Abstract: An ion implanter including a beam generation device that generates an ion beam, based on an implantation recipe, a plurality of measurement devices that measure beam currents of the ion beam, and a control device. The control device acquires a data set including the beam currents and an implantation parameter in the implantation recipe, and evaluates measurement validity of the beam currents of the ion beam by using the model. The implantation parameter may be one of ion species, beam energy, a beam current, a beam size, a wafer tilt angle, a wafer twist angle and an average dose. The model may be built based on a plurality of past data sets acquired during a plurality of implantation process based on the implantation recipe.

Abstract: An information display device includes a component extraction unit, a sorting unit, and a noise component selection unit. The component extraction unit is configured to perform a principal component analysis or an independent component analysis to extract desired components from a plurality of signal waveforms based on detected biological signals. The sorting unit is configured to sort a plurality of extracted results obtained by the component extraction unit in descending order of periodicity and display the sorted results. The noise component selection unit is configured to receive selection of one extracted result as a noise component from the extracted results obtained by the component extraction unit.

Abstract: A memory sub-system includes a power management integrated circuit (PMIC) compatible with operation at an uppermost PMIC supply voltage that is lower than a primary supply voltage of the memory sub-system. The PMIC is configured to output multiple voltages for operation of the memory sub-system based on a PMIC supply voltage. The memory sub-system further includes a capacitive voltage modifier (CVM) coupled to the PMIC. The CVM is configured to receive the primary supply voltage of the memory sub-system as an input and provide a first modified primary supply voltage (MPSV) to the PMIC as the PMIC supply voltage, where the first MPSV is not higher than the uppermost PMIC supply voltage.

Abstract: Differing from the fact that the amount of register units and adder units arranged in conventional moving average filter must be increased for processing more number of reference input signals, the present invention particularly discloses a moving average low-pass filtering device. The moving average low-pass filtering device comprises a register unit and a filtering and processing unit, and is able to use identical circuit architecture to successfully treat reference input signals with a filtering process even if the number of the reference input signals is alternatively increased. Moreover, after finishing a verification experiment by a simulator, simulation results have proved that, this novel moving average low-pass filtering device still can use identical circuit architecture to complete the filtering process under nearly the same calculation efficiency even though the number of the reference input signals is alternatively increased.

Abstract: A substrate processing apparatus is provided with: a detection unit that detects a factor for which interlock is applied to one or more of a plurality of modules and outputs a detection signal; interlocking management unit that, based on the detection signal output from the detecting units, applies interlock to the module to be interlocked if the factor has been occurred; and an alarm management unit that determines parent-child relationships between a parent alarm indicating that the factor for which interlock is applied has been detected, and child alarms each indicating that interlock has been applied to each module, and causes a display unit to display in a grouped manner the parent alarm and the child alarm or alarms having the parent-child relationship.

Abstract: A mass spectrometer of the type useful in mass cytometry includes an ion detector. A digitizing system for converting analog signals from the ion detector includes two analog-to-digital converters. The analog-to-digital converters are configured to provide an increased dynamic range for a targeted period while limiting the amount of data generated.

Abstract: Aspects of the disclosure relate generally to detecting road weather conditions. Vehicle sensors including a laser, precipitation sensors, and/or camera may be used to detect information such as the brightness of the road, variations in the brightness of the road, brightness of the world, current precipitation, as well as the detected height of the road. Information received from other sources such as networked based weather information (forecasts, radar, precipitation reports, etc.) may also be considered. The combination of the received and detected information may be used to estimate the probability of precipitation such as water, snow or ice in the roadway. This information may then be used to maneuver an autonomous vehicle (for steering, accelerating, or braking) or identify dangerous situations.

Abstract: A spectral data processing apparatus includes an analyzer configured to perform principal component analysis of spectral data acquired for each of a plurality of regions of a sample, wherein the analyzer obtains an eigenvector by performing the principal component analysis of first spectral data of a first region out of the plurality of regions, and performs the principal component analysis of second spectral data of a second region different from the first region out of the plurality of regions using the obtained eigenvector.

Abstract: A computation apparatus that calculates subject information by using subject data, includes a calculation unit that calculates spatial distributions of a first-order phase value and a first-order measurement target value by using the subject data, a calculation unit that calculates an error correction function including the first-order phase value as a variable by using information of the spatial distribution of the first-order measurement target value and the spatial distribution of the first-order phase value, and a calculation unit that calculates information of a spatial distribution of a second-order measurement target value corresponding to a spatial distribution obtained by correcting the spatial distribution of the first-order measurement target value by using the error correction function, the information of the spatial distribution of the first-order phase value, and the information of the spatial distribution of the first-order measurement target value.

Abstract: Optical metrology is used to calibrate the plane-of-incidence (POI) azimuth error by determining and correcting an azimuth angle offset. The azimuth angle offset may be determined by measuring at least a partial Mueller matrix from a calibration grating on a sample held on a stage for a plurality of POI azimuth angles. An axis of symmetry is determined for a curve describing a value of a Mueller matrix element with respect to POI azimuth angle, for each desired wavelength and each desired Mueller matrix element. The axis of symmetry may then be used to determine the azimuth angle offset, e.g., by determining a mean, median or average of all, or a filtered subset, of the axes of symmetry. If desired, an axis of symmetry may be determined for data sets other than Mueller matrix elements, such as Fourier coefficients of measured signals.

Abstract: The biological signal averaging processing device includes a waveform input unit for continuously obtaining a biological signal in which analogous waves appear repeatedly, a summing-averaging processing unit which sums the biological signal obtained from the waveform input unit each time a predetermined time period lapses after a desired start time point to obtain an average wave, a noise level detection part which detects a noise level of random noise contained in the biological signal obtained from the waveform input unit each time the predetermined time period lapses after the desired start time point, a display part for displaying information, and a display control part for displaying the information on the screen of the display part. The display control part displays the noise levels detected by the noise level detection part on the screen of the display part in a chronological manner in association with the respective predetermined time periods.

Abstract: A robot (1) having a workpiece mass measurement function for measuring the mass of a workpiece that is held, includes a force measurement unit (5) that measures the force that is applied to the tip part (2) of the mechanism part of the robot (1), and a mass estimation unit (11) that estimates the mass of the workpiece that is held by the robot (1), based on information about the force acquired by the force measurement unit (5) while the robot (1) is moving.

Abstract: A measurement method of the present invention is a measurement method which measures a target divided into a plurality of partial regions to measure a whole shape of the target by stitching the plurality of partial regions. The measurement method comprises Steps S501 to S511 which measures a plurality of partial regions, Step S102 which determines an error in a partial region that is a reference, Step S105 which calculates each of errors in the plurality of partial regions, and Step S107 which performs a correction depending on each of the errors to stitch the plurality of partial regions. Steps S102 to S107 are repeatedly performed by changing the partial region that is the reference (S110).

Abstract: A frame averaging circuit adapted for a color blood flow frame in a medical ultrasound imaging system. The frame averaging circuit comprises two sections, i.e., a recursive calculation section and a non-recursive section. The recursive calculation section employs an IIR filter in combination with a look-up table, and is adapted for dealing with the cases where no change occurs to the blood flow velocity direction. The non-recursive section compares the blood flow velocity, the energy and the energy prior to wall filtering of the color blood flow echo signal to various threshold values. Different from the recursive calculation section, the non-recursive section is employed when a change occurs to the blood flow velocity direction.

Abstract: A method for accurately acquiring multiple analog input signals that are converted using a plurality of A/D converters into corresponding digital single measured values. A first measurement averaging cycle having a predetermined total number of measuring intervals is predetermined by a higher-order control unit. First and second input signals are acquired by first and second A/D converters in a first and second number of measuring intervals, the second number being smaller than the first number. The first and second input signals are averaged to form first and second measured values, respectively. The first input signal is acquired by the second A/D converter in a third number of measuring intervals as at least one further single measured value.

Abstract: Embodiments of adaptively performing clutter filtering are disclosed. In one embodiment, by way of non-limiting example, an ultrasound system comprises: an ultrasound data acquisition unit configured to transmit and receive ultrasound signals to and from a target object to output a plurality of ultrasound data corresponding to each pixel of a color Doppler mode image; and a processing unit in communication with the ultrasound data acquisition unit and being configured to calculate a power difference value corresponding to each of the pixels based on the plurality of ultrasound data, determine whether the power difference value is equal to or larger than a first threshold value, and if the power difference value is equal to or larger than the first threshold value, then perform first clutter filtering upon the plurality of ultrasound data, or if the power difference value is less than the first threshold value, then perform second clutter filtering upon the plurality of ultrasound data.

Abstract: Mechanical oscillators employ the use of resonance parameters, frequency and the quality factor Q, for the measurement of corrosion or deposition. The ability of a mechanical oscillator to measure small amounts of metal loss or deposition is not only dependent upon the mechanical design but is limited by the precision in determining the resonance frequency and Q. Methods for measuring these resonance parameters with a high precision in the presence of noise are provided. The increased degree of precision improves the utility of these devices as sensitive probes for corrosion and deposition (fouling) measurement. The increased degree of precision is enabled in part by employing curve fitting consistent with modeling the mechanical oscillator as a simple harmonic oscillator. This curve fitting procedure, combined with averaging and utilizing signal processing parameters to mitigate noise effects, adds precision in measuring resonance parameters.

Abstract: In the method of these teachings for detection of physical phenomena from or analysis of physical signals, an improved Empirical Mode Decomposition method decomposes physical signals representative of a physical phenomenon into components.

Abstract: A measurement system uses a plurality of transducers that may differ from each other in at least one respect, such as having different operating principles or being made by different manufacturers. Respective measurement values obtained from the transducers are applied to a processor which provides a measured value based on the measurement values from a plurality of the transducers. The processor also provides information about the calibration drift of each of the transducers based upon a comparison between the measurement value obtained from the transducer to a value obtained from a combination of respective measurement values obtained from a plurality of the transducers. The calibration drift information provides an objective evaluation about the calibration condition of each of the transducers. When a transducer is determined to be outside of its calibration tolerance, a calibration needed alert occurs.

Abstract: A method for analyzing the output of a rotary sensor, such as that coupled to a vehicle wheel assembly. In one embodiment, the method detects periodic irregularities in the output of an incremental rotary sensor and uses those irregularities with a reference signal and a pattern comparison technique to determine the absolute angular position of the sensor.

Abstract: A computer-implemented system and method for bounding accuracy on a forecast of photovoltaic fleet power generation is provided. Measured irradiance observations for a plurality of locations are retrieved. The measured observations include a time series recorded at successive time periods. Forecast irradiance observations are retrieved. Error between the forecast and the measured observations is identified. A mean and standard deviation of the error is determined and combined into a fleet mean and fleet standard deviation. Sky clearness indexes are generated as a ratio of each measured observation and clear sky irradiance. A time series of the sky clearness indexes is formed. Fleet irradiance statistics are determined through statistical evaluation of the sky clearness indexes time series. A time series of power statistics is generated as a function of the fleet irradiance statistics and photovoltaic fleet power rating. A statistical confidence is associated with each power statistic in the time series.

Abstract: An apparatus and a method for detecting a nonlinearity in a cable plant and for determining cable length to a source of the nonlinearity are disclosed. Upstream signal peaks are detected by averaging upstream signal waveforms. The upstream signal peaks are generated at the source of the nonlinearity from naturally occurring downstream signal peaks propagating in the cable plant. The downstream signal peaks occur due to constructive superposition of the downstream channel signals. Acquisition of the upstream signal waveforms is triggered by the downstream signal peaks. The cable length to the source of nonlinearity is determined from a time delay between the downstream signal peaks and the upstream signal peaks.

Abstract: An efficient method of boxing fuel injectors with a good yield where a predetermined quality is secured in a predetermined number of fuel injectors forming a set for one engine, that is, a method of boxing fuel injectors, a first number of which are scheduled to be mounted in an engine, in a single box in a second number larger than the first number, provided with a step of measuring a characteristic value for the second number of fuel injectors, wherein when the first number of the characteristic values forms a set, the number of combinations of the characteristic values where a total value of this one set's worth of the characteristic values becomes a first management value or less when selecting one set's worth of the characteristic values from the second number of the characteristic values, is defined as the “number of good part combinations”, and the number of possible combinations of one set's worth of the characteristic values is defined as the “number of possible combinations”, the fuel injectors bein

Abstract: A voltage sensor consists of a number of capacitive voltage sensors coupled to test points in an electrical power system. The outputs of the voltage sensors are digitized and processed by a digital processor, which determines a normal value for the monitored AC voltages, and then determines if the monitored AC voltages are acceptable based on variations from the normal value.

Abstract: A hand-held test meter (“HHTM”) for use with an analytical test strip in the determination of an analyte in a bodily fluid sample includes a housing, an electrical signal receiving block, a signal recovery block and a microcontroller block, all of which are disposed in the housing. The electrical signal receiving block is configured to receive an electrical signal from an analytical test strip inserted in the HHTM that has been distorted into a distorted electrical signal. In addition, the signal recovery block and microcontroller block are configured to recover the electrical signal from the distorted electrical signal by generating a recovered electrical signal based on a predetermined recovered electrical signal frequency, a recovered electrical signal amplitude estimated from the distorted electrical signal, a recovered electrical signal offset estimated from distorted electrical signal and a recovered electrical signal phase determined using a least sum squares calculation.

Abstract: The present invention relates to a disk protrusion detection/flatness measurement circuit and a disk glide tester, in which protrusion detection and average value calculation can be performed without switching signal processing circuits of two systems, one for the protrusion detection of a disk and the other for the average value calculation with respect to a track or a sector of the disk. This also makes it possible to reduce the size of the measurement circuit. In the protrusion detection/flatness measurement circuit, a signal from a protrusion detection sensor is amplified and converted from an analog signal to a digital signal. The signal passes through a band-pass filter to obtain a digital signal with a predetermined bandwidth. Then, peak detection and average value calculation processes are applied in parallel to the obtained digital signal. Thus, pass/fail decision of the disk can be made based on the detected peak and average values.

Abstract: A method for analysing blade displacements detected by circumferentially-spaced stationary timing probes associated with a rotating blade assembly, the displacements corresponding to times at which the blades pass the probes.

Abstract: A method for determining an optimum sampling frequency to be performed by a power analyzer includes the following computer-implemented steps: sampling a time domain signal to obtain a sampling signal according to a predetermined sampling frequency; obtaining two reference sampling signals using higher and lower sampling frequencies compared to the predetermined sampling frequency; transforming the sampling signal and the reference sampling signals to frequency domain signals; computing a sum-of-amplitudes for each of the three frequency domain signals; estimating a minimum sum-of-amplitudes value and a corresponding re-sampling frequency; obtaining a new reference sampling signal using the re-sampling frequency; transforming the new reference sampling signal to a frequency domain signal, and computing a sum-of-amplitudes therefor; and re-estimating the minimum sum-of-amplitudes value and the corresponding re-sampling frequency.

Abstract: A signal processing method includes inputting a digital signal, providing a plurality of coefficients; and determining an output. The output is approximately equal to an aggregate of a plurality of linear reference components, and each of the linear reference components is approximately equal to an aggregate of a corresponding set of digital signal samples that is scaled by the plurality of coefficients.

Abstract: A method for identifying erroneous sensor outputs is provided. The method includes obtaining a first plurality of samples from a sensor over a period of time. A mean of the plurality of samples is determined. A first additional sample from the sensor at a time subsequent to times that the first plurality of samples were obtained is also received. A divergence of the first additional sample from the mean is determined. The first additional sample is identified as erroneous when the divergence is greater than a threshold.

Abstract: A computer-implemented system and method for estimating photovoltaic power generation for use in photovoltaic fleet operation is provided. A set of sky clearness indexes is generated as a ratio of each irradiance observation in a set of irradiance observations that has been regularly measured for a plurality of locations, which are each within a geographic region suitable for operation of a photovoltaic fleet, and clear sky irradiance. A time series of the set of the sky clearness indexes is formed for all of the locations within the geographic region. Fleet irradiance statistics for the photovoltaic fleet are generated through statistical evaluation of the time series of the set of the sky clearness indexes. Power statistics for the photovoltaic fleet are built as a function of the fleet irradiance statistics and an overall power rating of the photovoltaic fleet.

Abstract: An apparatus estimates SOH of a battery based on a battery voltage variation pattern. A data storing unit obtains and stores battery voltage, current and temperature data from sensors, at each SOH estimation. A first SOC estimating unit estimates first SOC by current integration using the battery current data. A second SOC estimating unit estimates open-circuit voltage from the voltage variation pattern, and calculates and stores second SOC corresponding to the open-circuit voltage and temperature using correlations between the open-circuit voltage/temperature and SOC. A weighted mean convergence calculating unit calculates and stores convergence value for weighted mean value of ratio of the second SOC variation to the first SOC variation. A SOH estimating unit estimates capacity corresponding to the weighted mean convergence value using correlation between the weighted mean convergence value and the capacity, estimates relative ratio of the estimated capacity to an initial capacity, and stores it as SOH.

Abstract: A computer-implemented system and method for correlating satellite imagery for use in photovoltaic fleet output estimation is provided. Pixels in satellite imagery data of overhead sky clearness is correlated to a bounded area within a geographic region. Each pixel represents collective irradiance that is converted into point clearness indexes for the points within the bounded area relative to clear sky irradiance. The point clearness indexes in the point clearness indexes are averaged for the points within the bounded area into an area clearness index. A variance of the area clearness index is determined in proportion to a physical area covered by each pixel. For each point, a variance of the point clearness index is determined as a ratio of the area clearness index variance and the physical area relative to the point clearness index, regional cloud speed, and a time interval relating to a time resolution of collective irradiance observation.

Abstract: Disclosed is a system and related methodology for providing fast low frequency jitter rejection in the measurement of signals under test. A signal under test may be sampled alternately with a reference signal under similar conditions. The resulting sampled signal blocks may then be processed to subtract the known calibrated value of the reference signal from the average signal under test.

Abstract: Embodiments of the invention relate to generating a noise model for a given environment. According to one embodiment of the invention, sounds occurring within the given environment over a given period are monitored, and signals that each represent an amplitude of the sounds occurring within the given environment during a portion of the given period are generated. Average noise levels associated with the given environment over the given period are determined, and peak noise events occurring within the given environment over the given period are identified. The average noise levels and information indicating the peak noise events are stored or transmitted.

Abstract: This invention describes a means to monitor the deposition of a rugate filter such that the deposited filter will have the specified bandwidth, angular shift properties, and the correct wavelength of the reflectance peak.

Abstract: A preferred estimate of a given parameter is made by processing a set of data points representing estimates of the given parameter, such as the angle of arrival of a target signal. The process includes the steps of: (a) obtaining a set of data points representing estimates of a given parameter; (b) using a computer to process said data points with an unsupervised clustering algorithm to select data points for use in making a preferred estimate of the given parameter; and (c) using the selected data points to make a preferred estimate of the given parameter.

Abstract: A system for measuring signals received by an apparatus. An antenna system in the apparatus may include two or more antennas. A receiver in the apparatus may be configured to measure signal response induced in the antenna system in accordance with a pattern. After the signal response for the antenna system is measured at least once, the pattern may be altered and the signal response for the antenna system may be measured again in accordance with the altered pattern. The signal response in the antenna system measured for the pattern may then be averaged with the signal response in the antenna system measured for the altered pattern, and the average may be utilized as input to, for example, a directional determination process.

Abstract: Time-course data that has been obtained by measuring, in time series, a change in the density of a sample material by a color reaction thereof is input. A regression curve generation unit generates a regression curve that approximates the time-course data. A standard deviation obtainment unit obtains the value of a standard deviation representing the distribution of the approximation error of the regression curve with respect to the time-course data. A standard deviation comparison judgment unit compares the value of the standard deviation and a predetermined threshold value that is stored in a standard deviation storage unit with each other. When the value of the standard deviation is greater than the threshold value, the standard deviation comparison judgment unit judges that a position shift of the sample material with respect to a sample table is present and outputs the result of the judgment.

Abstract: Hourly CO2 concentration, amount of solar radiation, and plant distribution information are calculated through observation from predetermined satellites. A concentration of CO2 absorbed by plant-chlorophyll per each time unit is calculated. By adding up the CO2 concentration on the earth and the concentration of CO2 absorbed by the plant-chlorophyll, a CO2 concentration obtained provided that no plant-chlorophyll exist is calculated for a certain period. Thereafter, a mean concentration of CO2 that is absorbed according to changes in the distribution of plant-chlorophyll is calculated on the basis of a monthly mean solar radiation amount and plant-chlorophyll distribution information. By subtracting the CO2 concentration, which is a mean, from the total CO2 concentration, a CO2 concentration, which is a normal, is calculated.

Abstract: An apparatus estimates SOH of a battery based on a battery voltage variation pattern. A data storing unit obtains and stores battery voltage, current and temperature data from sensors, at each SOH estimation. A first SOC estimating unit estimates first SOC by current integration using the battery current data. A second SOC estimating unit estimates open-circuit voltage from the voltage variation pattern, and calculates and stores second SOC corresponding to the open-circuit voltage and temperature using correlations between the open-circuit voltage/temperature and SOC. A weighted mean convergence calculating unit calculates and stores convergence value for weighted mean value of ratio of the second SOC variation to the first SOC variation. A SOH estimating unit estimates capacity corresponding to the weighted mean convergence value using correlation between the weighted mean convergence value and the capacity, estimates relative ratio of the estimated capacity to an initial capacity, and stores it as SOH.

Abstract: A method and a device for estimating a first value of a signal formed of a series of values corresponding either to the first value or to a second value equal to the opposite of the first value, where the signal can take values other than the first and second values due to noise.

Abstract: A system, method and apparatus for monitoring a processing system is disclosed. The method includes obtaining N parameter-value pairs that include a first parameter value and a second parameter value; obtaining, for each parameter-value pair, the product of the first parameter value and the complex conjugate of the second parameter value to obtain N products defined by a real part and an imaginary part; obtaining, for each parameter-value pair, a product of the second parameter value and the complex conjugate of the second parameter value to obtain N real numbers; calculating an average reflection coefficient by dividing an imaginary number by an average of the N real numbers, the real component of the imaginary number being equal to the average of the real parts of the N products and the imaginary part of the imaginary number being equal to an average of the imaginary parts of the N products.

Abstract: A computer-implemented method of signal processing is provided. The method includes generating one or more masking signals based upon a computed Fourier transform of a received signal. The method further includes determining one or more intrinsic mode functions (IMFs) of the received signal by performing a masking-signal-based empirical mode decomposition (EMD) using the at least one masking signal.

Abstract: An apparatus state detector and its associates are provided to save time and effort for learning combinations of operation states of all apparatuses at home and commit fewer estimation errors even when an unknown apparatus starts operating.

Abstract: The invention relates to a method and a computer programme for detecting the stationary state of a roller bearing, comprising z rolling bodies, where z is a whole number, preferably an even number, to which a sensor arrangement is fixed, delivering a sinusoidal signal, dependent on the rotational position of the bearing on the rotation of the roller bearing. Said sinusoidal signal is sampled, whereupon sampled values are determined. According to the invention, a first average value (MW1) of the sampled values of a first time interval (J1) is determined (S120), whereupon the corresponding average value (MW2, MW3) of other time intervals (J2, J3) is determined (S132).

Abstract: A multi-functional sensor for deriving information on a recording sheet material comprising an impact-applying unit for applying an external mechanical force onto the recording sheet material, a signal-detecting unit for detecting a signal of response of the recording sheet material to the external mechanical force, a signal-processing unit for processing the signal, and a signal-judging unit for deriving a property of the recording sheet material by comparison of a signal from the signal-detecting unit or the signal processing unit with information memorized preliminarily, wherein the signal-processing unit comprises a separation section for separating the signal from the signal-detecting unit into output signals on the properties of the recording sheet material, and a processing section for deriving, by statistical treatment, a correlation equation showing a correlation between the separated output signal and the properties of the recording sheet material.

Abstract: A method of calibrating an individual sensor of a particular sensor type whose output varies non-linearly with at least one measured quantity and at least one operating condition. The first step includes producing a set of calibration curves for each sample sensor of the particular sensor type. The resulting sets of calibration curves are then averaged and the results used to produce a generic calibration surface for the particular sensor type showing its variation. Individual calibration measurements are then taken for a number of different values of the measured quantity at a small number of discrete values. The individual calibration readings are then used to map the generic calibration surface to the individual calibration measurements of the individual sensor.

Abstract: Embodiments provide methods and systems wherein analyte concentration readings taken over a first period of time are collected and processed to determine one or more analyte concentration averages. The methods include collecting samples with a measurement system (e.g., a Blood Glucose Meter) over a first period of time, dividing the first period of time into smaller time increments, and calculating an average analyte concentration based on first sub-averages obtained from each of the smaller time increments. Systems for carrying out the analyte concentration averages are described, as are other aspects.

Abstract: A method and device for monitoring the noise from a sensor and a use of the method in automobiles for determining a frictional value between tyres of a motor vehicle and a road surface, in particular an economical and reliable method for monitoring a sensor noise and a corresponding device for obtaining, amongst other things, system-relevant information may be achieved, wherein an influence on spectral components of the sensor noise signal is determined and compared with set values.