33 results about "Hybrid array" patented technology

The invention relates to a nonlinear ultrasonic guided wave phased array imaging method based on mixed array elements and time reversal. The method comprises the following steps: exciting a fundamental wave and receiving a second harmonic wave at piezoelectric array elements of the fundamental wave and the second harmonic wave of an ultrasonic guided wave by using a center frequency respectively; full-matrix data of ultrasonic guided wave signals in the detected workpiece are obtained in a one-transmitting and one-receiving mode; a fundamental wave signal is suppressed and a second harmonic signal is enhanced by adopting a pulse inversion mode; for the full-matrix data after pulse inversion, utilizing continuous wavelet transform filtering to extract a second harmonic signal; respectively calculating the distance from the discretized imaging area to the excitation array element and the distance from the discretized imaging area to the receiving array element; and for each discrete pixel point, according to an excitation signal of a distance forward propagation fundamental wave and a received second harmonic signal back propagation, a pixel value is calculated by using a time domain topology energy equation, and local acoustic nonlinear imaging of the plate-shaped structure is realized.

The invention relates to the technical field of renewable energy hydrogen production and intelligent control, discloses a multi-target prediction control method and system based on an ALK-PEM hybrid electrolytic cell array, and solves the problems that in the prior art, wind and light power generation fluctuation cannot be deeply adapted, and hydrogen production economy, response speed and long-term reliability of equipment are difficult to consider. According to the scheme, the method comprises the following steps: obtaining wind-solar power generation power prediction data, and operating parameters and health state indexes of each ALK and PEM in a hybrid array to form a time sequence data set; a hybrid array prediction model based on data driving is constructed, a multi-target cost function is constructed by taking maximization of wind and light absorption, stable hydrogen production and minimization of equipment life loss as targets, rolling optimization is performed on the model, and an optimal power set point sequence of each electrolytic cell in a future preset time domain is solved; and in combination with the operating characteristic difference of the ALK and the PEM, a differential control instruction is generated and executed, and meanwhile, dynamic grouping management is performed on the hybrid array according to the wind-solar power prediction data and the health state of the electrolytic cell.

The invention discloses a manifold optimization transmitting directional diagram synthesis method for an analog digital hybrid array. According to the manifold optimization transmitting directional diagram synthesis method for the analog digital hybrid array, the HAD array transmitting directional diagram synthesis problem with the criterion of minimizing the matching error between an expected beam directional diagram and an actual beam directional diagram is researched. According to the method, the solution is carried out by utilizing block coordinate descent (BCD) and Riemannian manifold optimization. Firstly, a constant modulus auxiliary variable is introduced to equivalently represent that an objective function is a smooth biquadratic function; then, alternately optimizing a scaling factor, a digital weight, a simulation weight and a constant modulus auxiliary variable under a BCD framework, reexpressing the simulation weight and the auxiliary variable as a quadratic programming problem under constant modulus constraint, and solving through a Riemannian gradient descent method; the globally optimal solution of the digital weight is obtained through a Lagrange multiplier method. A numerical result shows that compared with other representative algorithms, the algorithm provided by the invention has better beam matching performance.

The invention discloses a main lobe gain maximization method for an analog-digital hybrid array of a radar communication system. According to the method, the ratio of the maximum minimum main lobe level to the peak side lobe level is used as a target function, and under the main lobe ripple constraint, the simulation weight constant modulus constraint and the digital weight power constraint, the ADMM (Alternating Direction of Multiplexing) is used for carrying out joint design on the simulation weight and the digital weight. In the ADMM framework, a Riemann conjugate gradient method is adopted to solve a simulation weight subproblem with constant modulus constraint; and solving a digital weight by adopting a Lagrange multiplier method. A numerical result shows that the method can generate better main lobe ripples and lower peak side lobe level, and has good beam directional diagram accurate control performance.

The invention provides an embedded digital-analog hybrid array system and method based on modular mosaic units. The method comprises the steps that a tested radar transmits a radar signal in a real-time coupling mode; the cluster scene mapping unit resolves cluster scene time-space-spectrum-energy information under the unified coordinate system in real time and generates corresponding control parameters; the digital-analog hybrid system control unit calculates array control parameters of the analog array and the digital array according to the control parameters; the digital-analog mixing unit completes cluster scene simulation according to the array control parameters and completes cluster target characteristic dynamic simulation; and the computer real-time control unit controls the working time sequence and information interaction of other modules in real time according to the input signal, solves a three-axis control instruction of the flight turntable in real time, and sends the instruction to the cluster scene mapping unit and the flight turntable. According to the invention, cluster target simulation is completed through an embedded digital array, and dynamic simulation of electromagnetic characteristics of a cluster complex scene is rapidly realized.

The application provides a flash / SCM hybrid array method based on data reference rate, and relates to the field of computer storage. A RAID4 architecture for storing data in flash memory and storing check information in a new storage medium SCM is constructed, comprising: (1) initialization: the host module first initializes the flash memory and the SCM, and then initializes the metadata; (2) read / write request processing: after the first step of initialization, after receiving a read / write request, entering a read / write request processing module, which processes the read / write request initiated by the user; (3) data recovery: after the first step of initialization, after receiving a data recovery request, entering a data recovery module, which completes the data recovery work; (4) strip-based garbage collection; using the characteristics that the SCM has better durability and read / write performance than the flash medium, the overall performance of the storage system is improved. Using a strip-based garbage collection strategy, data blocks with high reference times are stored in the same strip, reducing write amplification.

The invention discloses a compact dual-band Van Atta array antenna for dual-band backward RCS enhancement, and relates to the technical field of RCS backward enhancement and dual-band antennas. In the present invention, all single-port single-band antennas and single-port dual-band antennas are provided with a corresponding power divider in the dual-band feeding network, and the two output ends of each power divider are connected to the antenna through metal through holes. Each antenna is fed through a port. Thanks to the above-mentioned hybrid array and the design of single-port feeding of all antennas, the number of transmission lines in the antenna unit and the feeding network is effectively reduced. The present invention reduces the number of transmission lines in the antenna unit and the feeding network by using these two antenna hybrid array methods, solves the problem of the large size and complex design of the dual-band Van Atta array, and realizes the compact design of the dual-band Van Atta array.

The invention provides a storage, multiplication and accumulation circuit of a capacitance coupling memristor array. The storage, multiplication and accumulation circuit comprises an input decoding circuit, a pulse current generating circuit, a memristor mixed array circuit and an analog-to-digital conversion circuit which are connected in sequence, wherein the memristor hybrid array circuit is composed of a plurality of memristor hybrid array units; the memristor hybrid array unit comprises a transistor, a memristor and a capacitor; wherein one end of the capacitor is connected with the source electrode of the transistor, the other end of the capacitor is connected to one end of the common bit line, and the other end of the common bit line is connected with the analog-to-digital conversion circuit. The capacitor is coupled to the memristor array, the memristor hybrid array basic unit is constructed, and then the hybrid array circuit is formed, so that the accumulated magnitude of current during concurrence of the memristor array can be greatly reduced, the calculation efficiency is improved, and a peripheral digital circuit is simplified.

The specification discloses an analog-digital hybrid array space anti-interference method based on alternating optimization, relates to the technical field of anti-interference, and comprises the following steps: constructing a first optimization problem based on a hybrid array antenna structure, a digital formed vector and an analog formed vector; solving the first optimization problem by using a quasi-Newton method to obtain an optimal beam weight vector; constructing a second optimization problem based on the optimal beam weight vector, the digital formed vector and the analog formed vector; and solving the second optimization problem by using an alternating optimization algorithm to obtain an optimal digital formed vector and an optimal analog formed vector, so as to solve the problem that the current analog-digital hybrid array anti-interference method has low anti-interference capability in the anti-interference scene of a high-mobility platform with limited receiving antenna elements and a large number of interferences.

Provided in the present application is a vision sensor chip based on a hybrid array. The vision sensor chip comprises a pixel array and a vision sensing path arranged corresponding to the pixel array, wherein the vision sensing path comprises an intensity path, a time difference path and a space difference path; the pixel array comprises a plurality of multiplexed pixel units and a plurality of single pixel units; each multiplexed pixel unit is a pixel unit multiplexed by two elements from among intensity, time difference and space difference; each single pixel unit is a pixel unit having an element different from the elements of the multiplexed pixel unit; the intensity path is used for determining a quantized value after incident light intensity is converted into an electrical signal; the time difference path is used for determining a time difference value; and the space difference path is used for determining a space difference value. In the present application, by means of a three-path vision sensing chip architecture based on a hybrid array, the sensing capability of a vision sensor chip regarding space-time dynamic information can be greatly improved, and high-precision, high-frame-rate, high-dynamic-range, efficient and robust vision representation is realized.

The method of acousto-optic imaging may include receiving a first signal from a first subaperture of the sensor array. The first subaperture may include one or more array elements of a first type. The method may further include receiving a second signal from a second subaperture of the sensor array. The second subaperture may include one or more array elements of a second type different from the first type. In some variations, the first type of array element may be an acoustic transducer (e.g., a piezoelectric transducer) and / or the second type of array element may be an optical sensor (e.g., an optical resonator such as a whispering gallery mode (WGM) resonator). The method may further include combining the first signal and the second signal to form a synthetic aperture of the sensor array.

The invention discloses a transmitting directional diagram accurate control method for an analog-digital hybrid array. The method comprises the following steps: taking a ratio of a maximum minimum main lobe level to a peak side lobe level as a target function, and under main lobe ripple constraint, simulation weight constant modulus constraint and digital weight power constraint, carrying out joint design on a simulation weight and a digital weight by utilizing an ADPM (Alternating Directional Penalty Method). In the ADPM framework, a backtracking projection gradient descent method is adopted to solve a simulation weight subproblem with constant modulus constraint; and solving a digital weight by adopting a Lagrange multiplier method. A numerical result shows that the method can generate better main lobe ripples and lower peak side lobe level, and has good beam directional diagram accurate control performance.

An apparatus for imaging a target and a process for manufacturing the apparatus are provided. The device includes a housing and a distal end portion. The distal portion includes an acoustic sub-array on the first substrate configured to emit an acoustic signal to a target. The distal portion includes an optical sub-array on the second substrate configured to detect an acoustic signal from a target. The distal portion includes an input / output (I / O) region including one or more optical I / O channels. The one or more optical I / O channels are configured to bend optical signals between the optical sub-array and the one or more optical I / O channels.

The invention discloses an encryption / decryption device. The encryption / decryption device comprises a bit group replacement / anti-bit group replacement unit, a mixed row / anti-mixed row unit, a first verification unit and a controller, the bit group replacement / anti-bit group replacement unit converts an input state array to generate an output state array. The hybrid line / inverse hybrid line unit performs hybrid line operation / inverse hybrid line operation on the output state array to generate a hybrid / inverse hybrid array, wherein the hybrid line operation / inverse hybrid line operation comprises binary field multiplication operation. The first verification unit determines whether the output state array and the hybrid / anti-hybrid array conform to the corresponding relationship, and generates a first verification signal. The controller determines whether the binary field multiplication performed by the hybrid row / inverse hybrid row unit is correct according to the first verification signal.

Systems and methods may be used to reconstruct particle velocity wavefields from coupling-calibrated fiber-optic data that subsequently enables physically valid construction of the particle velocity wavefields for a hybrid sensor array including both fiber-optic and particle motion sensors. These systems and methods may be used in a variety of borehole geophysical applications, such as structure and reservoir imaging, impedance inversion, attenuation tomography, micro-seismic fracture imaging, focal mechanism analysis, and so on. The systems and methods may also be used in other applications such as geothermal and CO2 storage monitoring.

The invention discloses a hybrid array arrangement design method for an intelligent reflecting surface, belongs to the technical field of wireless communication, and solves the technical problem of poor performance of an existing hybrid intelligent reflecting surface. The method comprises the following steps: step 1, determining an index 1: enabling a reflection phase of an active unit to be close to a reflection phase of one state of a passive unit; step 2, determining an index 2, wherein the index 2 is that an active unit is placed at a corresponding position according to a codebook so as to maintain a relatively high beam forming capability in a low power consumption state; 3, orderly arranging the active units and the passive units in advance according to the index I and the index II; and 4, carrying out analog simulation on the arranged active units and passive units, and adjusting the number of the active units and the number of the passive units according to a simulation result, so that the arranged active units and the arranged passive units meet the index I and the index II. And the beam forming capability of the array in a low-power-consumption mode is effectively improved, and meanwhile, the signal gain during active work is not influenced.

The application provides a radar anti-jamming beam forming method based on an analog-digital hybrid MIMO array, comprising: constructing an array model and estimating array errors according to array element arrangement and target observation angle; generating a transmitting and receiving calibration matrix by using a least square-based transmitting-receiving separation calibration method; dividing the transmitting array into multiple sub-arrays and making the multiple sub-arrays transmit orthogonal waveforms; calibrating the phases of the array elements in the multiple sub-arrays according to the transmitting calibration matrix, and realizing beam forming by transmitting coherent signals; separating and extracting echo signals of each sub-array from the received signals by using a waveform decoding technology, and calibrating the amplitudes and phases of the echo signals by using the receiving calibration matrix; controlling the echo sidelobe level of the calibrated receiving array by using a window function, and adjusting the beam pointing direction by using the receiving end beam forming. The application can enhance the adaptability and anti-jamming capability of the radar in a complex environment, improve the radar detection probability and reduce the false alarm probability.

The invention discloses an ultra-wideband hybrid array calibration system and calibration method, and belongs to the field of phased-array antennae. A gating switch is added between a receiving component and a down-conversion to control the on-off of a radio frequency receiving channel; by controlling the on-off of the gating switch of each row, firstly, the amplitude and phase values of each path are simultaneously collected according to the row, then, the amplitude and phase values of channels in different columns and different rows are collected, finally, the amplitude and phase difference values of all channels and the first row and the first column are obtained through conversion, and a phase shifter or a time delayer in the receiving assembly is used for carrying out analog receiving channel calibration. After analog receiving channel calibration is completed, all channel gating switches are turned on, amplitude and phase values of N columns are collected, and intermediate frequency and digital channel calibration is completed according to the collection result. According to the invention, the contradiction between synchronous acquisition and independent measurement of multiple analog channels in the digital-analog hybrid array is solved, the amplitude-phase calibration of the analog channels and the digital channels is completed respectively, and the stable performance of the array is ensured.

A design methodology known as "SHAPE" (Simple Hybrid Array of Processing Elements) is disclosed for developing Zetta-scale computing engines on early-access semiconductor nodes. The method circumvents the latency of standard PDK development by utilizing "Surrogate Design Rules" - simplified, conservative geometric constraints derived from lithography limits - and manual, transistor-level layout of repeating processing elements. By avoiding standard cell libraries and automated P&R tools, the methodology achieves higher density and enables tape- out months before the official process release. Complexity and the availability of standard cell libraries and semiconductor IP is managed by vertically stacking the advanced node logic die (via hybrid bonding) atop a robust, mature-node interface die that handles critical I / O and power functions, allowing for the rapid deployment of "bleeding-edge" silicon in a functioning system.

The application provides a large-scale analog-digital hybrid array receiving link construction method, and relates to the technical field of wireless communication.The subarray weight information is calculated according to the beam pointing parameter and the geometric information of the reference subarray; the subarray weight information corresponding to the reference subarray is tiled according to the whole array structure corresponding to the multiple radio frequency signals to obtain the whole array weight control quantity; the multiple radio frequency signals are weighted and summed according to the whole array weight control quantity to obtain the weighted radio frequency signal; the baseband signal conversion processing is performed on the weighted radio frequency signal to obtain the digital baseband IQ signal; the digital weighted signal is generated according to the beam pointing parameter and the digital channel array geometric parameter corresponding to the digital baseband IQ signal; and the digital baseband IQ signal is weighted and summed by using the digital weighted signal to obtain the evaluation result of the beam direction diagram signal.The simulation accuracy and the actual system performance prediction consistency are greatly improved.

This invention discloses a method for maximizing the main lobe gain of a hybrid analog-digital array used in radar communication systems. The invention investigates a method for jointly designing analog and digital weights using an alternating direction method of multipliers (ADMM) framework, with the objective function being the maximization of the ratio of the minimum main lobe level to the peak sidelobe level. Under constraints of main lobe ripple, constant modulus constraint on analog weights, and power constraint on digital weights, the Riemann conjugate gradient method is used to solve the analog weight subproblem with constant modulus constraint; the Lagrange multiplier method is used to solve the digital weights. Numerical results show that the method of this invention can produce good main lobe ripple and low peak sidelobe levels, exhibiting excellent beam pattern control performance.

The invention discloses a dual-frequency dual-port directional diagram reconfigurable antenna loaded with a parasitic structure, which relates to the technical field of reconfigurable antennas and comprises a dielectric substrate, two pairs of printed dipole antennas, a feed network and the parasitic structure, wherein the two pairs of printed dipole antennas are orthogonally arranged on the dielectric substrate and are respectively connected to the feed port I and the feed port II; the feed network comprises a central micro-strip feeder line and parallel metal strip lines; the parasitic structure is composed of a mixed array of square metal units and isosceles right triangle metal units, all the units are arranged at equal intervals, the array is symmetrically arranged relative to the printed dipole, and a preset coupling interval is kept between the array and the printed dipole. According to the invention, two pairs of orthogonally placed printed dipole antennas are used for dual-port feeding, azimuth angle plane wave beam switching is realized, and functions are realized flexibly.

A method for generating a vector vortex beam hybrid array based on a super-structure surface is characterized by comprising the following steps: S1, generating a laser beam through a laser, and generating a linearly polarized beam after passing through a polarizer; s2, enabling the linearly polarized light beam to enter the surface of the metasurface; and S3, the metasurface converts the left-handed circular polarization component and the right-handed circular polarization component of the incident light into scalar vortex beam arrays, and generates a vector vortex beam hybrid array in a momentum space through linear superposition. Extra optical elements are not needed, the system structure is compact, and optical aberration is not prone to occurring; independent regulation and control of polarization, orbital angular momentum, amplitude and phase of each light beam unit can be realized; and a flexible and efficient structured light field generation platform is provided for applications such as multi-particle control, high-dimensional quantum communication and high-capacity light information processing.

The invention relates to the technical field of array antennas, in particular to a hidden 4G / 5G / WiFi hybrid array antenna, which mainly comprises a lower shell, an upper shell mounted on the top surface of the lower shell, mounting shells arranged on two sides of the lower shell, a plurality of baffles mounted on the inner walls of the mounting shells, and a connecting mechanism arranged in the lower shell and comprising an aggregation mainboard positioned in the lower shell, the fixing mechanism is arranged above the lower shell, and the locking mechanisms are arranged on the two sides of the lower shell. A pull block is pulled to drive a clamping column to move, the clamping column drives a moving sleeve to move, the moving sleeve extrudes a second elastic piece, after the clamping column moves out of a clamping hole, a mounting shell is pulled, then the mounting shell can be taken down from a first limiting frame and a second limiting frame, a lower shell is pressed, an upper shell is pulled, and the upper shell drives the clamping block to move out of the inner wall of a groove body. Therefore, the upper shell and the lower shell are separated, internal components can be maintained, the operation is convenient, the time spent on disassembly is less, and the maintenance efficiency is improved.

The application discloses a transmit pattern accurate control method for a digital-analog hybrid array. A target function of maximizing a ratio of a minimum main lobe level to a peak side lobe level is researched, and under main lobe ripple constraint, analog weight constant modulus constraint and digital weight power constraint, analog weight and digital weight are jointly designed by using an alternating direction penalty method (ADPM). In the ADPM framework, a backtracking projection gradient descent method is adopted to solve an analog weight sub-problem with constant modulus constraint; and a Lagrange multiplier method is adopted to solve digital weight. Numerical results show that the method can produce better main lobe ripple and lower peak side lobe level, and has good beam pattern accurate control performance.

The application discloses a high-precision in-memory computing method and system based on an optoelectronic hybrid array, and is suitable for the optoelectronic hybrid array; wherein the method comprises the following steps: obtaining a plurality of moduli corresponding to to-be-computed data, and selecting in-memory computing sub-arrays from the optoelectronic hybrid array; obtaining a plurality of weight remainders corresponding to the computing weight according to the moduli, and writing the weight remainders into the corresponding in-memory computing sub-arrays to obtain the in-memory computing array after weight coding; obtaining the input data remainder corresponding to each in-memory computing sub-array according to the moduli and the to-be-computed data, so as to input the input data remainder and a preset optical signal into the in-memory computing array, and obtain the response optical signal output by the in-memory computing array; obtaining the signal power of the response optical signal, and obtaining the phase offset of the response optical signal according to the signal power, so as to obtain the in-memory computing result of the to-be-computed data according to the phase offset, and improve the efficiency of in-memory computing.

The application belongs to the field of wireless communication, and particularly relates to a high-efficiency beam training scheme based on high-frequency auxiliary high-frequency. The application adopts a high-frequency auxiliary high-frequency mode to deploy two arrays, wherein a full-digital array is used for the auxiliary array, and a hybrid array is used for the data transmission array. Since the auxiliary array and the data transmission array are both high-frequency bands, the angular domain information of the auxiliary array and the angular domain information of the data transmission array are reciprocal, that is, the data transmission array can use the angular domain information estimated by the auxiliary array to transmit data. Considering the resource cost, the full-digital array used for assistance adopts a small number of arrays, but the angular information estimated by the small number of arrays cannot be directly used for a large array, because the reciprocity of the angular domain information will be weakened due to the difference in the size of the two arrays, so the large array needs to perform a low-complexity beam training, so that the final angular domain information is more accurate, that is, the beam search is performed based on the angular information estimated by the auxiliary array.

This invention discloses a three-dimensional flexible hybrid magnetic metamaterial structure and design method with magnetic field control, relating to the field of implantable wireless charging technology. The structure includes a -3 and -2 permeability hybrid array, a -2 and 0 permeability hybrid array, and a side-mounted 0 permeability array. Magnetic field focusing and constraint are achieved by arranging the permeability primitives. A design method for the three-dimensional flexible hybrid magnetic metamaterial with magnetic field control is also provided, including (1) constructing a mutual inductance model between coils of different shapes based on the Neumann formula, analyzing the variation law of the coupling coefficient when the coil is offset, and determining the primitive shape as a regular hexagon or rectangle; (2) optimizing the regular hexagonal primitives using a genetic algorithm with transmission efficiency, quality factor, and surface area as objective functions; (3) specifying the optimization objective constraint range; (4) designing rectangular primitives; and (5) matching the equivalent permeability of each primitive to construct the three-dimensional flexible hybrid magnetic metamaterial. This invention improves transmission performance and effectively suppresses magnetic leakage by controlling the system's magnetic field.

The invention provides an anti-interference broadband beam forming method based on an analog-to-digital hybrid array architecture, which comprises the following steps of: dividing an array antenna into M sub-arrays with the same antenna number, and independently connecting different sub-arrays with a radio frequency link and an analog-to-digital converter; each antenna in each sub-array is connected with a phase shifter, the phase shifters adopt the same analog beam forming weighted vector to carry out analog beam forming, and M paths of baseband signals are output after down-conversion of a radio frequency link; performing digital sampling and K-point discrete Fourier transform on each path of baseband signal to obtain M paths of discrete frequency domain sequences; determining a beam forming weighting coefficient corresponding to each frequency point of the M paths of discrete frequency domain sequences, performing weighted combination on each path of discrete frequency domain sequences, and outputting one path of discrete frequency domain sequence; and performing inverse discrete Fourier transform to obtain a discrete time domain sequence. According to the low-complexity broadband beam forming method based on two-stage combination of the analog domain and the digital domain, a large-scale antenna system can form a high-gain space directional narrow beam under the broadband condition.

The invention discloses a piezoelectric sensor electrode structure for three-dimensional force measurement and a polarization method, and belongs to the technical field of mechanical arm touch. Comprising a lower sensitive layer, an isolation layer and an upper rigid-flexible mixed array which are sequentially laminated and are sealed through a packaging structure; the lower sensitive layer is composed of a first lower sensitive unit and a second lower sensitive unit which are perpendicular to each other and share the first middle sensitive layer; the first lower sensing unit comprises a first upper electrode and two independent first lower electrodes, and the electrodes are arranged in a staggered mode in the X-axis direction. The second lower sensing unit comprises a second upper electrode and two independent second lower electrodes, and the electrodes are arranged in a staggered mode in the Y-axis direction; the upper-layer rigid-flexible hybrid array is arranged above the isolation layer and comprises a third lower electrode, a second middle sensitive layer, a distributed upper electrode and a rigid column which are sequentially laminated; the packaging structure comprises a lower surface packaging layer and an upper surface packaging layer and is used for sealing the sensor. The problems that an existing sensor cannot measure three-dimensional force at the same time and interference exists are solved.