variable curve of operating variables of a battery an operating feature point characterizing a battery state and/or an operating history in a time period between a most recent and a second most recent change point time in the curve, providing a trace graph model comprising nodes with respective characteristic operating feature points connected via directed transitions with respective transition probabilities. One node is an anomaly node associated with an operating feature point corresponding to a particular fault of the battery. The ascertained operating feature point is assigned to one of the nodes as a monitoring node. An overall probability of occurrence of a fault is ascertained as a sum of all path probabilities from the monitoring node to the anomaly node. The path probability is a product of the respective transition probabilities along the nodes of the respective path.

Abstract: A method for determining a derated power limit of a battery, the method comprising: estimating a power limit of the battery; acquiring a plurality of inputs from the battery; determining a derating factor for the power limit by applying a fuzzy logic to the plurality of inputs; and determining the derated power limit by multiplying the derating factor to the power limit.

Abstract: An apparatus for diagnosing a battery according to an embodiment of the present disclosure includes a storage unit configured to store bank information about voltage and capacity of each of a plurality of battery banks included in a battery module; and a control unit configured to generate a differential profile for each of the plurality of battery banks based on the bank information, determine a target peak in each of the generated plurality of differential profiles, and diagnose the state of the corresponding battery bank based on the determined target peak.

Abstract: A method for determining a current sensor offset of a current sensor (47) in a device battery (41) of a technical device (4). In one example, the method includes measuring the battery current using the current sensor (47); providing (S1) a temporal profile of the battery current; recording (S2) a charge balance of the electrical charge amount flowing into the device battery (41) and out of the device battery (41) over time depending on the temporal profile of the battery current; creating (S2) or adjusting a charge balance model depending on a time-accumulated charge amount; and determining the current sensor offset depending on a local slope of the charge balance model at a specified time.

Abstract: Techniques for optimizing battery usage in one or more wireless display devices are provided. In one technique, a current charge of each insertable battery in a wireless display device is identified. A current charge of each internal battery in the wireless display device is identified. Based on the current charges, it is determined whether power (or charge) from an insertable battery should be transferred to one of the internal batteries. In another technique, one or more first batteries in a display device are determined to be in a blocked state and one or more second batteries in the display device are determined to be unblocked state. Based on these determinations, the one or more second batteries are used before the one or more first batteries or power from the one or more second batteries is transferred electrical power to at least one of the one or more first batteries.

Abstract: A main object of the present disclosure is to provide a battery system capable of avoiding an over charge with a simple sensor element.

Abstract: A method for estimating a battery state of charge, SoC, of a battery comprising a plurality of battery cells, the method comprising the steps of: determining a battery cell SoC for each of the plurality of battery cells; and determining the battery SoC using a weighted sum of the plurality of battery cell SoC, wherein the weight corresponding to each battery cell SoC is determined based on at least a temperature of the battery cell and a SoC of the battery cell.

Abstract: The present invention relates to a maturation process for at least one electric battery cell 32. The maturation process comprises charging the at least one electric battery cell 32 and subjecting the at least one electric battery cell to a maturation period of at least one day wherein no electrical load other than a measurement apparatus 30 is connected to the at least one electric battery cell. The maturation process also comprises taking at least one measurement of the open circuit voltage of the at least one electric battery cell 32 with the measurement apparatus 30 between the start and the end of the maturation period. The maturation process further comprises determining the integrity of the at least one electric battery cell in dependence on the at least one measurement.

Abstract: Impedance testing system and methods are disclosed. A method may include applying a excitation signal to a device under a load condition and capturing a time record of an electrical signal from the device. The method may also include adjusting the time record based on an estimated response to the load condition and estimating an impedance of the device based on the adjusted time record.

Abstract: A method and system for estimating state of health (SOH) of a battery configured for providing electrical power to a motor for driving a vehicle. The method and system configured for measuring an enhanced SOH for the battery according to an enhanced SOH process. The enhanced SOH process including maximizing a discharge depth of the battery to maximize accuracy of the enhanced SOH measurement.

Abstract: In some implementations, a controller may provide first instructions to a plurality of measurement devices, wherein the plurality of measurement devices are configured to obtain measurements from a plurality of battery modules of a battery pack. The controller may receive one or more first responses from one or more first measurement devices of the plurality of measurement devices based on providing the first instructions, wherein the one or more first responses include first unique identifier information identifying one or more first unique identifiers associated with the one or more first measurement devices. The controller may determine, based on the one or more first unique identifiers, whether the plurality of battery modules are improperly assembled.

Abstract: A resistor ladder comprising identical resistors is disposed electrically in parallel with a multicell battery to calibrate voltage-controlled oscillators (VOCs) or analog-to-digital convertors (ADCs) for voltage balancing the battery cells in the multicell battery. Switches in a first state provide the voltage across each resistor as inputs to the VCOs or ADCs. The number of oscillations of the output signal of each VCO or ADC over a predetermined time period are compared to determine an offset error. Switches in a second state provide the voltage across each battery cell as inputs to the VCOs or ADCs. The battery cells with a higher relative voltage can be discharged until they are balanced. Some aspects describe temperature-adjusted and interpolated determinations of electrical quantities in the cells such as voltage and/or current.

Abstract: A method for monitoring an event in a power converter includes using record data after starting the power converter, wherein the record data do not indicate an error for a predetermined period of time after the power converter is started. Messages are assigned to error sources, and a degree of probability is calculated for an assigning process.

Abstract: A testing circuit for testing a universal serial bus (USB) of an electronic device includes a controller, a first switch, a pull-down resistor, a gating pull-up resistor, and a second switch. The controller provides a control signal according to a power receiving condition of the electronic device. A control terminal of the first switch is coupled to the controller. The pull-down resistor is coupled between a configuration channel pin of the USB and a first terminal of the first switch. The gating pull-up resistor is coupled between the configuration channel pin and the control terminal of the first switch. A control terminal of the second switch is coupled to the controller. A first terminal of the second switch is coupled to a second terminal of the first switch and a ground pin of the USB. A second terminal of the second switch is coupled to a reference low voltage.

Abstract: Systems, methods, and apparatuses for a self-locating compass for use in navigation are disclosed. The self-locating compass is operable to provide position and/or velocity without information from a global positioning system (GPS) device. The self-locating compass includes a direction finder and a Lorentz force detector. The method includes determining orientation with respect to Earth's magnetic field, measuring a Lorentz force proportional to rate of change of location with respect to the field, determining a change in location, and updating location.

Abstract: A detection device for a magnetic sensor for detecting a magnetic field by means of a crystal body having at least one defect comprises a light source for exciting the defect; an excitation unit for producing a first excitation signal having a first specifiable frequency and a second excitation signal having a second specifiable frequency; a detector of a magnetic-field-dependent fluorescence signal of the crystal body; and an evaluation unit designed to determine the first excitation frequency and the second excitation frequency of the first and second excitation signals on the basis of the fluorescence signal such that the fluorescence signal as a function of the frequency has a minimum at the first excitation frequency and/or at the second excitation frequency Also disclosed is a magnetic sensor, a sensor device, and a method for detecting a magnetic field.

Abstract: A magnetic field sensor head detects a magnetic field occurring when a current flows through a conductor, and has an optical fiber having a magnetic film arranged on the end surface and a reflective film arranged on the magnetic film; and a magnetic material arranged in the form of a ring around a conductor and containing the magnetic film, wherein the magnetic material has a first taper portion formed so that a cross-sectional area perpendicular to the orientation of the magnetic flux becomes smaller as approaching the magnetic film in order to concentrate a magnetic flux occurring when a current flows through a conductor on an area in which the magnetic film is arranged.

Abstract: A magnetic field sensor includes a first sensor bridge circuit including a first plurality of magnetic field sensor elements and a second plurality of magnetic field sensor elements, wherein the first plurality of magnetic field sensor elements are positioned symmetrical to the second plurality of magnetic field sensor elements across a center of symmetry, wherein the first and the second pluralities of magnetic field sensor elements are separated by a first sensor pitch; and a second sensor bridge circuit including a third plurality of magnetic field sensor elements and a fourth plurality of magnetic field sensor elements, wherein the third plurality of magnetic field sensor elements are positioned symmetrical to the fourth plurality of magnetic field sensor elements across the center of symmetry, wherein the third and the fourth pluralities of magnetic field sensor elements are separated by a second sensor pitch that is equal to the first sensor pitch.

Abstract: A magnetic field measurement device includes: an excitation coil that applies an excitation AC magnetic field to an object to be measured including a magnetic material to make a magnetization change of the magnetic material exhibit linear response; a detection coil that detects a primary detection magnetic field caused due to the magnetization change of the magnetic material to generate a primary detection signal; a magnetic field generation coil that generates a secondary detection magnetic field based on the primary detection signal; and a magnetic sensor that detects the secondary detection magnetic field to generate a secondary detection signal including a non-sine wave component. With this configuration, it is possible to obtain the secondary detection signal including a non-sine wave component without making the magnetization change of the magnetic material exhibit nonlinear response, allowing reduction in the current value and frequency of a current flowing in the excitation coil.

Abstract: A magnetic sensor includes at least one bias magnet, a first half-bridge circuit, a second half-bridge circuit, and a base member. The first half-bridge circuit includes a pair of first magnetoresistive effect elements to one of which a bias magnetic field aligned with a positive direction of an X-axis is applied and to the other of which a bias magnetic field aligned with a negative direction of the X-axis is applied. The second half-bridge circuit includes a pair of second magnetoresistive effect elements to one of which a bias magnetic field aligned with a positive direction of a Y-axis is applied and to the other of which a bias magnetic field aligned with a negative direction of the Y-axis is applied.

Abstract: The invention relates to a magnetic resonance coil device comprising a flexible array (100) with multiple magnetic resonance receive coils (440). According to the invention, a magnetic resonance coil device for a magnetic resonance system is provided, comprising an array (100) with multiple magnetic resonance receive coils (400) which are configured for receiving a magnetic resonance radiofrequency signal, and two outer layers (200, 201), wherein the magnetic resonance receive coils (400) are arranged between the outer layers (200, 201) in such a way that at least some of the magnetic resonance receive coils (400) each partly overlap with at least one other neighboring magnetic resonance receive coil (400) so that respective overlapping regions between two respective neighboring magnetic resonance receive coils (400) are formed, wherein within at least some of these overlapping regions at least one spacer (300) is arranged, respectively, and wherein at least one of the outer layers is flexible.

Abstract: An MRI system including a main magnet defining a volume, an imaging region disposed within the volume. The main magnet is configured to produce a uniform main magnetic field within the volume, wherein the uniform magnetic field is oriented along a patient axis. The system includes a gradient magnetic coil assembly disposed within the volume and configured to generate a spatially varying magnetic field across the imaging region. The gradient magnetic coil assembly includes a first coil configured to generate a magnetic field in a first axis, a second coil configured to generate a magnetic field in a second axis, and a third coil configured to generate a magnetic field in the patient axis. The system also includes a passive gradient shield disposed between the main magnet and primary gradient magnetic coil assembly, the passive gradient shield can include a continuous cylindrical layer of high permeability, low electrical conductivity material.

Abstract: The disclosure relates to a detector unit comprising a radio frequency antenna unit and a gradient coil unit surrounding the radio frequency antenna unit concentrically, each embodied as hollow cylinders surrounding a cylinder axis in the longitudinal direction. The detector unit comprises at least four shim units, which are embodied as oblong shapes and are each arranged in parallel to the cylinder axis at various positions in the circumferential direction on a first inner surface, with said first inner surface corresponding to the side of the gradient coil unit facing towards the cylinder axis, and forming raised areas in the direction of the cylinder axis . The detector unit comprises a fixing unit embodied for fixing the at least four shim units to the gradient coil unit, and an RF screen, which is arranged at least partly between the radio frequency antenna unit and the gradient coil unit.

Abstract: A calibration circuit may include a calibration signal generator configured to receive an oscillator signal provided by an oscillator and generate a calibration signal based on the oscillator signal. The calibration signal may be generated to have a predetermined amplitude. The calibration circuit may include a calibration peak detector configured to detect a peak amplitude of the calibration signal. The calibration circuit may include a logic circuit configured to calibrate a peak detector connected to the oscillator based at least in part on the peak amplitude of the calibration signal.

Abstract: One example includes a passive radar receiver system including an RF receiver front-end to receive a wireless source signal and a reflected signal. An antenna switch of the front-end switches a first antenna to a receiver chain during a first time to generate first radar signal data based on a combined wireless signal comprising wireless source signal and the reflected signal, and switches a second antenna to the receiver chain during a second time to generate second radar signal data based on the combined wireless signal. A signal processor generates source signal data associated with the wireless source signal based on the first and second radar signal data and generates reflected signal data associated with the reflected signal based on the first and second radar signal data, and generates target radar data associated with a target based on the source and reflected radar signal data.

Abstract: This application provides a method for directing a user and an electronic device. A first electronic device exchanges an ultrasonic signal with a second electronic device, and the first electronic device outputs a directing signal according to the ultrasonic signal and angle information between the two devices, to guide user to search for the second electronic device. The first electronic device and the second electronic device do not need to be installed with a UWB chip, thereby reducing costs.

Abstract: A method of determining a respective location of each of a set of one or more mobile devices (3) of a network of devices (3, 4). The method includes receiving data comprising a set of values representative of distances between respective pairs of devices (3, 4) of the network of devices (3, 4), wherein the values representative of distances are determined from wireless signals transmitted f between the devices (3, 4). The values representative of distances are processed to determine a set of coefficients for a system of linear equations, and the system of linear equations is solved to determine two-dimensional or three-dimensional coordinates representative of the location of each of the set of one or more mobile devices (3) in a two-dimensional plane or a three-dimensional space.

Abstract: A method involves receiving a ranging signal. A filtered ranging signal is generated using the ranging signal and used to determine a first estimated time of arrival (TOA) of the ranging signal. Multiple first time delay hypotheses of an actual TOA of the ranging signal are determined. A correlator vector is generated using the filtered ranging signal, a filtered local replica of the ranging signal, and the first time delay hypotheses. Multiple code phase discriminator vectors corresponding to second time delay hypotheses are generated, each code phase discriminator vector being based on estimated signal processing, filtering, and noise characteristics of the ranging signal for a respective second time delay hypothesis. A second estimated TOA of the ranging signal is generated using the correlator vector and the code phase discriminator vectors.

Abstract: A method of reconfiguring a radiofrequency-based sensing system comprising at least two nodes, wherein the at least two nodes are arranged for transmitting and/or receiving a radiofrequency signal for presence and/or location detection and for performing network communication in an environment; wherein the method comprises the steps of: obtaining a signal indicative of a level of accumulation of radiofrequency transmission affecting elements in proximity of at least one of the at least two nodes; determining whether the level of accumulation exceeds a threshold; and wherein if the level of accumulation exceeds the threshold; determining, based on the obtained signal, which one of the at least two nodes to act as a transmitter to transmit the radiofrequency signal for presence and/or location detection and which one of the at least two nodes to act as a receiver to receive the transmitted radiofrequency signal for presence and/or location detection, and instructing the determined one of the at least two nodes

Abstract: A wireless communication method and a device, which can establish a measurement configuration. The method comprises: a first device receiving at least one measurement configuration identifier, which is sent by a second device, wherein each measurement configuration identifier corresponds to a group of operation parameters for perception measurement.

Abstract: A method for evaluating a distance between at least a first antenna unit and a second antenna unit by two-way transmission of at least two signals having different circular polarizations between the antenna units. Phase information is determined and used to determine at least a first phase sum and a second phase sum, where the phase sums are further utilized in determination of at least one distance indicator that is indicative of the distance between the first antenna unit and the second antenna unit.

Abstract: In an embodiment, a system includes: an analog-to-digital converter (ADC); a transmitter path; a receiver path including a first amplifier including: an output coupled to the ADC, and a first high-pass filter; and a controller coupled to the transmitter path and to the receiver path, where the controller is configured to: cause a corner frequency of the first high-pass filter to increase from a first value to a second value, simultaneously or after causing the corner frequency of the first high-pass filter to increase, cause the transmitter path to be enabled, and after a first signal begins transmission in the enabled transmitter path, and during transmission of the first signal in the enabled transmitter path, cause the corner frequency of the first high-pass filter to decrease from the second value to the first value.

Abstract: A method of operating a radar system includes: receiving a range-angle image (RAI) and a range-Doppler image (RDI) that are based on raw data from a radar sensor of the radar system; choosing, from a list of potential tasks, a task for the radar system to perform based at least on the RAI and the RDI; and modifying one or more parameters of the radar system in accordance with the chosen task for the radar system.

Abstract: A method for calibrating a transmitter of a plurality of transmitters of a radar system is provided. The method includes setting the radar transmitter to be calibrated to a first Doppler Division Multiplexing (DDM) pattern and associating each of the other transmitters in the plurality with a respective second DDM pattern. A target is detected by performing radar detection with the plurality of transmitters, wherein the transmitter is operated with the first DDM pattern and each of the other transmitters is operated with its associated second DDM pattern, extracting Doppler Fourier transform coefficients for a Doppler spectrum peak corresponding to the target and for spurs associated with the peak, applying an inverse discrete Fourier transform to the extracted Doppler Fourier transform coefficients, detecting a phase error of the transmitter using a result of the inverse discrete Fourier transform and calibrating the transmitter according to the detected phase error.

Abstract: According to one embodiment, a radar device includes an oscillator configured to generate a reference signal, a first unit group, and a second unit group. The first unit group includes first and second units configured to transmit/receive based on a reference signal. The second unit group includes third and fourth units configured to transmit/receive based on the reference signal. The first and third units are connected to the oscillator via first and second signal lines, respectively. The second and fourth units are connected to the first and third units via third and fourth signal lines, respectively.

Abstract: A reflectometric system and method for the measurement of deformations and/or vibrations of an object/structure includes a radar device for transmitting a radar signal to at least one target associated with the object/structure, the target being a vibrating target with a mechanical vibration mechanism equipped with an electric motor group to generate a self-induced motion with respect to the object/structure. The at least one vibrating target vibrating with its own frequency of induced vibration, modulating the radar signal at least on the basis of its own frequency of induced vibration to generate a return signal received by the radar device as part of a complex signal. The complex signal is processed to determine an identification signal of each vibrating target using its own frequency of induced vibration; the measurement of deformations and/or vibrations determined for each vibrating target on the basis of a phase value extracted from the identification signal.

Abstract: A method that includes obtaining reflective radar signals regarding a scene monitored by a radar sensor system having an antenna array that is characterized by effecting a reflection-ghost offset in one or more domains, determining a reflective-intensity (RI) spectrum in three domains based on the reflective radar signals, producing a filtered RI spectrum by applying a trained convolutional neural network (CNN) to the RI spectrum by, at least in part, filtering the RI spectrum using one or more CNN kernels that incorporate the reflection-ghost offset; and detecting objects in the monitored scene based, at least in part, on the filtered RI spectrum.

Abstract: An external environment recognition apparatus including: an in-vehicle detector configured to scan and emit an electromagnetic wave in a first direction and as a second direction to detect an external environment situation around a subject vehicle; and a microprocessor configured to acquire road surface information based on a detection data of the in-vehicle detector. The in-vehicle detector acquires a three-dimensional point cloud data frame by frame, and the microprocessor is configured to perform: recognizing a surface of the road and a three-dimensional object on the road for each frame as the road surface information based on the three-dimensional point cloud data, and determining an interval of detection points of the three-dimensional point cloud data of a next frame as a scanning angular resolution of the electromagnetic wave based on a size of a predetermined object and a distance from the subject vehicle to the object.

Abstract: A method for recognizing a blockage of a lidar system of a vehicle. The lidar system scans an environment with several laser receiver systems in a shared field of vision. An object point cloud is identified which is created by reflection of laser beams of the laser receiver systems on a surface of an object located in the shared field of vision. It is determined whether points of the identified object point cloud originate from the laser beams of all of the laser receiver systems of the lidar system and substantially have the same intensities. It is concluded that the lidar system is blocked if the points do not originate from the laser beams of all of the laser receiver systems, or if the points originate from the laser beams of all of the laser receiver systems, but do not substantially have the same intensities.

Abstract: A method of operating a LIDAR system includes determining, from a first signal in a frequency domain, signal intensities for a first plurality of frequencies around a first peak frequency, determining, from a second signal in the frequency domain, signal intensities for a second plurality of frequencies around a second peak frequency, and performing a convolution of the signal intensities for the first plurality of frequencies and the signal intensities for the second plurality of frequencies. The method further includes performing a correction of the first peak frequency based on a third peak frequency identified from the convolution to obtain a corrected first peak frequency and determining range and velocity information associated with a target based on the corrected first peak frequency.

Abstract: A vehicle mounting structure for a ranging device includes a ranging device, a bracket, and a shielding plate. The ranging device measures the distance to an object by emitting transmitted waves and detecting reflected waves from the object to which the transmitted wave has been emitted. The bracket attaches the ranging device in a mounting space formed on an outer surface of a vehicle and capable of accommodating the ranging device. The shielding plate covers the mounting space from the outer-surface side of the vehicle with the ranging device attached in the mounting space. The mounting space is provided on at least one of a front surface of the vehicle, a side surface of the vehicle, or a rear surface of the vehicle. The shielding plate forms an opening for introducing into the mounting space traveling wind occurring along with travel of the vehicle.

Abstract: There is provided a light source device capable of suppressing emission of light from a light source without passing through an optical element. The light source device according to the present technology includes a light source, an optical element, and a holding unit that holds the light source and the optical element, in which the holding unit includes a package that accommodates the light source and has an opening on an optical path of light from the light source, the package being such that the optical element is attached on the package to cover the opening, and a cover that covers the optical element and the package and allows transmission of light emitted from the light source and has passed through the optical element. The light source device according to the present technology makes it possible to provide a light source device capable of suppressing the emission of the light from the light source without passing through the optical element.

Abstract: An image-capturing device includes: a casing elongated in one direction; a light receiver on one end of the casing in said one direction, a support on another end of the casing in said one direction; and a light emitter between the light receiver and the support in said one direction of the casing, to emit patterned light to a target object. The light receiver receives the patterned light reflected from the target object.

Abstract: A method includes counting a first set of photons having a time-of-flight that falls within a first time range and being detected during a first time period, determining a second time range based on the first set of photons, the second time range being smaller than the first time range, counting a second set of photons having a time-of-flight that fall within the second time range and being detected during a second time period, and determining a third time range based on the second set of photons, the third time range being smaller than the second time range.

Abstract: Detecting a multi-path interference component in a time-of-flight (ToF) camera may be performed by generating a confidence map in which a distortion area attributable to a multi-path interference component included in a reflection modulation signals is specified, where the reflection modulation signals is generated when two modulation signals emitted from a light source to a subject return to the ToF camera after being reflected by the subject. Correcting the multi-path interference component corrects distortion attributable to a multi-path interference component, which may include correcting only the distortion area specified in the confidence map.

Abstract: A light distance measurement device detects a distance to a target. The light distance measurement device includes an irradiation unit, photodetectors, a level adjustment unit, a peak detection unit, a pulse information acquisition unit, and a distance calculation unit. The irradiation unit irradiates sensing light in a detection target direction. The photodetectors is arranged in a matrix and responds to the sensing light. The level adjustment unit changes an irradiation intensity of the sensing light or detection sensitivity of the photodetectors. The peak detection unit detects a received light pulse and a peak of the received light pulse. The pulse information acquisition unit acquires, as pulse information, a data set indicating a predetermined feature amount related to the received light pulse. The pulse information includes normal and suppression pulse information. The distance calculation unit calculates a distance value to the target based on the normal and suppression pulse information.

Abstract: A light detection and ranging (LIDAR) system includes optical sources to emit a continuous-wave (CW) optical beam and a frequency-modulated CW (FMCW) optical beam, an optical component to split a target return signal into a CW return signal and a FMCW return signal, and at least one optical detector to detect a first beat frequency from a combination of a CW local oscillator (LO) signal and the CW return signal, and a second beat frequency from a combination of a FMCW LO signal and the FMCW return signal, wherein the first beat frequency is associated with a velocity of a target and the second beat frequency is associated with a range of the target.

Abstract: A time of flight, ToF, camera system for measuring depth images of an environment is disclosed, wherein the ToF camera system includes an illumination unit comprising a light source for emitting modulated light signals for illuminating objects of the environment and a sensor unit comprising an image sensor for acquiring light signals reflected from the objects. A processing unit for generating the depth images based on the acquired reflected light signals and a correction unit for correcting temperature-related measurement errors of the generated depth images is included.