393 results about "Phase adjustment" patented technology

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

The invention relates to a cross-domain clock synchronization method in a time sensitive network, and belongs to the technical field of time synchronization. The method comprises the following steps: establishing a multi-domain clock synchronization network topology based on a transit clock; the transit clock obtains main clock time according to the main domain synchronization message, carries out link delay measurement message interaction with adjacent equipment, records a corresponding timestamp and obtains link delay; transmitting the acquired main clock time, each timestamp and link delay to a synchronization error compensation prediction module in the transfer clock, calculating a clock time offset result by the synchronization error compensation prediction module, and predicting error compensation; frequency and phase adjustment is carried out on a local clock according to the calculated error compensation predicted value, a slave domain synchronization message is sent to adjacent slave clock equipment, and forwarding of the slave domain synchronization message and clock correction are carried out in sequence. According to the invention, accumulated errors such as jitter, time delay change and network congestion can be eliminated as much as possible.

The invention provides an optical calculation method and system based on on-chip diffractive optical feature extraction and a chip. The method comprises the following steps: loading data of an input end to an input optical signal; performing optical domain preprocessing on the input optical signal to obtain a preprocessed optical signal; the preprocessing mode comprises power distribution, time delay, amplitude and phase adjustment; performing feature extraction calculation on the preprocessed optical signal through an on-chip diffraction optical feature extractor to obtain optical feature information which is output in parallel; the optical characteristic information is transmitted to a receiving end. According to the method, feature extraction and preliminary calculation are carried out in the optical domain, the calculation time is greatly shortened, the high-speed requirement can be met, redundant data can be compressed, the speed, bandwidth and efficiency of the whole calculation system are improved, and the severe bottleneck caused by electronic calculation is solved.

The invention discloses a slope type caterpillar track gravity energy storage multi-machine system, and relates to the technical field of gravity energy storage. Comprising a main system unit, a supporting track laid according to a mountain structure, a chain type mass block dragging device arranged on the supporting track, double-motor assemblies arranged at the two ends of the supporting track, and a control system used for controlling the main system unit to operate in a power mode and a phase modulation mode. By designing a dual-mode operation system of a power mode and a phase modulation mode, dual functions of energy storage and discharge and reactive power regulation are realized, and by arranging an auxiliary motor and a kinetic energy recovery device and combining a staggered arrangement scheme of a heavy-load track and a light-load track, efficient recovery and cyclic utilization of energy in the movement process of the mass block are realized, and the energy utilization rate of the mass block is improved. By establishing a mathematical relationship model of track arrangement and adopting a design scheme of performing dynamic optimization according to mountain characteristics, the operation safety is ensured through an automatic mass block carrying and stacking system.

A phase adjustment circuit includes a clock generation unit (1) which generates a sinusoidal differential clock signal; a variable amplifier (2) which receives a differential clock signal output from the clock generation unit (1) as an input, outputs an amplitude-adjusted differential clock signal, and simultaneously outputs an amplitude-adjusted in-phase signal; an adding unit (3) which adds an in-phase signal to each of a positive phase side and a negative phase side of the differential clock signal output from the variable amplifier (2); a differential transmission line (4) which transmits the differential signal output from the adding unit (3); and a terminal circuit (5) which terminates the differential transmission line (4).

The invention provides a communication method and a related device, which can realize protection of user privacy in a perception scene. The method comprises the steps that a first device and a second device determine the type of a target scrambling function corresponding to a first sensing scene and parameters included in the target scrambling function; the first device generates a first signal and a second signal, the second signal is obtained by performing phase adjustment on the first signal based on a target scrambling function, and the target scrambling function is determined based on the type of the target scrambling function and the parameter; the first device outputs a first signal and a second signal, sends first information through a first antenna corresponding to the first device, and sends the second signal through a second antenna corresponding to the first device; correspondingly, the second device receives the signal from the first device, and obtains a sensing result based on the received signal and the target scrambling function.

The present disclosure provides an antenna and electronic device, and belongs to the field of communication technology. The antenna includes a feed layer, a phase adjustment layer, and a radiation layer, wherein the feed layer is configured to transmit a microwave signal to the phase adjustment layer; the phase adjustment layer is configured to phase-shift the microwave signal by a preset phase shift amount; and the radiation layer is configured to radiate the microwave signal phase-shifted by the phase adjustment layer; the radiation layer includes at least one first radiation patch.

The invention discloses an antenna phase adjustment method and device, equipment and a medium, and is applied to the technical field of antennas. The antenna phase adjustment method comprises the steps that an initial population set is generated, the position matrix of each individual in the population set is in one-to-one correspondence with antennas in an antenna array, the numerical value of one position in the position matrix is the numerical value of one gene in the individual, and the genes are in one-to-one correspondence with antenna units in the antennas; performing iterative operation on the initial population set according to a particle swarm algorithm and a genetic algorithm to obtain a position matrix of optimal individuals in the population set; and adjusting the phase of the antenna according to the position matrix of the optimal individual. Through the scheme of the invention, the problems of difficulty in antenna calibration, low accuracy, time consumption and the like in related technologies about antenna calibration are solved, the time overhead of antenna calibration is reduced, and the accuracy of antenna calibration and the antenna performance are improved.

The invention relates to a motor encoder protocol real-time conversion device and a minimum delay method, and the method is characterized in that a high-precision clock is arranged in a protocol converter, and the following steps are executed: periodically reading position data from an encoder, recording a latching moment and a position value of the encoder, and calculating a real-time speed; and when a position reading request of the driver is received, recording a request moment, carrying out interpolation calculation by utilizing a set calculation formula, and returning a compensated real-time position to the driver. In order to minimize time delay, a phase-locked loop is adopted, the request time of the driver is taken as a reference, and the reading trigger time sequence of the encoder is synchronized and subjected to phase adjustment, so that the encoder can respond to the next request of the driver as soon as possible after data reading is completed, and the interpolation error is reduced to the minimum. The method effectively solves the problem of position transmission delay when encoders and drivers of different protocols are interconnected, and is suitable for high-precision servo control.

To track an object with radar, and achieve greater than range resolution precision, the phase of a difference signal can be utilized and adjusted as the tracked object crosses between resolution ranges. Changes in the object's distance can be detected with greater than range resolution precision by utilizing the phase. Such changes can iteratively inform the determined distance across multiple phase cycles within a single distance range. As the movement of the object approaches, and then crosses, between resolution ranges, the phase as determined within an origin resolution range can be compared with a coincident phase within the destination resolution range and the difference can then be utilized to adjust the phase as the object then remains within the destination resolution range. Such phase adjustments can be applied across multiple resolution ranges, allowing for the tracking of an object, utilizing radar, while achieving greater than range resolution precision.

A symbol processing method and apparatus are provided. The method includes: obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmit symbol and a second set corresponding to a second transmit symbol; performing a copy operation on the first set and the second set, so that both the first set and the second set have a first complex-valued symbol; performing signal processing on the first set and the second set; and performing phase adjustment on the first transmit symbol and / or the second transmit symbol after the signal processing, to ensure that a symbol component whose end position is the first reference point in the first transmit symbol is the same as a symbol component whose end position is the second reference point in the second transmit symbol. This application can ensure that an inter-symbol guard period is flexibly configured.

The invention discloses a phase adjustment sampling circuit, a sampling control method and electronic equipment. According to the sampling circuit, a first differential branch is connected between a first port and a first input end of a sub analog-to-digital converter; the second differential branch is connected between the second port and the second input end of the sub analog-to-digital converter; the first correction circuit is connected between the second port and the first difference branch circuit; the second correction circuit is connected between the first port and the second difference branch circuit; the third correction circuit is coupled to the output end of the sub-analog-to-digital converter, the first output end is coupled to the first correction circuit, the second output end is coupled to the second correction circuit, and the third correction circuit is configured to adjust the capacitance parameter of at least one of the first correction circuit and the second correction circuit based on the output result of the sub-analog-to-digital converter. Therefore, even harmonics in the sampling result of the sampling circuit are corrected. The analog-to-digital conversion chip has the technical effects that the mismatch of the differential input signal is reduced, and the even harmonic energy of the analog-to-digital conversion chip is reduced.

The invention provides a chip testing method and device, and belongs to the technical field of chip testing. The method comprises the steps that an intermediate clock with the frequency the same as that of an input channel-associated clock in a test excitation signal is generated through a high-frequency clock signal, and the frequency of the high-frequency clock signal is larger than that of the input channel-associated clock; adjusting the phase of the intermediate clock according to the time sequence parameter of each tested chip, and generating a phase correction associated clock; and replacing the input associated clock based on the phase correction associated clock to update the test excitation signal so as to test each tested chip by using the updated test excitation signal. Independent time sequence compensation of each chip is achieved through high-frequency signal dynamic high-precision phase adjustment, the limitation of a traditional single time sequence parameter is broken through, and flexible consideration of the test rate and the test number is achieved. From the aspect of deployment, the design process and the file format of the original test system do not need to be modified, the compatibility is good, the universality and the deployment efficiency are improved, and the deployment cost is reduced.

The invention belongs to the technical field of robots, and discloses a differential ball joint which comprises a shell, a first input bevel gear, a second input bevel gear, an output bevel gear and a phase adjusting assembly, and the first input bevel gear, the second input bevel gear and the output bevel gear are all rotationally arranged on the shell; the first input bevel gear and the second input bevel gear are both meshed with the output bevel gear, and the axis of the output bevel gear is perpendicular to the axis of the first input bevel gear and the axis of the second input bevel gear. The phase adjusting assembly is used for adjusting phases of the first input bevel gear and the second input bevel gear, so that gear teeth in the first input bevel gear and the second input bevel gear make contact with tooth surfaces of two adjacent gear teeth in the output bevel gear, and therefore transmission gaps between the first input bevel gear and the output bevel gear and between the second input bevel gear and the output bevel gear are eliminated. The transmission stability is improved, and the transmission noise is reduced.

The invention provides a three-phase balance user phase adjustment method based on multi-objective optimization control, and relates to the technical field of power system control. According to the technical scheme provided by the invention, after the phase distribution results under different constraint conditions are calculated, the problem of deterioration of other indexes possibly caused by single target optimization can be avoided by constructing the multi-objective function containing the indexes. And meanwhile, multi-objective function value calculation and comparison are carried out on each phase distribution scheme, and the phase distribution scheme with the minimum multi-objective function value is selected as the optimal scheme, so that the overall optimality and the balance of each technical index can be considered. Compared with a phase adjustment mode in which only a single-phase meter or a three-phase meter is considered in the prior art, the phase adjustment scheme provided by the invention adopts a multi-objective function to realize trade-off optimization among indexes for the condition that the single-phase meter and the three-phase meter exist at the same time, so that accurate phase adjustment can be realized, and the load balancing effect is improved.

The invention discloses a dynamic balance adjusting device and method for a magnetic suspension fan rotor, and relates to the technical field of self-adaptive adjustment. The method comprises the steps of collecting a suspension bearing displacement signal, a magnetic suspension coil current signal, a machine body vibration acceleration signal, a motor end electromagnetic response signal and a rotor angular displacement parameter, and constructing a rotor operation signal set; performing preprocessing and feature extraction on each signal to obtain four types of feature data; inputting the comprehensive characteristic data into a rotor balance diagnosis model to identify the unbalance state of the rotor; based on an amplitude phase inversion algorithm, solving a virtual counterweight amplitude and a phase adjustment amount, and injecting into a suspension coil to execute adjustment; judging whether dynamic correction is needed or not according to the real-time comprehensive characteristic data, and if yes, generating a dynamic gain coefficient to correct the adjustment parameters and then injecting the adjustment parameters into the suspension coil again; according to the invention, real-time identification and self-adaptive adjustment are carried out on the mass unbalance vibration of the magnetic suspension fan rotor, the operation vibration of the rotor is effectively inhibited, and the balance stability and reliability of the system are improved.

A phase adjustment circuit (11) of a received signal quality monitor is capable of performing phase scanning of a sampling clock signal (phi e) of a reference sampler in a phase range that is several times the unit interval (UI) of a serial data signal. A first synchronization circuit (13A) receives a first output signal of one sampler included in the plurality of data receiving samplers and a second output signal of the reference sampler (SMe). A first output signal and a second output signal synchronously output from the first synchronization circuit (13A) are input to a comparison logic circuit (15), and the comparison logic circuit (15) outputs a comparison result relating to the quality of the received signal.

The invention relates to the technical field of phase adjustment, and discloses a synchronous phase modifier phase modulation method adopting a digital twinborn model, and the method comprises the steps: carrying out the modularization processing of a synchronous phase modifier, and obtaining a system module; identifying a power grid topological structure of the power system, and collecting load data, generator data and line parameters of the power system to construct a simulation model of the power system; integrating the system module and the simulation model to obtain an integrated model; performing impedance adjustment on the module integration system to obtain an impedance adjustment model; collecting system data of the synchronous phase modifier, and analyzing control characteristics of the synchronous phase modifier; and executing the phase adjustment reference of the impedance adjustment model by using the control characteristics, obtaining a digital twin model when the model precision meets the preset model precision, analyzing the real-time power data by using the digital twin model, and performing phase adjustment on the power system based on the analysis result. The accuracy of phase adjustment of the synchronous phase modifier can be improved.

The invention relates to a satellite-borne clock control method, device and system based on model prediction. The method comprises the following steps: performing state estimation according to a pre-constructed high-precision clock model and historical clock error data to obtain a clock state at each moment in a prediction interval; constructing a quadratic form cost function according to the clock state of each moment in the prediction interval and the weight matrix, minimizing the quadratic form cost function by adopting a rolling optimization method, outputting a control quantity of the current control moment, and optimizing the control quantity by utilizing a differential control quantity and a differential coefficient to obtain an optimal control quantity; obtaining a to-be-adjusted clock error sequence according to clock error data corresponding to a future moment in the prediction interval, performing phase adjustment on the to-be-adjusted clock error sequence according to the optimal control quantity of the current control moment and a time interval of two adjacent clock errors to obtain an adjusted clock error sequence, and iteratively updating the clock error sequence according to a time sequence to realize satellite-borne clock control. By adopting the method, the performance of the satellite-borne secondary frequency standard can be enhanced.

A clock generator circuit including an integer divider, having a first input receiving a reference clock and configured to generate an intermediate clock at a frequency divided down from a frequency of the reference clock by an integer value, a digital delay stage configured to generate a delayed intermediate clock delayed from the intermediate clock by a number of fractional cycles of the reference clock selected responsive to a fractional cycle value, and an analog delay stage configured to generate an output clock delayed from the delayed intermediate clock by a delay value selected responsive to a fine adjustment value. The clock generator circuit further includes math engine circuitry configured to compute a phase adjustment code responsive to the phase adjustment word, the phase adjustment code comprising the integer value, the fractional cycle value, and the fine adjustment value. The clock generator circuit may be implemented in a clock domain of a system along with one or more other clock generator circuits that each generate an output clock based on a reference clock generated by a reference clock source, such as a phase-locked loop.

The invention provides an ultra-wideband numerical control phase shifter, relates to the technical field of numerical control phase shifters, and realizes accurate control of a small-angle phase and keeps a stable phase shift characteristic in a wider frequency range by combining phase shift units. Meanwhile, a flexible and efficient phase control mechanism is provided by adopting a switch unit and an adjusting branch circuit which are formed by FETs (Field Effect Transistors). The capacitor connection mode can be adjusted through simple switching operation, and various equivalent capacitor combinations are realized, so that the phase is accurately controlled. Compared with a traditional design, dependence on discrete adjusting elements can be reduced, circuit complexity and size can be reduced, and the range and precision of phase adjustment can be improved, so that the response speed and the working dynamic range of a system are improved, and the effect of improving the flexibility and precision of phase adjustment is achieved; and the requirements of high-frequency and broadband application on rapid and accurate signal processing are met.

Embodiments of the present invention provide a phase determination method, apparatus, device, and storage medium. The method includes: obtaining a reference phase value of an equidistant processing device; determining a first phase difference corresponding to the product production device when the product production device is operating at a uniform speed; wherein the first phase difference is the difference between the phase value of the product production device and the phase value of the equidistant processing device when the product production device is operating at a uniform speed; obtaining a real-time phase difference between the product production device and the equidistant processing device; and determining a target phase value for the equidistant processing device based on the reference phase value, the first phase difference, and the real-time phase difference. The present invention can adjust the phase of a product so that the product enters the equidistant processing device.

A transmission line phase shifter, a chip, and a radar sensor are provided. The transmission line phase shifter includes at least one transmission line phase-shifting unit. At a calibration stage, a preset number of transmission line phase-shifting units are configured to be in a state of a first phase or in a state of a second phase and configured to output an output RF signal, such that phase calibration information of each transmission line phase-shifting unit is determinable. At an operation stage, the phase adjusting circuit of the respective transmission line phase-shifting unit is configured to receive a corresponding phase shifting control signal and to adjust the respective transmission line phase-shifting unit, to enable the respective transmission line phase-shifting unit to shift a phase of an input RF signal by a calibrated first phase or a calibrated second phase.

In some embodiments, the phase adjustment circuit includes a clock generator that is configured to generate a sinusoidal clock signal, and may include a variable amplifier that is configured to receive the clock signal output from the clock generator as an input, output an amplitude-adjusted sinusoidal differential clock signal, and output an amplitude-adjusted in-phase signal. The phase adjustment circuit may include an adder that is configured to output a differential signal obtained by adding the in-phase signal to each of a positive phase side and a negative phase side of the differential clock signal output from the variable amplifier, a differential transmission line that includes two transmission lines configured to transmit the differential signal output from the adder, and a terminal circuit that is configured to terminate the differential transmission line where a signal is output from a terminal of any one of the two transmission lines.

The invention belongs to the technical field of radar interference, and particularly discloses a retrodirective array for cross-eye interference, which comprises at least two antennas, the antennas are configured to receive input signals and forward interference signals based on the input signals, and each antenna is provided with a transponder assembly coupled with the antenna. The transponder assembly can modify the phase of a forwarding signal thereof according to a reference signal, that is, all transponder assembly configurations except at least one transponder assembly can invert the phase of the forwarding signal of an input signal of a coupled antenna thereof according to the reference signal, so as to ensure that all signals are in phase at the source of the input signal. At least one transponder component is configured to introduce at least one phase adjustment to a forwarded signal such that the signal forwarded from the antenna has a phase difference of 170 DEG to 190 DEG and an amplitude difference of less than 3 dB at an input signal source, eliminate inherent delays in a Van Atta cross-eye jammer, introduce angle errors in a threat radar, and achieve conditions required for cross-eye jamming.

The invention discloses a multi-protocol self-adaptive management docking station core board control method and system, and belongs to the technical field of docking station core board monitoring control, and the method comprises the steps: analyzing the stability risk analysis necessity of a docking station core board, analyzing the stability risk score of the docking station core board, and determining the stability risk of the docking station core board; and performing control optimization adjustment on the docking station core board based on the stability risk score of the docking station core board, performing protocol layer clock recovery circuit sampling phase drift analysis, analyzing a protocol layer clock recovery circuit sampling phase drift characterization factor, and executing control adjustment of sampling phase drift. According to the method, the stability and reliability of system operation can be improved, the link retraining frequency is reduced, sampling phase adjustment is optimized, sampling point dislocation, inter-frame phase lock out-of-step and systematic communication faults are prevented under the condition of multi-protocol concurrent working, and long-term stable operation and multi-protocol compatibility of the docking station core board are guaranteed.

The invention discloses an audio signal phase adjustment method, device and equipment and a storage medium, and relates to the technical field of vehicle-mounted loudspeakers, and the method comprises the steps: carrying out the frequency division processing, delay compensation and equalizer adjustment of an input audio signal, and obtaining an initial processing signal; outputting the initial processing signal to a target loudspeaker, and measuring a current frequency response curve of the target loudspeaker; determining an all-pass filter coefficient and a maximum phase filter coefficient according to the frequency division point, the wave crest and the wave trough of the current frequency response curve; performing phase adjustment on the initial processing signal based on the all-pass filter coefficient or the maximum phase filter coefficient to obtain an adjusted audio signal; and outputting the audio signal to the target loudspeaker, and returning to the step of measuring the current frequency response curve of the target loudspeaker until the current frequency response curve meets a preset flatness requirement, thereby completing phase adjustment. Phase distortion at the frequency division point and the wave crest and the wave trough of the frequency response curve can be improved through phase adjustment, so that the frequency response curve of the loudspeaker is optimized.

A voltage amplitude and phase adjustment apparatus and method, and a computer device and a storage medium. The apparatus comprises: a three-phase multi-winding transformer, a first winding switch and a second winding switch, wherein a primary side of each phase of the three-phase multi-winding transformer comprises a first split winding and a second split winding. A head end of the first split winding is connected to an input end of the present phase, and a tail end of the first split winding is connected to a head end of the second split winding of the present phase by means of the first winding switch, and is connected to the head end of the second split winding of an adjacent phase by means of the second winding switch. By means of controlling the operating states of the winding switches, the connection mode of the split windings is switched, thereby widening the adjustment range of a circuit.

To obtain a phasing processing system, etc., with which, while having the capability of suppressing a noise signal in either of orthogonal axis directions, it is possible to suppress a computing amount in adaptive phasing processing.SOLUTION: The present invention comprises: a subarray division processing device 10 that carries out the process of dividing a plurality of signals pertaining to the detection of a sensor array 200 which is composed by arraying a plurality of sensor 201 in a plurality of orthogonal axis directions and generating as a signal pertaining to the detection of a plurality of subarrays; an elevation phasing processing device 20 that carries out phasing processing on the basis of the signals processed by the subarray division processing device 10; and a horizontal phasing processing device 30 that carries out phasing processing on the basis of the results of phasing processing carried out by the elevation phasing processing device 20. The subarray division processing device 10 includes: a first subarray division processing unit 11 that divides a plurality of signals along some axis direction and generates a first subarray signal; and a second subarray division processing unit 12 that divides the first subarray signal into a plurality of second subarray signals and outputs these to the elevation phasing processing device 20.SELECTED DRAWING: Figure 1

This disclosure relates to a driving circuit, a driving chip, and a display device. The driving circuit includes a clock module and M channel modules. The clock module generates N first clock signals with a phase difference between each pair of signals. Each channel module includes a phase adjustment module, a PWM generation module, and a selection module. The phase adjustment module is connected to the clock module and is used to phase-shift the N first clock signals to obtain N second clock signals. The PWM generation module is connected to the clock module and the phase adjustment module and is used to generate a first PWM signal based on a reference clock signal and a PWM fundamental frequency, and to generate a second PWM signal based on the reference clock signal, a target clock signal, and the PWM fundamental frequency. The selection module is connected to the PWM generation module and is used to select either the first PWM signal or the second PWM signal for output based on a first selection signal, as the target PWM signal. This disclosure simplifies the circuit structure and reduces the circuit footprint.