102 results about "Channel coupling" patented technology

The invention discloses a dynamic S-box and cross-channel diffusion image encryption method based on six-dimensional hyper-chaos driving, and belongs to the field of information security, and the method comprises the implementation steps: 1) constructing a novel six-dimensional hyper-chaos system; 2) constructing a cross-channel diffusion scheme based on the six-dimensional hyperchaotic system; 3) constructing a dynamic S box library based on a six-dimensional hyperchaotic system; according to the invention, by introducing an inter-channel coupling mechanism, the potential safety hazard of traditional sub-channel encryption is effectively relieved. A dynamic S box generated based on chaotic system state self-adaption enhances the nonlinear confusion characteristic, and Arnodcat mapping transformation realizes global pixel scrambling. Theoretical and experimental results show that the method overcomes the limitation of a low-dimensional system, and the aspects of statistical analysis, key sensitivity, attack resistance and the like are remarkably improved.

The invention relates to the technical field of wireless communication, and discloses a wireless communication adaptive method and system based on a data transmission state, and the method comprises the steps: obtaining multi-source data, carrying out the preprocessing of the multi-source data, obtaining a CSI compression matrix, predicting the channel coherence time, dynamically adjusting the CSI sampling interval, and defining a load-channel coupling factor; obtaining cross-layer data based on the CSI compression matrix, performing fusion through a rotation matrix to obtain a fusion matrix, and extracting a physical layer fusion feature and an application layer fusion feature to calculate a multi-target state score; establishing a 5G power compensation mechanism based on cross-layer data, calculating a four-dimensional influence tensor, performing tensor decomposition and optimal action selection, and decomposing T into a core tensor and a factor matrix; selecting an optimal parameter combination through modular product calculation; based on cross-layer data, a quantum entanglement feedback mechanism is introduced, data is fed back, entanglement state association cross-layer indexes are designed, a quantum gate is adjusted through entanglement state design, and a model is updated in real time in combination with incremental learning.

The invention discloses a radio frequency closed-loop decoupling device and method, and the device comprises a radio frequency sampling module which collects a radio frequency signal of a resonant cavity and converts the radio frequency signal into an intermediate frequency signal; the preprocessing module is used for converting the intermediate frequency signal into an I-path signal and a Q-path signal; the extended state observation module is used for obtaining an I component estimated value, a Q component estimated value and a corresponding generalized disturbance estimator according to the I-path signal and the Q-path signal; the decoupling control module is used for carrying out proportional control according to the I component estimation value and the Q component estimation value, and taking the generalized disturbance estimation quantity as decoupling compensation quantity for superposition to obtain a baseband signal so as to suppress channel coupling and external disturbance; and the radio frequency driving module is used for converting the baseband signal into a driving signal so as to control the amplitude and the phase of the radio frequency output of the power source. According to the invention, dynamic decoupling of the I signal channel and the Q signal channel is realized, and the stability and the control precision of the output amplitude and the phase of the power source are improved.

The invention discloses a point cloud compression method based on multi-dimensional feature fusion, electronic equipment and a medium, and aims to effectively reduce the compression bit rate while maintaining the precision of a space structure. According to the method, space, channel and topology redundant information is fused under a unified framework for the first time, and the method is suitable for efficient point cloud compression of various three-dimensional scenes such as automatic driving and virtual reality. Meanwhile, a local graph convolution Mama module is introduced, and the limitation that a point cloud topological structure is difficult to capture in a traditional method is effectively solved. Then, the octree nodes are divided into two dimensions of space and channel through a space-channel coupling grouping module, so that gradual feature fusion is realized, and the context information prediction precision is improved; experimental results show that the compression efficiency is remarkably improved on a plurality of radar and voxel human body model data sets.

The invention relates to the technical field of state data monitoring, in particular to an AI management and control terminal multi-source state data acquisition and processing system which comprises a channel coupling detection module, a signal time sequence alignment module, a state trend organization module, a jump path locking module and a state response result generation module. According to the method, the channel response trend is judged through the impedance change direction, the passing channel and the limited channel can be continuously divided, a unified initial signal set is formed in combination with triggering time sequence alignment, the channel change direction is extracted under the state of consistent time, and the cooperative change relation is recognized; a stable path structure is constructed based on a synchronous trend in a continuous period, and is correspondingly associated with a terminal task structure, so that channel state evolution, trend trend and a control target form continuous connection, and the collaborative adaptation capability of multi-source state data in three dimensions of spatial distribution, time process and trend change is enhanced; and the direction aggregation of channel screening and the task integrating degree of control response are improved.

The invention discloses a high-level geological disaster chain monitoring node deployment method based on a wireless ad hoc network, and relates to the technical field of geological disaster monitoring and early warning, and the method comprises the following steps: S1, obtaining interference characteristics through a time-frequency observation layer triggered by an earthquake, and building a time baseline; s2, identifying a cross-channel coupling relationship according to the energy spectrum and the drift baseline, and determining sensitive nodes; s3, reconstructing a convergent path by replacing a distortion channel with a shadow link; s4, constructing a time stack and suppressing routing oscillation by a hysteresis gate; s5, generating a time-varying virtual impedance route according to the time stack to realize peak shifting stable forwarding; and S6, completing broken-loop control of residual crosstalk through inverse phase traction and the metasurface antenna, and finally enabling the network to maintain long-term stable operation. According to the method, stable convergence and closed-loop regulation and control of the ad hoc network are realized through interference feature extraction, path reconstruction, time stack hysteresis vibration suppression, virtual impedance peak shifting forwarding and inverse phase broken-loop interference control.

The invention provides a multi-channel light source controller and a control method thereof, and the controller comprises a main microcontroller, a plurality of independent constant-current driving channels, and an advanced time sequence control unit which is independent of the main microcontroller on the physical level. An input interface of the light source controller is configured to be a configuration instruction interface and a hard real-time trigger interface on the hardware level, and instructions with different real-time performance and complexity are processed respectively. The main microcontroller is integrated with a multi-channel cooperative control unit, a light source characteristic model unit, a channel coupling compensation unit and an intelligent safety protection unit; the advanced time sequence control unit is configured to generate corresponding driving signals according to different interface instructions. Through the structure, the problems of control lag, channel interference, inaccurate model, safety rigidity and the like in the prior art are fundamentally solved, and high-speed, high-precision and high-reliability multi-channel light source control is realized.

A device includes a multiple communication lanes including a first portion of lanes and a second portion of lanes, and control logic coupled to the communication lanes. The control logic is to receive an indication that a first lane of the first portion of lanes is damaged, determine a first index of the first lane of the first portion of lanes, determine a second index of a second lane of the second portion of lanes responsive to the indication that the first lane of the first portion of lanes is damaged, convert a first lane mapping of the plurality of communication lanes to a second lane mapping of the communication lanes based on the first index and the second index, and cause first communication data to be transmitted via the communication lanes based on the second lane mapping.

A short-range communications apparatus, a chip, and a control method are disclosed. The apparatus includes: a gain unit, coupled to an antenna; a first radio frequency (RF) receive channel, coupled to the gain unit; a first baseband processor, coupled to the first RF receive channel, and configured to receive a first signal from the antenna through the first RF receive channel; a second RF receive channel, coupled to the gain unit; and a second baseband processor, coupled to the second RF receive channel, and configured to receive a second signal from the antenna through the second RF receive channel.

This invention relates to the field of automatic control, and more particularly to a calibration method for the image axis and gyroscope axis of an optoelectronic platform. The method includes: mounting an optoelectronic seeker on a three-dimensional turntable and establishing target tracking; controlling the roll, pitch, and yaw channels of the three-dimensional turntable to perform sinusoidal motion at specific frequencies, simultaneously recording the line-of-sight angular velocity data output by the seeker; calculating the influence factor of each mechanical axis motion on the image axis through spectral analysis of the angular velocity data; finally, constructing a compensation matrix using the influence factor to correct the original gyroscope feedback angular velocity, and using the corrected angular velocity for servo control. This invention abandons the traditional method relying on high-precision machining and optical equipment calibration, achieving high-precision calibration through purely electrical and algorithmic means. It effectively eliminates line-of-sight angular velocity errors and channel coupling caused by axis non-parallelism, significantly improving system performance while greatly reducing cost and assembly complexity.

A radio frequency coil device and array for ultrahigh field magnetic resonance imaging comprises a coaxial dipole antenna and a dielectric resonator antenna which work in a collaborative excitation mode, and the coaxial dipole antenna is in a circular ring shape or a rectangular ring shape and is provided with a first radio frequency port; the dielectric resonator antenna comprises a dielectric resonator and a coupling coil, the dielectric resonator, the coupling coil and the coaxial dipole antenna are sequentially distributed in parallel at intervals along the Y axis, the coupling coil is provided with a second radio frequency port, and the dielectric resonator forms a resonant cavity and realizes energy coupling with the coaxial dipole antenna through the coupling coil; excitation signals are respectively applied to the first radio frequency port and the second radio frequency port, so that the coaxial dipole antenna and the dielectric resonator antenna respectively generate orthogonal electromagnetic field distribution, and low-channel coupling is realized. Through the collaborative excitation mode and the orthogonal electromagnetic field distribution design, coupling between channels is effectively reduced, the B1 + field uniformity is improved, meanwhile, the peak SAR is reduced, and the imaging efficiency and safety are improved.

The optical coupling device (200) comprises a plurality of input channels (201, 202, 203, 204); a plurality of output channels (291, 292, 293, 294); and a plurality of coupling channels. Each coupling channel is configured to couple an input channel to an output channel. The plurality of coupling channels includes an amplitude modulator configured to adjust an amplitude of the optical signal.

Provided is a multi-channel actuator for driving a low-side device. The actuator includes a controller that receives a first command for driving a low-side device and outputs data representative of the first command. The actuator includes a driving circuit having a plurality of detection and driving stages. The plurality of detection and driving stages are operative to be coupled to a plurality of channels of the low-side device, respectively. The driving circuit receives the data representative of the first command and causes a detection and driving stage of the plurality of detection and driving stages to drive a respective channel of the low-side device in accordance with the first command.

A liquid ejecting apparatus includes: a liquid ejecting head configured to eject a liquid; and a flow channel member including a flow channel coupling member detachably coupled to the liquid ejecting head, a supply channel coupled to a flow channel inside the flow channel coupling member, and a displacement member configured to be displaced between a closing position at which the displacement member closes the supply channel and an opening position at which the displacement member opens the supply channel. The displacement member restricts disconnection of coupling between the liquid ejecting head and the flow channel coupling member when the displacement member is located at the opening position. The displacement member does not restrict disconnection of coupling between the liquid ejecting head and the flow channel coupling member when the displacement member is located at the closing position.

The invention discloses an artificial surface plasmon transmission line structure for realizing ultra-wideband crosstalk suppression. An interdigital structure is introduced into the design of a transmission line, so that the dispersion characteristic of electromagnetic waves is effectively regulated and controlled, and the coupling effect of adjacent channels is inhibited. The transmission line structure comprises an artificial surface plasmon transmission line, a matching transition structure and a microstrip line. The microstrip line is arranged at the tail end of the transmission line and is connected with the artificial surface plasmon transmission line through a matching transition structure, the artificial surface plasmon transmission line comprises a plurality of cascaded artificial surface plasmon units, and part of the artificial surface plasmon units adopt interdigital structures. According to the transmission line, while the compact structure and the simple design are kept, the excellent performance of low crosstalk, miniaturization and broadband is realized, and the stability of high-frequency signal transmission and the system integration efficiency are effectively improved.

The application discloses a DNA molecule manipulation chip based on electric field and bending micro-channel coupling driving, which comprises a glass substrate and a structure layer, the structure layer is arranged on the glass substrate, at least one group of micro-fluid systems are arranged in the structure layer, two ends of the micro-fluid system are respectively communicated with a liquid inlet hole and a liquid outlet hole, the liquid inlet hole and the liquid outlet hole are vertically arranged through the structure layer, electrodes are respectively inserted into the liquid inlet hole and the liquid outlet hole, and the electrodes are used for applying direct current voltage to generate a spatial non-uniform electric field; a control method applied to the chip comprises the following steps: chip pretreatment, application of driving electric field, DNA molecule acceleration and polarization, DNA molecule positive dielectrophoresis focusing and migration; the application realizes high-efficiency mechanical-free focusing of the DNA molecules, and greatly improves the precision of subsequent optical detection and separation.

The invention provides a photoelectric interconnection module high-precision assembling and multi-channel coupling method, and relates to the technical field of optical communication, and the method comprises the following steps: setting an optical positioning mark point on an optical waveguide substrate or chip, and assembling an insulating positioning gasket between a PCB adapter plate and the optical waveguide / chip; capturing an optical positioning mark point through a visual system to realize reference positioning; the multi-degree-of-freedom displacement table is controlled to adjust the posture of the optical waveguide, a light-emitting device on the chip side is driven to emit light, and optimal alignment of the optical waveguide and the chip grating coupler is completed in combination with light receiving power detected by the detector; after alignment, the optical waveguide is fixed, and an insulating positioning gasket maintains a coupling gap and provides anti-collision protection; according to the invention, through the combination of visual auxiliary alignment and multi-degree-of-freedom precise adjustment, the traditional blind adjustment operation is converted into visual precise regulation and control, the alignment process is greatly simplified, the dependence on the experience of operators is reduced, and the overall time consumption of single-channel alignment is effectively shortened.

The invention discloses an optical interface structure of an integrated photonic chip for a fiber-optic gyroscope and an optical coupling method, and belongs to the technical field of integrated optics and optical fiber sensing. All input and output ports of the integrated photon chip are arranged on a coupling end face on the same side of the chip, the ports comprise at least two signal ports and two auxiliary ports, the signal ports are used for connecting tail fibers of polarization maintaining fiber rings of all measuring axes of the fiber-optic gyroscope, and the auxiliary ports are connected with a through type auxiliary coupling optical channel in the chip; each port is integrated with a spot size adaptation unit, and the spot size adaptation unit is used for matching the spot size of the polarization maintaining optical fiber and the chip waveguide; the integrated photon chip realizes single-side end face alignment coupling with the multi-channel polarization-maintaining optical fiber array through the coupling end face, tail fibers of polarization-maintaining optical fiber rings of all measuring axes of the optical fiber gyroscope are directly solidified in the multi-channel polarization-maintaining optical fiber array, a head channel and a tail channel of the multi-channel polarization-maintaining optical fiber array are aligned with two auxiliary ports of the chip respectively, and no extra welding link is needed. According to the invention, the problems of dispersed channel-by-channel coupling of optical interfaces, complex alignment of two-side FAs, large dual-link coupling loss, serious polarization cross coupling and uncontrollable coupling quality are solved, the overall precision and environmental stability of the fiber-optic gyroscope are remarkably improved, the method is suitable for various fiber-optic gyroscopes with single axes, multiple axes and the like, and the system integration level and the assembly consistency are remarkably improved.

The invention discloses a reusable core particle interposer for the industrial control field, which is characterized in that the surface of the interposer is arranged in an asymmetrical interconnection mode and is divided into a plurality of slot areas, each slot area is allocated with a slot type, each slot area is uniformly provided with a plurality of functional areas, and each functional area can be allocated with a functional type; and an eFPGA and an interconnection channel are embedded in the interposer, the eFPGA is coupled with the interconnection channel, and the interconnection channel is arranged among a plurality of slot areas in a hierarchical interconnection mode. According to the invention, the differentiated communication requirement of the industrial control system of the master-slave architecture is met by adopting the non-peer interconnection architecture, the fragmentation customization requirement of the specific application is met by embedding the eFPGA, and the interconnection requirements of different levels with respective characteristics are met by hierarchical interconnection; and a uniform slot with a downward compatibility characteristic is designed, so that the flexibility during core particle integration is improved, and the application performance requirement and the scene adaptation requirement in the industrial control field can be met at the same time.

A data transmission controller including a first master, a second master, a first slave, a second slave, a plurality of channels, a direct memory access (DMA) controller, a first command converter, and a second command converter is provided. The channels are coupled to the first or second master. The DMA controller is configured to receive a plurality of first commands, and to transmit the first commands to the channels corresponding to different data flow directions in order to transmit the first commands to the first or second master. The first and second command converters are respectively connected to the first and second slave, and are respectively connected to the second and first master through the channels. The first and second command converters are configured to convert original commands into a plurality of second commands with DMA mode.

The invention provides a high-flux Knudsen pump based on macro-micro multi-channel coupling and a design method thereof, and relates to the technical field of micro-nano scale rarefied gas transportation and micro gas pump devices. According to the Knudsen pump, a plurality of parallel and identical micro-channels are connected to a macro-channel in series, a linearly-rising temperature gradient exists along the wall faces of the micro-channels, a linearly-falling temperature gradient exists along the wall faces of the macro-channels, the low-temperature ends of the micro-channels are gas input ends, and the high-temperature ends of the micro-channels are directly connected with the high-temperature ends of the macro-channels. And the low-temperature end of the macro channel is a gas output end. According to the method, the series-parallel hybrid topology of the macro channel and the multiple micro channels can be definitely limited, a geometric parameter design principle is given, and the critical scale ratio acrit is definitely defined, so that whether the resistance of the macro channel can be ignored or not is judged, whether parallel expansion can reach ideal linear expandability or not is judged, and the total mass flow rate is improved. And the capability of maintaining relatively high pressure difference is improved.

The invention provides a multi-band optical transmission system channel waveform modeling method and system based on attention gating LSTM. The method comprises the following steps: constructing a multi-band coherent optical wavelength division multiplexing transmission simulation system; generating an input / output signal pair based on a simulation system to construct an original data set; performing signal channel decoupling and preprocessing to obtain a single-channel data set; constructing a time sequence sample by using a sliding window; constructing an attention gating LSTM model and training the attention gating LSTM model; and calling the trained model to perform channel modeling reasoning. According to the invention, the problems of complex channel coupling in multiband optical transmission and low modeling efficiency of a traditional model are solved.

The application relates to the field of optical communication power control, and discloses a multi-channel coupling light source power control method, equipment and a storage medium. The method comprises the following steps: a power control system sends an initial current signal to a current output source; the current output source outputs a current to a laser diode cluster based on the initial current signal; the laser diode cluster generates a light source electrical signal; an operational amplifier generates an amplified electrical signal; the power control system converts the amplified electrical signal into optical power; a target power is dynamically corrected to obtain a power dynamic threshold; it is judged whether the optical power is less than the power dynamic threshold; when the optical power is less than the power dynamic threshold, the initial current signal is increased to obtain an enhanced current signal; and the current output source adjusts the current output to the laser diode cluster based on the enhanced current signal. In the embodiment of the application, the dynamic threshold analyzes the optical power to adjust the output current, and the equipment can maintain high control precision and avoid crosstalk in different working states.

The invention relates to the technical field of data processing, in particular to an intelligent calculation center energy consumption prediction method and device, equipment and a storage medium, and the method comprises the steps: obtaining multi-dimensional data; performing data alignment and cleaning processing on the multi-dimensional data; obtaining a dual-channel coupling prediction model; predicting and outputting a predicted value based on the multi-dimensional data and the dual-channel coupling prediction model; and outputting a control signal based on the predicted value. The method has the effect of accurately predicting the energy consumption.

This invention discloses a magnetic field-excited electromagnetically induced transparency-like device and method. The device includes two opposing FR-4 dielectric substrates and a metal-etched resonant structure fixed to the surface of the FR-4 substrates. The metal resonant structure includes a copper double U-shaped ring resonant structure and a double circular ring resonant structure. Both the double U-shaped ring resonator and the double circular ring resonator are excited by incident electromagnetic waves. The incident electric field direction is symmetrical to the structure, and the incident magnetic field direction is perpendicular to the surface of the dielectric substrate. Both the double U-shaped ring structure and the double circular ring structure are excited by the incident magnetic field, but with different coupling strengths, forming a bright-mode-bright-mode coupling. This invention features a bright-mode-bright-mode channel coupling method with simultaneous magnetic field excitation. By using two resonant structures with different coupling strengths to the electromagnetic field, a two-layer electromagnetically induced transparency-like device with large group time delay and high sensitivity is obtained.

A depletion-mode current source having a saturation current of sufficient accuracy for use as a pre-charge circuit in a start-up circuit of an AC-to-DC power converter is fabricated using an enhancement-mode-only process. The depletion-mode current source can be fabricated on the same integrated circuit (IC) as a gallium nitride field-effect transistor (FET) and resistive and capacitive components used in the start-up circuit, without affecting the enhancement-mode-only fabrication process by requiring additional masks or materials, as would be required to fabricate a depletion-mode FET on the same IC as an enhancement-mode FET. The current source includes a resistive patterned two-dimensional electron gas (2DEG) or two-dimensional hole gas (2DHG) channel coupled between two terminals and one or more metal field plates extending from one of the terminals and overlying the patterned area of the channel, the field plates being separated from the channel and from each other by dielectric layers.

A coupler for an acoustic device includes a main opening for inserting the acoustic device or an adapter for the acoustic device. The coupler also includes a main channel connected at one end to the main opening. The coupler further includes one or more leakage paths for allowing sound to escape the main channel when in use. The coupler additionally includes one or more acoustic resonators connected to the main channel. The one or more acoustic resonators includes a first acoustic resonator configured to have a fundamental resonance frequency in the range of 500 Hz to 1 kHz and a second acoustic resonator configured to have a fundamental resonance frequency in the range of 3.85 kHz to 5 kHz.

The invention relates to the technical field of metal rolling linear control, in particular to a linear repetition process sliding mode control method and system based on event triggering. According to the control method, a linear repetitive process model, a cyclic scheduling mechanism, a dynamic event triggering mechanism and a sliding mode control strategy are combined, so that the problem that stability, real-time performance and energy consumption are difficult to consider under the scenes of strong channel coupling, large mismatching disturbance, high communication load, internal and external dual-dimensional dynamic coupling of the channel and the like in a traditional control method is solved; and the stability, the control precision and the communication efficiency of the repeated industrial process in a complex environment are improved.

The invention relates to the technical field of industrial control, and particularly discloses a microfluidic hydrogenation reaction-oriented industrial control system parameter optimization method and system, and the method comprises the steps: obtaining in-channel reaction parameters, inter-channel coupling parameters and load state parameters of a multichannel microfluidic reactor, and carrying out the preprocessing to obtain feature data; and inputting the feature data into a pre-constructed hybrid prediction model, and predicting the reaction state change of each channel and the coupling interference between the channels. According to the method, a mechanism equation + data compensation network hybrid prediction model is constructed, and a dual-target adaptive tradeoff mechanism is introduced, so that accurate prediction and control priority dynamic matching of a multichannel microfluidic reaction state and coupling interference are realized; aiming at the problem of local physical degradation, the system creatively disassembles a coupling equation in a spatial dimension and introduces heat transfer retardation and flow resistance surge penalty factors, so that the conflict that global smooth prediction covers local extreme mutation is effectively solved.

The invention discloses a self-noise decoupling calibration method based on signal pattern recognition and self-supervised learning, and aims to solve the problem of calibration mutual pollution caused by cross-channel coupling of self-noise in a multi-axis multi-channel acquisition system. According to the method, windowing processing is carried out on multi-channel original signals, signal mode recognition is carried out to obtain mode identification and mode confidence, window signals and mode information are input into a self-supervision neural state space model to construct self-supervision loss, and gating updating is carried out according to the mode confidence; a coupling base matrix, a mode correction matrix and a drift correction matrix are maintained online and superposed to obtain a layered coupling matrix, reversibility and stability constraints are further applied to form a constrained coupling matrix, and coupling components of each channel are calculated and deducted based on the matrix to realize decoupling calibration. And self-inspection is carried out through correlation detection, coherence detection, frequency spectrum form change detection and condition number detection, and a previous effective coupling matrix is returned in case of abnormality, so that the technical effects of robust online calibration of time-varying coupling, reduction of cross-channel crosstalk and improvement of multi-channel output consistency and reliability are realized.