10 results about "Signal Width" patented technology

The application discloses a kind of pulse shaping method and system of nuclear signal, belong to signal processing technical field, for the problems of existing pulse signal width in prior art Widening, thereby increasing the accumulation event, and there is no better anti-noise effect to Gaussian white noise, the present application includes: the output signal of detector is acquired, and output signal is structured into digital function signal;The Z transform is carried out after the discrete of the digital function signal, and output Z transform signal is obtained;Definition input signal is exponential signal, and the Z transform is carried out to the exponential signal, and input Z transform signal is obtained;According to the input Z transform signal and the output Z transform signal, the transfer function of input signal pulse shaping is obtained;The inverse Z transform is carried out to the transfer function, and the pulse shaping signal of input signal is obtained, and its time domain expression.The purpose is: the pulse shaping signal obtained has better signal-to-noise ratio, and it is convenient to obtain amplitude.

The application discloses a display control method, device and electronic equipment, and belongs to the technical field of electronic equipment. The method comprises the following steps: determining a first proportion based on a target brightness of a screen and a target light-emitting circuit voltage, the first proportion being a proportion of the number of non-display pixel rows in a frame of picture under the target brightness; determining a brightness control parameter of N frames of picture based on the target brightness and the first proportion, the brightness control parameter comprising a dimming signal width and a dimming signal quantity, N being an integer greater than 1; and displaying the N frames of picture based on the brightness control parameter of the N frames of picture.

A signal processing system and method, and a computer-readable storage medium, relate to the field of signal detection technology. The signal processing system includes an I / O port and a processing unit. The I / O port includes at least one input port for acquiring an input variable signal. The processing unit is configured to: continuously detect changes in the polarity of the received variable signal level, and record the moment when the change in polarity is detected as an initial moment, wherein the change in polarity includes a change from low level to high level, or a change from high level to low level; after the initial moment, determine a variable signal time parameter based on the duration of the variable signal level, or the moment when another change in the polarity of the variable signal level is detected; compare the variable signal time parameter with a preset variable signal width threshold, and determine the variable signal as a valid variable signal when the comparison result between the variable signal time parameter and the preset variable signal width threshold meets a preset valid condition.

The application provides a thickness AGC control method based on tension deviation detection and related equipment. The method comprises the following steps: measuring actual tension T act in real time; obtaining a tension setting value signal T ref , a thickness signal and a width signal of a strip; calculating unit tension deviation ΔT by using the tension setting value signal T ref , the thickness signal and the width signal and the actual tension T act ; calculating a change rate of the unit tension deviation based on the unit tension deviation ΔT; and obtaining a roll gap adjustment amount ΔS based on the change rate of the unit tension deviation. Thus, a thickness control method based on tension deviation is established. For raw materials, such as head and tail of tinned cold hard base plate or high-strength steel cold hard base plate, thickness fluctuation with high amplitude and high frequency caused by factors such as performance fluctuation can be well controlled in time, so that the thickness of the strip is stable, and the number of waste and defective products caused by thickness exceeding the standard is reduced.

The present disclosure relates to a digital phase signal generation system, comprising: a phase-locked frequency multiplication unit receiving a rotation speed pulse signal of a rotating shaft of a rotating machine, processing to obtain a frequency multiplication signal, obtaining a real-time shaft position value from the frequency multiplication signal and outputting; a digital setting unit obtaining a target phase value and outputting; a digital comparison unit receiving the real-time shaft position value and the target phase value in real time and comparing to obtain a synchronization signal pulse and outputting; a 60-based counter receiving and 60-based counting the synchronization signal pulse to obtain a counted signal and outputting; a decoder unit receiving the counted signal, taking the pulse of the counted signal as a starting phase, and forming a pulse signal through timing distribution; and a pulse distribution unit adjusting the signal pulse width of three independent pulse signals received to form six square wave signals with a mutual difference of 60 degrees, and the signal width of each adjacent two square wave signals being 180 degrees.

This disclosure relates to a driving device, chip, and apparatus for synchronous modulation of pulse width and amplitude. The driving device includes: a timing control module for generating pixel driving signals to drive pixel display; a width driving module electrically connected to the timing control module, generating a first pulse signal based on the pixel driving signals; an amplitude driving module electrically connected to the timing control module, generating a second pulse signal based on the pixel driving signals; and a driving module electrically connected to both the width driving module and the amplitude driving module, driving pixel display based on the width of the first pulse signal and the amplitude of the second pulse signal. This disclosure, by simultaneously writing the width driving module and the amplitude driving module into the driving module, enables the synchronous writing and driving of PAM and PWM source signals to the pixels, thereby reducing data transmission time, extending the effective light emission time within a frame, reducing IC size, improving IC cutting utilization, and reducing interference between different types of output channels.

An OSNR measurement method and apparatus, and a computer storage medium are disclosed. The OSNR measurement method may include: adjusting a measurement light source to an ASE state (S100); adjusting a signal width of the measurement light source to a first width according to a spectral bandwidth of a channel to be measured, and acquiring a total channel power at an OPM point of a receive-end station (S200); adjusting the signal width of the measurement light source to a second width, and acquiring a noise power at the OPM point of the receive-end station (S300), where the second width is less than the first width, and center frequencies of signals corresponding to the first width and the second width are staggered apart from each other; and determining an OSNR of the channel to be measured according to the total channel power and the noise power (S400).

The invention discloses a scale factor real-time compensation method based on online monitoring of optical fiber parameters, which comprises the following steps of: 1, confirming variables of a closed-loop optical fiber gyroscope scale factor, including optical fiber length in an optical fiber ring, average diameter of the optical fiber ring and average wavelength of working light waves of an optical fiber gyroscope; 2, determining the change rule of the optical fiber length of the optical fiber ring and the average diameter of the optical fiber ring along with temperature; 3, determining the change rule of the fiber length of the fiber ring and the average wavelength of the working light wave of the fiber-optic gyroscope along with the temperature; and 4, compensating the calibration factor based on the change rule of the fiber length of the fiber ring, the average diameter of the fiber ring and the average wavelength of the working light wave of the fiber-optic gyroscope along with the temperature. According to the method, the width of the peak signal can be effectively controlled to be unchanged, the zero offset repeatability of the fiber-optic gyroscope in a full temperature range is improved, meanwhile, the problem of long-term consistency of scale factors of the fiber-optic gyroscope is solved, and unified calibration and compensation of the same batch can be realized.

The invention discloses a signal processing system and method and a computer readable storage medium, and relates to the technical field of signal detection. The signal processing system comprises an IO port and a processing unit. The IO port comprises at least one input port and is used for acquiring an input variable electric signal. The processing unit is configured to continuously detect the level polarity change of the received variable electric signal, and record the moment when the level polarity of the variable electric signal is detected to change as the initial moment, and the level polarity change comprises change from low level to high level or change from high level to low level; after the initial moment, determining a power transformation time parameter of the power transformation signal according to the level duration of the power transformation signal or the moment when the level polarity change of the power transformation signal is detected again; and comparing the power transformation time parameter with a preset power transformation signal width threshold value, and when a comparison result of the power transformation time parameter and the preset power transformation signal width threshold value meets a preset effective condition, determining that the power transformation signal is an effective power transformation signal.

The invention provides a high repetition frequency picosecond-level negative pulse generation circuit for a gated camera, and the circuit comprises a power module and a signal generation module: the power module is used for providing a stable power supply for the signal generation module, and comprises an LDO circuit and a DC / DC boost circuit which are connected in parallel; the signal generation module is used for converting an input trigger pulse into a picosecond negative pulse to be output, and comprises a Schmidt shaping circuit, a narrow pulse generation circuit, an overvoltage trigger circuit, a Marx circuit, a high-pass filter circuit and a pulse width adjusting circuit which are connected in sequence; the narrow pulse generation circuit generates a narrow pulse signal, and the overvoltage trigger circuit triggers the Marx circuit to output a nanosecond negative pulse signal; after the nanosecond negative pulse signal passes through the high-pass filter, a higher harmonic signal is extracted, the signal width of the higher harmonic signal is reduced by a step recovery diode of the pulse width adjusting circuit, and a picosecond negative pulse signal is output.