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470 results about "Channel power" patented technology

Simulation light source controller parameter adaptive adjustment method and device

The invention relates to the technical field of light source controllers, and discloses a simulation light source controller parameter adaptive adjustment method and device, and the method comprises the steps: collecting an input voltage signal, an output current signal, an environment temperature signal and a channel power signal of a simulation light source controller, and inputting a neural network model for parameter mapping, obtaining a light source parameter dynamic response matrix; carrying out feature dimension reduction, and constructing a target optimization model; grid division is carried out on the parameter space, a steepest descent direction vector and a vertical search direction vector are respectively generated on divided grid points, and a parameter optimization direction set is obtained; iteratively updating each control parameter to obtain a parameter iteration sequence set; performing a voltage stabilization output test to obtain a plurality of candidate control parameter combinations; and the parallel verification test is carried out, and the optimal control parameter combination is determined, so that the inter-channel crosstalk of the simulation light source controller is effectively inhibited, and the problem of mutual interference when multiple channels work in parallel is solved.
Owner:东莞康视达自动化科技有限公司

Underwater single photon laser radar imaging method and system based on gating SPAD array

The invention discloses an underwater single photon laser radar imaging method and system based on a gated SPAD array, and belongs to the field of photoelectric detection and image processing. Through the underwater single photon TG-SPAD array range gating imaging system, real-time intensity imaging and high-precision depth imaging of an underwater scene target are realized, and the three-dimensional target reconstruction precision can reach a millimeter level. The system comprises an onshore synchronous control and image processing module and an underwater laser radar module installed in a sealed waterproof shell. The underwater laser radar module comprises a pulse blue-green laser emission module, a single photon TG-SPAD array detection imaging module, and a multipath power supply and signal transmission module. The single-photon TG-SPAD array detection module has two modes of intensity imaging and gating imaging. The pulse blue-green laser transmitting module comprises a pulse blue-green laser and a beam expander. The multi-path power supply and signal transmission module comprises a multi-path power supply, a photoelectric composite watertight cable and a bidirectional optical transceiver. The system has the advantages of simple structure, high stability, low power consumption and high integration level.
Owner:BEIJING INST OF TECH

Multi-channel power line carrier communication system

The invention relates to the technical field of carrier communication, in particular to a multichannel power line carrier communication system which comprises a data acquisition module, a first determination module, a second determination module, a judgment module, a selection module, a sending module and a correction module. According to the invention, through an accurate data acquisition and real-time determination mechanism, complex environment changes in a power network can be effectively dealt with, stability and high efficiency of communication are ensured, channels with optimal parameters such as signal strength, noise, delay and the like are optimized through multi-stage screening and determination, channels with relatively large interference and noise are effectively avoided, and the communication efficiency is improved. Meanwhile, the correction module can adjust the intensity threshold value in real time, it is guaranteed that the system still maintains excellent communication performance when the number of channels fluctuates and the network load changes, and the problems that due to the fact that the attention degree of the influence of real-time environment changes on signal quality is low, channel selection is inaccurate, and verification results are deviated are effectively solved.
Owner:BEIJING QIANJING WUYOU ELECTRONICS SCI & TECH

Long-period power grid wind-solar-thermal storage operation scheduling optimization method

The invention relates to the technical field of new energy power transmission, and discloses a long-period power grid wind-solar-thermal storage operation scheduling optimization method, which comprises the following steps: S1, constructing a new energy base system model, and calculating an output curve; s2, constructing an extra-high voltage direct current channel power delivery model; s3, solving the extra-high-voltage direct-current channel power delivery model by using CPLEX to obtain a direct-current channel delivery power optimization curve taking maximization of a new energy consumption rate considering the proportion of wind power and photovoltaic power at a delivery end as a target; s4, constructing a receiving end power grid system model; and the optimal matched power supply scale taking the minimum power abandoning rate of the new energy at the receiving end as a target function is obtained by the CPLEX. The method has the advantages that the direct-following-source-moving sending-out mode aims at meeting the external sending power requirement of a matched new energy base, the planning cost is effectively reduced, and the direct-current sending-out power and wind-light-storage power generation are coordinated and consistent.
Owner:STATE GRID NINGXIA ELECTRIC POWER CO +1

Communication power supply adaptive optimization method and system based on intelligent prediction

The invention discloses a communication power supply adaptive optimization method and system based on intelligent prediction, and relates to the technical field of power grid dispatching, and the method comprises the steps: collecting dynamic data and static data of a communication system, and constructing a load prediction model; on the basis of a load prediction model, combining static data to predict future load, combining dynamic data to calculate available energy of the system, and formulating a multi-path power supply scheduling strategy; and based on the prediction result, processing the prediction error, correcting the prediction result, and adjusting the power supply strategy under the condition of power interruption. The accurate load prediction enables the configuration of the standby power supply and the UPS system to be more reasonable, and reduces the risk of excessive configuration or insufficient configuration. The overall energy utilization efficiency is improved, and unnecessary energy waste is reduced. Efficient, reliable and intelligent operation of a power supply system is achieved, more stable and more economical power supply service is provided for users, and meanwhile a new solution is provided for intelligent management of an electric power system.
Owner:GUIZHOU WUJIANG HYDROPOWER DEV

Balancing electric power systems using multilevel optimization

PCT designated stage expiredWO2024255933A1FinanceForecastingChannel powerElectricity market
Present invention relates to a method of balancing electric power systems using multilevel optimization, wherein the method employs steps which shall primarily result in channeling power flows by clearing electricity markets, i.e., matching bids, close to real time. The method comprises following step of using a robust bi-level formulation, along with using a semídefinite-programming relaxation of the polynomial optimization problem to capture transmission constraints at the transmission-system operator (market operator) level and using extended formulation of the market-participant level to optimize run-time of the operation to effectively convexify the market-participant level.
Owner:CZECH TECH UNIV IN PRAGUE

Grid-connected inverter control method based on second-order linear active disturbance rejection

The invention discloses a grid-connected inverter control method based on second-order linear active disturbance rejection, and particularly relates to the field of grid-connected inverter control. Voltage and frequency error signals between the output side of the inverter and the power grid are obtained, a pre-synchronization control model is constructed, and voltage amplitude and frequency synchronization is achieved; a second-order linear active-disturbance-rejection controller is introduced in the frequency synchronization control process, an extended state observer is adopted to estimate the output frequency, the frequency change rate and a disturbance term, and a state error feedback control law is combined to generate a frequency regulation control quantity, so that accurate frequency control is realized; after grid connection, a dual-channel LADRC power regulation controller is constructed, and decoupling tracking control is carried out on active power and reactive power; meanwhile, on the basis of fast Fourier transform processing as a stable grid-connected state criterion, the method has the advantages of being high in control precision, high in anti-interference capability, good in current waveform quality, high in adaptability and the like, and is suitable for various grid-connected application scenes.
Owner:NANCHANG INST OF TECH

Power supply control method, target domain controller and storage medium

The invention provides a power supply control method, a target domain controller and a storage medium, and relates to the technical field of automatic driving and functional safety. The method is applied to a target domain controller which is connected with multiple power supplies. The method comprises the following steps: determining an automatic driving level of an automatic driving system of a target vehicle; if the automatic driving level is higher than or equal to the target level, determining an effective power supply in the multiple paths of power supplies; if the effective power supply comprises a reference power supply, using the reference power supply to supply power to the target domain controller; and if the effective power supplies do not include the reference power supply, using any one of the effective power supplies to supply power to the target domain controller. The problem of potential safety hazards existing in a single power supply method is avoided, power redundancy is provided for the target domain controller, and it is ensured that the target domain controller can obtain stable and reliable power supply when the automatic driving system is at the key level.
Owner:BEIJING YINWO AUTOMOBILE TECH CO LTD

Systems and Methods for Multi-Channel Power Tool Communication

A system and method for power tool communication is provided. In particular, a gateway device communicates in parallel with a plurality of power tools. The gateway device may establish communication links with a plurality of power tools, each communication link associated with a power tool, with a transceiver-converter pair of a plurality of transceiver-converter pairs, and with a frequency channel of a plurality of frequency channels. The gateway device may further communicate with each of the power tools in parallel over the communication links, wherein the communication with each respective power tool of the plurality of power tools occurs with the transceiver-converter pair and frequency channel associated with the respective power tool. In some examples, the gateway device establishes a link and communicates with the plurality of power tools using a shared transceiver-converter pair.
Owner:MILWAUKEE ELECTRIC TOOL CORP

Ad hoc network communication power control system and method based on no center node

The invention provides an ad hoc network communication power control system and method based on a centerless node, and relates to the technical field of wireless communication, and the system comprises a link quality evaluation module which is used for evaluating the link quality between a node and an adjacent node; the power adjusting module is used for calculating and adjusting the transmitting power of the node according to the link quality, the service requirement and the energy state; the channel power coordination module is used for monitoring the channel interference condition in real time and dynamically selecting a channel and coordinating power when the interference is relatively large; the energy sensing and limiting module is used for monitoring node energy and limiting a power adjustment range according to an energy state; and the information interaction and synchronization module is used for ensuring accurate exchange and synchronization of information among the nodes. According to the invention, by improving link quality evaluation, optimizing a power adjustment strategy, enhancing interference processing capability and realizing more effective energy management, efficient power control in a dynamically changing network environment is realized, and the overall performance and stability of the network are improved.
Owner:应急管理部大数据中心

Underwater focusing strong sound system and method based on phase control

The invention discloses an underwater focusing intense sound system and method based on phase control, and relates to the technical field of focusing intense sound, and the technical scheme is characterized in that a measurement and control upper computer is used for controlling the emission and detection of a trigger signal; the phase control signal generator is used for controlling a phase control signal of sound wave emission; the multi-channel power amplifier is used for driving the acoustic emission phased area array, and the acoustic emission phased area array is used for emitting acoustic waves; the area array calibration hydrophone is used for receiving signals of reflected sound waves; the target calibration sound source is used for transmitting a signal pulse width, the target sound field measurement hydrophone is used for receiving the signal pulse width transmitted by the target calibration sound source and forwarding the signal pulse width to the measurement and control upper computer, and the measurement and control upper computer receives the forwarded signal pulse width for system evaluation and correction. By generating the high-energy strong-focusing sound field and combining the actual underwater signal propagation process, accurate positioning and control of the underwater strong sound field can be completed, so that accurate focusing irradiation and high-resolution imaging of a long-distance small target are realized.
Owner:NAT UNIV OF DEFENSE TECH

Channel power slope control method and device, communication equipment and storage medium

The invention discloses a channel power slope control method and device, communication equipment and a storage medium, and belongs to the technical field of optical communication. The channel power slope control method comprises the following steps: acquiring a real-time channel optical power spectrum of a line side amplifier in an optical transmission system; and controlling the line side amplifier to adjust the channel power slope according to the real-time channel optical power spectrum. By adopting the technical scheme provided by the invention, the function of automatically adjusting the power slope of the channel supported by a line side amplifier such as an OLA site can be realized only through simple logic change under the condition of not additionally increasing hardware cost, so that an optical transmission network has quick and real-time response and distributed channel power slope automatic control capability; therefore, the problem of uneven power caused by the SRS effect in the system is efficiently solved.
Owner:ZTE CORP

Annular megawatt power combiner

The utility model discloses an annular megawatt-level power combiner, which comprises two groups of N-path coaxial waveguide power combiners for realizing N-in-one and one group of 2-path power combiners for realizing 2-in-one, each group of N-path coaxial waveguide power combiners comprises N coaxial input ports, N waveguide tubes and N-1 waveguide elbows; the N coaxial input ports are respectively and correspondingly arranged on the N waveguide tubes, and every two waveguide tubes are connected through a waveguide elbow, so that each group of N coaxial waveguide power combiners form a semi-ring structure; the output ends of the two groups of N-path coaxial waveguide power combiners are connected with the input end of the two-path power combiner, and a twisted waveguide is additionally arranged at the output end of the two-path power combiner, so that the output end of the two-path power combiner rotates by 90 degrees to form the output end of the annular megawatt-level power combiner.
Owner:JIANGSU DESHIHE COMM TECH CO LTD

Miniaturized broadband instantaneous frequency measurement receiver and data processing method

The invention particularly relates to a miniaturized broadband instantaneous frequency measurement receiver and a corresponding data processing method. The miniaturized broadband instantaneous frequency measurement receiver comprises a signal input port used for receiving an original radio frequency signal; the amplifying and filtering module is used for amplifying and filtering the original radio frequency signal and then outputting a first radio frequency signal; the first power divider is used for splitting the first radio frequency signal and outputting the first radio frequency signal to the multi-channel power division phase discrimination assembly; the multi-channel power division and phase discrimination assembly comprises a plurality of power division and phase discrimination modules and is used for carrying out instantaneous measurement on the signal frequency of the first radio frequency signal and outputting multi-channel video signals; the frequency measurement coding module is used for performing frequency measurement processing on the video signal and outputting a frequency code; wherein the signal input port is connected with the amplification filtering module and the power division phase discrimination module through microstrip lines; the power division phase discrimination module is connected with the frequency measurement coding module through a glass insulator. The size, the volume and the weight of the device all meet the requirement for miniaturization.
Owner:CHINA SHIPBUILDING IND CORP NO 723 RESEARCH INSTITUTE

Power adaptive congestion control method for power grid monitoring

The invention is applicable to the technical field of power distribution network monitoring, and provides a power grid monitoring-oriented power adaptive congestion control method, which comprises the following steps of: acquiring a network performance index and a power grid operation parameter of a power grid monitoring data transmission network, and determining a congestion state of a current network through a preset congestion evaluation model; a 5G ad hoc network node connection strength coefficient, a new energy monitoring data priority label, a west-to-east transmission channel power flow fluctuation coefficient and a regional vulnerability index are used as decision variables, and the minimum weighted transmission delay, the packet loss rate and the maximum new energy consumption responsivity are used as objective functions. Generating a control strategy corresponding to the current network congestion state according to the hybrid intelligent optimization model fusing reinforcement learning and a genetic algorithm; executing the control strategy to dynamically adjust the network resources; monitoring the execution effect of the control strategy, and feeding the result back to the model to update the parameters; and therefore, the requirements of multi-target optimization and differential service quality in a complex power grid monitoring scene can be met.
Owner:GUANGXI POWER GRID CORP

Power module calibration method, device, test system and readable medium

The present application relates to a calibration method, device, test system and readable medium for a power module, the method comprising: loading pre-acquired calibration data, the calibration data comprising measurement data corresponding to each calibration item in each output channel of the power module; acquiring at least one output channel to be calibrated and multiple target calibration items, and corresponding target values ​​through an interactive interface; determining a calibration order of the multiple target calibration items based on a pre-set calibration item priority; and calibrating the multiple target calibration items in sequence based on the calibration order, comprising: acquiring corresponding calibration parameters based on the target value and measurement data corresponding to at least one output channel to be calibrated and sending them to the power module, the power module adjusting the output value of the target calibration item in the corresponding output channel to be calibrated based on the calibration parameters, thereby solving the problem of low calibration efficiency of multi-channel power modules.
Owner:HANGZHOU CHANGCHUAN TECH CO LTD

Dual-channel millimeter wave transmitter, receiver and transceiver system

The invention discloses a dual-channel millimeter wave transmitter, a receiver and a transceiver system. The transmitter comprises a baseband signal processing circuit, a local oscillator signal processing circuit and a radio frequency front-end circuit comprising a high-frequency channel power amplifier, a low-frequency channel power amplifier and a signal synthesis switching circuit. The radio frequency front-end circuit selectively outputs signals of a high-frequency channel or a low-frequency channel through the signal synthesis switching circuit, and a current adjusting circuit is arranged in the baseband signal processing circuit and used for adjusting mismatch of a switching tube in the mixer. The disclosure also provides a dual-channel millimeter wave receiver and transceiver system based on the same concept. According to the invention, the problem of performance bottleneck of a single-channel transceiver in broadband application is solved, the system linearity is improved, the processing capability of high-order modulation signals is improved, and high power efficiency and high integration level are maintained through optimized circuit design.
Owner:TSINGHUA UNIVERSITY

Satellite communication system with multi-mode capability and communication method

The invention provides a satellite communication system with multi-mode capability and a communication method, and belongs to the technical field of satellite communication. A signal processing module of the system comprises a load control unit and a baseband processing unit, the load control unit is responsible for beam correlation calculation, transmission rate control, antenna channel power-on and power-off control and the like, the baseband processing unit is used for processing uplink and downlink signals, and the downlink supports multiple modes. The frequency conversion processing module is provided with an upper frequency conversion channel and a lower frequency conversion channel which respectively process transmitted and received signals. And the wide-beam receiving antenna is responsible for receiving uplink data. The phased array transmitting antenna is responsible for transmitting downlink data, is high in gain and fast in pointing adjustment, and supports multiple modes. According to the communication method, satellite transmitting and receiving are started by default, and transmitting serves as a beacon to assist a user in capturing. According to the invention, the working modes can be flexibly switched, the telemetering downloading capability and the information broadcasting efficiency are improved, and diversified communication requirements are met.
Owner:THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION

Channel estimation method of six-dimensional movable antenna base station and related equipment

According to the channel estimation method of the six-dimensional movable antenna base station and the related equipment provided by the embodiment of the invention, the six-dimensional movable antenna base station is provided with at least one antenna surface, the antenna surface comprises at least one six-dimensional antenna, and the method comprises the following steps: acquiring a pilot signal sent by a user terminal, performing statistical channel estimation calculation based on the pilot signal and the intermediate matrix to obtain a channel power matrix and a direction sparsity matrix between the user terminal and the six-dimensional antenna; solving the rate optimization model based on the channel power matrix to obtain a target position rotation parameter, and performing position rotation adjustment on the at least one six-dimensional antenna according to the target position rotation parameter; and instantaneous channel estimation is carried out based on the pilot signal and the direction sparsity matrix to obtain an instantaneous channel estimation result, so that the accuracy of channel estimation between the six-dimensional movable antenna base station and the Internet of Things terminal is improved while the information transmission rate between the six-dimensional movable antenna base station and the user terminal is effectively improved.
Owner:THE CHINESE UNIV OF HONG KONG (SHENZHEN)

Low-voltage power line carrier communication method and system based on multi-band cooperative modulation

The invention discloses a low-voltage power line carrier communication method and system based on multi-band cooperative modulation, and relates to the technical field of carrier communication, and the method comprises the steps: obtaining channel state information and service type information; constructing a channel power model according to the channel state information and performing calculation to obtain a transmitting power distribution value of a frequency band; performing preliminary allocation on frequency bands based on the service type information and the transmitting power allocation value to obtain a first frequency band allocation strategy; and optimizing the first frequency band allocation strategy to obtain a second frequency band allocation strategy, thereby realizing low-voltage power line carrier communication based on multi-frequency-band cooperative modulation. According to the method, the communication reliability of the system in a high-noise and strong-interference environment is improved, the service quality assurance capability for services with different priorities is enhanced, dynamic optimization and balanced utilization of spectrum resources are realized, and an efficient and reliable communication solution is provided for application scenes such as a smart power grid and smart home.
Owner:GUANGZHOU ANDIAN MEASUREMENT & CONTROL TECH CO LTD

Multi-channel synchronous impedance measurement system and impedance measurement method

The invention discloses a multichannel synchronous impedance measurement system and an impedance measurement method, the multichannel synchronous impedance measurement system comprises a signal generation module, a multichannel signal acquisition module, a control module and a display and operation module. The signal generation module comprises a DDS chip and a programmable control operational amplifier and is used for applying current excitation signals to two ends of a to-be-tested system, the multi-channel signal acquisition module comprises at least two multi-channel ADCs and realizes synchronous acquisition through a synchronous trigger circuit, and the control module realizes ADC data receiving and real-time calibration algorithm through an FPGA. And the display and operation module realizes measurement mode selection and result display. The method has the characteristics of high measurement precision and low single-channel power consumption, and signal leakage of adjacent channels is detected; 0.1%, 8 channels synchronously acquire time sequence deviation lt; the temperature drift is 1t after continuous working for 24 hours in 50ns; and 10 ppm.
Owner:ZHEJIANG XINCHI TECHNOLOGY CO LTD

Physical uplink shared channel power control

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may calculate at least one of a nominal power value, an alpha value, or an initial transmit power value for a physical uplink shared channel (PUSCH) transmission occasion in a full-duplex slot, wherein the PUSCH transmission occasion is associated with a radio resource control (RRC) connection resulting from a random access process during which the UE does not receive a PUSCH alpha set or is associated with a random access response uplink grant for a transmission or retransmission. The UE may transmit in the PUSCH transmission occasion using at least one of the nominal power value, the alpha value, or the initial transmit power value. Numerous other aspects are described.
Owner:QUALCOMM INC

Multi-path power supply standby power logic circuit for novel Internet of Things meter

The super capacitor charging module in the multi-path power supply standby power logic circuit for the novel Internet of Things meter comprises a resistor module, a diode D1 and a capacitor C1, wherein the resistor module, the diode D1 and the capacitor C1 are connected in series and are formed by connecting resistors R1 and R2 in parallel; the input ends of the resistors R1 and R2 which are connected in parallel are connected with + 5.2 V; one end of the capacitor C1 is grounded, and the other end is respectively connected with the diodes D1 and D2; + 5.2 V is respectively connected with the clock battery power supply AVBAT network and the VIN end of the voltage stabilizer U1 through a diode D3, and the output end of the diode D3 is also grounded through a capacitor C6; one path of network battery current ABATT is grounded through a capacitor C2 and a resistor R4 which are connected in parallel, and the other path of network battery current ABATT is connected with a resistor R3; the output end of the resistor R3 is respectively connected with diodes D4 and D6 and a resistor R5; the output end of the diode D4 is connected to the output end of the diode D3; the resistor R5 is connected with a power supply E1, and the power supply E1 is connected with a capacitor C3 in parallel; the output end of the diode D6 is connected with the output end of a diode D5; the structure is compact and use is convenient.
Owner:QINGDAO ITECHENE TECH CO LTD

Channel power spectrum estimation method based on measurement report data and related equipment

The embodiment of the invention provides a channel power spectrum estimation method based on measurement report data and related equipment. The method comprises the following steps: acquiring multiple pieces of measurement report data of a communication system to be tested; inputting each piece of measurement report data into a data positioning model for prediction processing to obtain a prediction position corresponding to each piece of measurement report data; based on each piece of measurement report data and the corresponding prediction position, communication grid division is carried out on each piece of measurement report data to obtain a division grid set, and the division grid set comprises a communication grid index of each piece of measurement report data; determining average grid report data of a plurality of pieces of measurement report data in each communication grid based on the divided grid set, and determining a grid center position of each divided grid; and performing estimation calculation based on the average grid report data and the grid center position to obtain an estimated channel power spectrum from the base station to each communication grid, thereby improving the accuracy and robustness of power spectrum estimation.
Owner:SHENZHEN RES INST OF BIG DATA

Time-sharing multi-channel power distribution system and control method thereof

The invention provides a time-sharing multi-channel power distribution system and a control method thereof, and the system comprises a microwave excitation source which is used for generating a continuous wave radio frequency signal; the common end of the multi-channel radio frequency switch is connected with the output end of the microwave excitation source, and the multi-channel radio frequency switch is used for switching a radio frequency signal to any one of a plurality of output channels of the multi-channel radio frequency switch in a time-sharing manner; the control module is electrically connected with the control end of the multi-channel radio frequency switch, and the control module is used for outputting a control signal according to a preset time sequence so as to drive the multi-channel radio frequency switch to be switched among different output channels; the directional protection module is connected between the microwave excitation source and the multi-channel radio frequency switch and is used for guiding reflection power from an output channel to a matched absorption load, so that the inherent problem of power division attenuation of a traditional power divider is solved; therefore, each output channel can obtain almost all original input power in the working gap, thereby greatly improving the power utilization rate and the transmission efficiency.
Owner:ZHONGJIU FLASH MEDICAL TECHNOLOGY CO LTD

Covert communication method based on STAR-RIS and full duplex cognitive interference

The invention provides a covert communication method based on STAR-RIS and full-duplex cognitive interference. The method comprises the following steps: establishing a covert communication system model based on STAR-RIS and full-duplex cognitive interference; based on a binary hypothesis testing problem, evaluating a false alarm probability and a missed detection probability of hidden user UR spectrum interception; calculating the false alarm probability, the missed detection probability and the detection error probability of malicious monitor UW detection based on the average receiving power of the malicious monitor UW and the judgment criterion; obtaining the optimal detection threshold and the minimum detection error probability of the malicious monitor UW based on the definition of the detection error probability and the monotonicity of the false alarm probability and the missed detection probability under different classifications; the minimum average detection error probability of the malicious monitor UW is calculated based on the statistical magnitude of the channel hypothesis and the channel power gain. According to the method, the interference signal is transmitted by adopting the full-duplex hidden user, hidden communication is ensured, the inhibition effect of the interference of the direct and cascade double links on monitors in the same area is better, and the probability that information is detected can be effectively reduced.
Owner:HENAN UNIVERSITY

Device and method for regulating and controlling horizontal electroplating uniformity of wafer under cooperative control of anode and cathode double partitions

The invention discloses a device and a method for regulating and controlling the uniformity of wafer horizontal electroplating under the cooperative control of anode and cathode double partitions, which are applied to the technical field of semiconductor manufacturing, and the key points of the technical scheme are as follows: the device comprises an electroplating cavity, a partition anode device is coaxially arranged at the bottom of the electroplating cavity, and the partition anode device is composed of a plurality of independently controlled concentric annular regions; a plurality of electroplating liquid supply openings are formed in the electroplating cavity in the circumferential direction, and annular flow equalizing plates with fixed interval holes are connected to the liquid supply openings; a partition auxiliary cathode device is arranged in the wafer clamping device, the wafer clamping device is composed of a plurality of annular metal sheets concentric with the wafer, the metal sheets are connected with different channels of the multi-channel power supply respectively, and the material of the metal sheets is the same as that of the electroplated metal; the channel modules of the multi-channel power supply are connected in parallel, and current parameters can be independently adjusted; the method has the technical effects that the problems of edge effect and center underplating in the wafer electroplating process are reduced, and the flexibility of the wafer electroplating process is improved.
Owner:SUZHOU JUNHUA SEMICONDUCTOR TECHNOLOGY CO LTD

Multi-channel power amplification architecture, radio frequency generation device and communication system

The present application belongs to the technical field of wireless communications. Provided in the embodiments of the present application are a multi-channel power amplification architecture, a radio frequency generation device and a communication system. The multi-channel power amplification architecture comprises a plurality of amplification circuits and a first multi-frequency power divider circuit; the plurality of amplification circuits are used for separately outputting first radio frequency signals and / or second radio frequency signals; the first multi-frequency power divider circuit comprises at least one microstrip line; the first multi-frequency power divider circuit performs power combining on multiple first radio frequency signals and / or second radio frequency signals on the basis of the impedance characteristic of the microstrip lines, and separately outputs power-combined signals of the first radio frequency signals and power-combined signals of the second radio frequency signals by means of a multi-frequency power dividing function. The embodiments of the present application implement power combining and multi-frequency power dividing on the basis of the multi-frequency power divider structure comprising the microstrip lines, so as to avoid design limitation, insertion loss and the like caused by bridge structures. The present embodiments facilitate design of large-bandwidth, large-backoff, high-efficiency and multi-frequency-band power amplifiers.
Owner:HUAWEI TECH CO LTD

Multi-path power regulator control method and system

The invention relates to the technical field of output sharing control, in particular to a multi-path power regulator control method and system, and the method comprises the following steps: collecting real-time data to establish a data queue, calculating a mean value and a standard deviation to generate a dynamic operation baseline, collecting the real-time data to establish the queue, calculating the mean value and the standard deviation to generate a dynamic baseline, the method comprises the following steps: calculating an adaptive over-current and open-phase alarm threshold based on a baseline, adding an external control quantity to obtain a total power demand, adjusting the number of cycles according to the stability of a load, reducing the number of active whole waves in proportion when the number exceeds the limit, and stopping a thyristor triggering instruction when the current or voltage abnormally and continuously reaches a preset count. According to the method, the self-adaptive threshold is calculated by establishing the dynamic operation base line in combination with the fluctuation amplitude and the sensitivity factor, current and voltage abnormity is specifically recognized, the total cycle number and the active whole wave number are adjusted in combination with the external power requirement and the load stability, single trigger angle control dependence is avoided, and power distribution balance and electric energy supply stability are achieved; and the equipment damage risk is reduced.
Owner:HUNAN SANSUO INTERNET OF THINGS INFORMATION TECH CO LTD

Multi-channel power supply and output control method for multi-channel power supply

The invention discloses a multi-channel power supply and an output control method for the multi-channel power supply. The method comprises the following steps: firstly, acquiring a time sequence parameter for identifying a power supply signal output by each power supply output channel of the multi-channel power supply; a power supply output control instruction is sent to each power supply output channel according to a preset channel arrangement sequence; and finally, after each power output channel receives the power output control instruction, the power output control instruction is executed after a preset delay time is delayed. The delay time corresponding to each power output channel is set when each power output channel executes the power output control instruction, so that each power output channel of the asynchronous communication transmission multi-channel power supply can be accurately opened or closed according to the time sequence set by the user demand, and the purpose and the function of the multi-channel power supply are increased.
Owner:SHENZHEN CITY SIGLENT TECH