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WO/2020/038692A1 |
The invention relates to a method for detecting low-frequency vibrations, in particular sub- synchronous resonance, in an electric supply network. The electric supply network has a network voltage with a network nominal frequency. The me...
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WO/2020/024320A1 |
A refined Fourier transform-based signal analysis method, belonging to the field of signal processing. Said method convolutes a signal x(n) to be analyzed and e-2 πj αmn/N, so as to obtain a refined Fourier transform form of x(n), N re...
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WO/2020/013811A1 |
Technologies are described for a system and method for analyzing a liquid sample. An example system may include a controller and an apparatus comprising a dispensing unit, a light source, and a sensor, where the system may be cost-effect...
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WO/2020/008036A1 |
The invention relates to a method for identifying low-frequency oscillations, in particular subsynchronous resonances, in an electrical supply network (510), wherein the electrical supply network (510) has a network voltage with a nomina...
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WO/2020/007970A1 |
The invention relates to a method for detecting low-frequency oscillations, more particularly subsynchronous resonances, in an electrical supply network (306), wherein the electrical supply network (306) has a mains voltage with a rated ...
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WO/2020/002184A1 |
A current sensor with a flux gate comprising a magnetic core (13), a measurement winding (14), an excitation circuit (23) arranged to generate a digital excitation signal (Se), an acquisition circuit (17) arranged to acquire an analogue ...
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WO/2020/002954A1 |
A location of at least one PIM source (10) within an antenna array assembly (2) is determined by applying an excitation waveform to a connection port (13), setting a multi-element phase shifter (8) to a first state to apply a respective ...
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WO/2019/240787A1 |
An apparatus, method and work product is disclosed. The method comprises measuring plural transmit signals and corresponding receive signals and determining, using a model describing a relation between each of the plural transmit signals...
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WO/2019/158754A9 |
Disclosed is an electrical condition monitoring system (100) including a data server arrangement that is connectable to a monitoring unit that is configured to monitor an electrical device when in operation, wherein: the monitoring unit ...
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WO/2019/225014A1 |
This spectrum analysis method includes: an accumulation step (S10) for accumulating n spectra obtained by consecutively repeating a fast Fourier transform (FFT) n times on an input signal; a receiving step (S11) for receiving a threshold...
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WO/2019/221301A1 |
A remote photoplethysmography (RPPG) system includes an input interface to receive a sequence of measurements of intensities of different regions of a skin of a person indicative of vital signs of the person; a solver to solve an optimiz...
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WO/2019/217349A1 |
A detection method and system are provided to detect an arc fault signal in a (HF) high frequency signal monitored on a power line. The HF signal is monitored on the power line over a predefined time period such as a half-cycle of a base...
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WO/2019/216819A1 |
The invention is a method to create an instantaneously wideband digital receiver system despite using a digital receiver with substantially smaller bandwidth than the complete system. The invention solves the problem by using frequency c...
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WO/2019/202732A1 |
This radiation interference wave measurement method includes: a provisional measurement step (S21) for carrying out broadband measurement which includes peak value detection and a quasi-peak value detection by targeting a measurement fre...
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WO/2019/182166A1 |
An electrical load determination apparatus and method using a modified MFCC are disclosed. According to a particular embodiment of the present invention, an electrical load-specific feature vector showing a clear difference in an electri...
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WO/2019/174462A1 |
A method for accurately measuring the harmonic voltage of a capacitor voltage transformer (CVT) by means of interpolation. In the method, by means of curve fitting, a mathematical interpolation calculation equation under the condition of...
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WO/2019/170001A1 |
Provided is a frequency spectrum monitoring data structured representation method, comprising the following steps: discretizing frequency spectrum monitoring data of a single station in a time dimension and a frequency spectrum dimension...
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WO/2019/170000A1 |
A spectrum monitoring data processing system, comprising: a station calibration and synchronization module, a monitoring data pre-processing module, a monitoring data compression processing module and a data transmission module. A spectr...
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WO/2019/170093A1 |
A method for generating a frequency spectrum state, and a device and computer storage medium; the method comprises: 1. determining and configuring complex electromagnetic environment parameters; 2. acquiring sensing data by means of wide...
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WO/2019/169442A1 |
There is provided herein a spectrum analyser and a method of operation thereof which is able to receive and analyse interference signals in a way that is substantially immune to sporadic interferences, allowing for more accurate detectio...
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WO/2019/169088A1 |
According to methods of performing measurements to determine a distance to a passive-intermodulation ("PIM") source, a first RF signal comprising a first frequency and a second RF signal comprising a second frequency may be applied to a ...
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WO/2019/167878A1 |
[Problem] To provide a power amplifier adjustment method and an adjustment system with which it is possible to adjust a linearizer using two waves of equal-power signals, and to make a non-linear influence on a multi-carrier signal small...
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WO/2019/166217A1 |
The present disclosure relates to a method and system for estimating a grid frequency or grid phase angle of an electrical power distribution system in which instantaneous voltages output by the electrical power distribution system are s...
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WO/2019/158646A1 |
The invention relates to a device (10) for the frequency analysis of a signal, comprising a diamond crystal (12) having NV centres defining sub-regions, an excitation unit (14) for optically or electrically exciting each sub-region, an i...
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WO/2019/158751A1 |
Disclosed is an electrical condition monitoring system that is connectable to an electrical device for monitoring the electrical device when in operation, wherein: (i) the electrical condition monitoring system includes (a) a sensing arr...
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WO/2019/161076A1 |
Systems, methods, and devices for detecting UAVs in an RF environment are disclosed. A node device is constructed and configured for network communication with at least one camera. The at least one camera captures images of the RF enviro...
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WO/2019/148163A1 |
Providing precisely timed pulses to lighting elements based on a desired dimming input, an optimum operating performance voltage of the lighting elements, a peak voltage of an alternating current (AC) power source, and the frequency of t...
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WO/2019/140800A1 |
The present invention relates to the technical field of electric vehicle charging, and discloses a vehicle-mounted charger wide-range duty cycle CP signal detection method based on a low-power-consumption chip. The method comprises the f...
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WO/2019/143535A1 |
Method of detecting PIM in downstream, where downstream signal is received from a cable plant via a subscriber network and an upstream signal is transmitted during active intervals to the plant via the subscriber network. PIM arises from...
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WO/2019/109969A1 |
A recognition method for a broadband multi-oscillation-mode component in a power system. The method comprises: firstly collecting a three-phase voltage and three-phase current signal of an alternating-current line of a power grid to acqu...
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WO/2019/105964A1 |
A frequency sensor is provided. The frequency sensor may include: a magnetoresistive nano-oscillator including a magnetic heterostructure of at least a magnetic free layer, a magnetic reference layer and a non-magnetic intermediate layer...
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WO/2019/102392A1 |
The invention relates to a method and system compression of a wide frequency range into a lower and narrower range. In particular, the invention relates to a method for frequency band compression of signals, wherein the method comprises ...
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WO/2019/099606A1 |
An apparatus includes a capacitor, a reference voltage, an input signal to be measured, and a frequency calculation circuit. The frequency calculation circuit is configured to select a capacitance value for the capacitor, charge the capa...
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WO/2019/093943A1 |
An electric drive system (1) comprises an electric machine (3), an assembly (4) for supplying electric energy to the machine when this operates as motor and store electric energy when the machine operates as generator, and a converter (7...
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WO/2019/094507A1 |
A method of feature selection and machine learning for wide data.
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WO/2019/087387A1 |
A frequency estimating device relating to the present invention is characterized by being provided with: a signal quality calculation unit that measures or predicts the qualities of a signal; a frequency range setting unit that sets, in ...
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WO/2019/081392A1 |
The present invention concerns a method (50) for estimating a frequency offset and a frequency drift affecting a useful signal comprising a code word formed by a channel encoder, comprising an analysis phase (51) comprising: - for two an...
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WO/2019/078602A1 |
This device for processing partial discharge includes: a proportional signal generation unit which generates a proportional signal which is proportional to the strength of an input signal; a transfer function generation unit which is pos...
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WO/2019/075059A1 |
An implantable medical device and method are provided for comprising a sensing circuit that is configured to sense and output physiologic data indicative of a physiologic characteristic of a patient and at least one processor. A memory i...
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WO/2019/072838A1 |
The present invention concerns a method for processing radar signals in a detection system comprising at least one computer architecture comprising at least one memory for storing at least one set of programs and/or data relating to the ...
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WO/2019/043874A1 |
This radiation interference measurement method takes a measurement frequency range as a target range and measures a radiation interference wave from a subject to be measured (12) which is placed on a turn table (11) through an antenna (1...
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WO/2019/045394A1 |
An electronic device is disclosed. An electronic device according to an embodiment may comprise a communication module, an output device, a microphone, and a processor, wherein the processor is configured to: acquire an audio signal from...
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WO/2019/040843A1 |
A monitoring device for monitoring a fabrication process in a fabrication system. The monitored fabrication system includes a process chamber and a plurality of flow components. A quartz crystal microbalance (QCM) sensor monitors one flo...
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WO/2019/037424A1 |
An embodiment of the present invention provides a 3D spectrum display device, comprising: an FFT module, used to perform FFT on time domain data; a detection module, used to perform detection on FFT output data; a 3D display mapping cont...
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WO/2019/035323A1 |
A signal processing system according to one aspect of the present invention comprises: a receiving device that receives a signal; and a plurality of detection devices that detect the components of the differing frequencies of a current t...
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WO/2019/031748A1 |
The present invention relates to a foreign object detecting method, and a device and system therefor. A method for detecting a foreign object in a wireless power transmitter according to an embodiment of the present invention may compris...
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WO/2019/013733A1 |
According to the present method, a constant frequency component Τdω is generated. On the basis of an input phase voltage signal and a nominal phase voltage signal, quadrature voltage signals are generated by determining a signal Uβ wh...
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WO/2019/004993A1 |
A frequency estimator for estimating a frequency, including a counter configured to count an integer number of full clock cycles during a measurement time window; a Time-to-Digital Converter (TDC) configured to measure a fraction of a cl...
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WO/2019/000034A1 |
A system for identifying faults in a radio frequency device under test, the system including a passive intermodulation test module, configured to perform passive intermodulation testing of the device under test on at least one test port;...
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WO/2018/236963A1 |
Systems, methods, and devices for determining a frequency of a received audio signal. A device may include a microphone, a speaker, and a processor configured to perform operations including receiving, using the microphone, a first audio...
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