26 results about "Array processing" patented technology

The invention relates to the technical field of ultra-precision optical manufacturing, in particular to a fast tool planing method for a micro-lens array, a medium and equipment. The method comprises the steps that a non-interference feasible planing tool is determined according to surface shape data of a micro lens array to be machined; building a parameter physical model of planing fundamental frequency, surface roughness and single unit machining duration based on micro lens unit parameters, cutter parameters and machining parameters; by taking a parameter limiting condition as a nonlinear constraint and the total processing duration as a target function, optimizing and solving fs, Rt, DL and fx to obtain the shortest processing duration; and finishing machining by adopting optimized parameters. According to the method, a multi-physical parameter model is innovatively constructed, collaborative optimization of optical performance (surface shape), process capability (roughness and dynamic characteristics) and manufacturing efficiency (processing time) is realized, nanoscale roughness and dynamic stability are ensured, a large-scale array processing period is remarkably shortened, and an efficient path is provided for batch manufacturing of ultra-precise optical elements.

The invention discloses a multi-source information fusion device and method for a humanoid robot. The device comprises a clock synchronization module and a sensor array processing module. The clock synchronization module is used for generating and distributing a global clock according to a clock source signal of the clock device or clock information of the Ethernet interface, so that the global clock is used as a working clock of the humanoid robot-oriented multi-source information fusion device; the sensor array processing module is used for configuring an interface of the sensor array processing module so as to adapt to a plurality of accessed sensors; and the sensor array processing module is also used for transmitting the global clock to the plurality of sensors and receiving multi-source sensor signals obtained by synchronous sampling of the plurality of sensors. According to the invention, the plurality of sensors are flexibly accessed through the configurable sensor array processing module, and the clock synchronization of the plurality of sensors is realized by combining the clock synchronization module, so that the hardware adaptability and the clock synchronization precision of the plurality of sensors are improved.

Methods and systems are described herein for adaptive beamforming and interference mitigation using a time synchronized scalable cohered on-array processing system (“system”). The system may be a phased array implementing a software-defined radio using multi-input-multi-output antenna elements. The system includes multiple subarray elements which are configured into a tiered array of scalable subarrays that performs intermediary collation, coherence, noise reduction, and adaptive beamforming operations through processor nodes disposed between tiers. The intermediary collation operations process discrete portions of node excitation data to enable the phased array to generate an adaptive beam profile that directs high-directionality beams toward desired targets while adaptively partitioning interference sources between subarray elements. Further, the system makes use of a scalable multidimensional array to provide telecommunication and electromagnetic wave manipulation operations for applications of varying scale.

The invention discloses a single-board multimode sonar device for underwater human body detection. The single-board multimode sonar device comprises a PCB; the PCB is provided with a foresight transducer interface, a side scanning transducer interface and a DVL interface. A pulse driving and transmitting / receiving switching protection circuit, a multi-channel analog front end (AFE), an analog-to-digital converter (ADC), a field programmable gate array (FPGA) processing unit, a peripheral memory of the FPGA processing unit and a high-speed data transmission interface are also integrated on the PCB; the FPGA is configured to perform channel-by-channel matched filtering, envelope detection, whole sampling alignment, fractional sampling delay filtering, delay-and-sum beam forming, motion compensation implemented based on speed or displacement information provided by the multi-beam Doppler velocity measurement interface, and confidence-weighted foresight and side-scan image fusion on echo signals from the ADC. And the fused human body / seabed echo image is output through the high-speed data transmission interface. According to the invention, the pulse driving, the receiving front end and the coherent clock distribution are realized on the same circuit board, and the digital alignment and fusion algorithm is implemented in the FPGA, so that the wiring and phase errors are obviously reduced, and the echo coherence and the motion correction capability are improved.

This invention relates to the field of ultra-precision machining technology, and particularly to a method, medium, and equipment for obtaining the tool entry distance in the machining of large-scale microlens arrays. The method targets the tool positioning point within the aspherical surface region of the microlens unit. It discretizes the tool tip arc into spatial points and maps them to the workpiece coordinate system. The normal vector of each discrete point on the workpiece surface is obtained through the aspherical analytical expression. The absolute value of the inner product between the tool's discrete tangent vector and the workpiece normal vector is calculated, and the point with the minimum value is selected as the true contact point. Based on the Z-coordinate difference of this point, the Z-axis compensation is calculated as the tool entry distance. This method overcomes the limitations of traditional empirical compensation by dynamically reflecting the local contact relationship between the tool and the aspherical surface through the inner product criterion, avoiding systematic errors. Because the radius of the tool tip arc is smaller than the minimum radius of curvature of the microlens, it ensures that the contact point is a unique tangent point, effectively preventing overcutting of concave surfaces or high-curvature regions, and achieving high-precision machining.

Methods and apparatus to estimate cardinality of users represented across multiple bloom filter arrays are disclosed. Examples includes processor circuitry to execute and / or instantiate instructions to generate a first composite Bloom filter array based on first and second Bloom filter arrays. The processor circuitry is to generate a final composite Bloom filter array based on the first composite Bloom filter array and a third Bloom filter array. Different ones of the first, second, and third Bloom filter arrays representative of different sets of users who accessed media. The first, second, and third Bloom filter arrays including differential privacy noise. The processor circuitry to estimate a cardinality of a union of the first, second, and third Bloom filter arrays based on the final composite Bloom filter array.

The invention discloses an energy-saving low-specific-speed multi-channel impeller and a design method thereof, the number N of multiple channels is larger than or equal to 3, and the design method comprises the following steps that (1) the specific speed ns is calculated according to the design flow Q, the design lift H and the design rotating speed n, and ns is smaller than or equal to 100; (2) selecting a proper impeller diameter D, and drawing a flow channel middle line axial plane projection drawing; (3) drawing a spiral line, and projecting to obtain a space center line of the runner; (4) calculating the inlet diameter D1 of the impeller; (5) the impeller inlet area S1 and the impeller outlet width b are calculated; (6) designing the geometric shape of the flow channel on the space center line in a segmented manner; (7) connecting the shape of each section of runner to form a runner curved surface; (8) carrying out annular array processing on the single flow channel; and (9) obtaining an impeller model. According to the multi-channel impeller, the flow channel diffusion degree of the multi-channel impeller can be accurately controlled, and particularly, effective balance and improvement of efficiency and reliability are achieved at the low specific speed.

The application discloses a kind of L array DBF goniometry methods for LFMCW radiation source, the data received by L array is down-converted and extracted filtering in FPGA then according to two-dimensional linear array processing, utilize the advantage of parallel processing of FPGA, when DBF processing, two parallel routes of search and processing are divided, then the idea of two linear arrays and difference beam is FFT processed using the IP of FFT, after the result is converted into single-precision floating-point number, the data in FPGA is transmitted to ARM using the AXI IP of Zynq for subsequent processing and angle conversion.The application utilizes the low data amount DBF processing method, realizes the efficient transmission of data between FPGA and ARM by combining the AXI data line of Zynq series, greatly improves the overall performance of signal processing machine, ensures basic goniometry function while enhancing the real-time processing capability of system.

The utility model relates to a piezoresistance-capacitance composite sensor, which comprises a sensing array, a piezoresistance measuring circuit, a capacitance digital conversion circuit, a switch array and a processing module. Each measuring point in the sensing array is provided with a piezoresistive material which is separated to form an insulation interval, the piezoresistive material of each measuring point is correspondingly provided with a first electrode and a second electrode, the first electrode is reused as a capacitance sensing electrode, the second electrode is used as a near-ground end of the measuring point, and a gating switch is connected in series between the second electrode and the ground; the piezoresistance measuring circuit is respectively coupled with the first electrode and the second electrode of each point position through the switch array, and the capacitance digital conversion circuit is respectively coupled with the first electrode of each point position through the switch array; and the processing module is respectively coupled with the piezoresistance measuring circuit and the capacitance digital conversion circuit, and controls the on-off of each switch. The sensor provided by the utility model is simple and compact in structure, and has high spatial resolution and high sensitivity.

The invention discloses a space non-uniform null depth control method for a satellite anti-interference scene, solves the problems that the null depth is difficult to control and the null is offset and too narrow due to the fact that a traditional uniform array model cannot process phase nonlinearity, and belongs to the technical field of communication and radar signal processing. The method comprises the following steps: acquiring aperiodic two-dimensional coordinates of each array element in a spatial non-uniform array, calculating an array steering vector, defining a main lobe angular domain by taking an expected signal direction as a center based on the steering vector, defining an area except the main lobe angular domain in a scanning range as a side lobe angular domain, and carrying out dense discrete sampling in an interference source direction, a null angle domain is formed; taking the complex weight vector of the array element as an optimization variable, constructing a target function, introducing a constraint condition, and determining an optimization problem; and solving the optimization problem to obtain an optimal complex weight vector, and loading the optimal complex weight vector to array processing hardware.

A neuromorphic device (10) according to the present invention includes an M×1 input array (11) configured to convert an electrical input signal into an optical signal, an M×N processing unit (12) configured to execute photonic vector-matrix multiplication on the optical signal, an N×1 spike unit (13) configured to generate an optical spike signal based on an output signal from the M×N processing unit, an N×1 readout unit (14) configured to weight the optical spike signal, and optical waveguides (102) optically coupled to the M×1 input array, the M×N processing unit, the N×1 spike unit, and the N×1 readout unit, respectively.　With this arrangement, this invention can provide a neuromorphic device capable of executing signal processing with high accuracy.

A method in a relay device that comprises a plurality of distributed transceivers, includes receiving, in a relay operation, a data stream from a source device over a first carrier frequency at a particular direction. The method includes adaptively selecting antennas from the plurality of distributed transceivers for the relay operation of the data stream and utilizing, during the relay operation, the adaptively selected antennas to establish and maintain a link with the source device based on a link throughput between the source device and the relay device.

The invention provides a pulse energy control method and system for femtosecond laser processing of a carbon nanotube film, and relates to the technical field of laser precision machining.The method comprises the steps that plasma spectral signals and intensity data generated when femtosecond laser processing of a carbon nanotube film micropore array is conducted are collected; extracting the characteristics of the carbon element and the metal catalyst element and generating a spectrum ratio; performing time gating integration processing on the plasma spectrum signal based on the ratio to generate a spectrum integration signal; carrying out moving average and frequency spectrum peak value locking processing on the integral signal, and identifying the spectral characteristics of the carbon nanotube after complete gasification; the energy adjustment amount is calculated according to the spectral characteristics, femtosecond laser pulse energy is controlled in real time by adjusting the driving voltage of the acousto-optic modulator, and closed-loop control over the micropore array machining process is achieved. According to the invention, the processing precision and the material integrity of the femtosecond laser processing carbon nanotube film are improved.

A method and system for forming test layout information, wherein the system comprises: an input module configured to provide a test layout, the test layout having a plurality of pattern arrays, and each of the pattern arrays having a plurality of test patterns; a size acquisition module configured to acquire a pattern array size of each of the pattern arrays and a pattern geometric size of each of the test patterns; an array processing module configured to perform array processing on the pattern geometric size and the pattern array size to obtain initial pattern array information, the initial pattern array information including vertex coordinates of each of the test patterns in a corresponding pattern array; and a format conversion module configured to perform format conversion processing on each of the vertex coordinates to convert a format of each of the vertex coordinates into an optical proximity correction model readable format to form the test layout information. The format conversion module does not need to write corresponding readable texts for tool interfaces provided by different third-party processing software, thereby reducing workload and improving test efficiency.

There is provided an apparatus, a method, and a computer program. The apparatus comprises a plurality of registers to store data, the plurality of registers comprising at least one array register. The apparatus comprises data processing circuitry for processing a sequence of instructions. The data processing circuitry comprises decoder circuitry responsive to receipt of one or more instructions specifying the at least one array register to control the data processing circuitry to perform array processing operations in relation to the at least one array register. The apparatus comprises extension processing circuitry responsive to identification, by the data processing circuitry, of a delegated task to perform the delegated task asynchronously to the data processing circuitry. The decoder circuitry is responsive to a delegation instruction to trigger the extension processing circuitry to perform, as the delegated task, one or more operations associated with one of the array processing operations.

The invention discloses a BPSK (Binary Phase Shift Keying) signal processing method based on a circular antenna array and adaptive beam forming, and relates to the technical field of array signal processing and digital communication simulation. The method comprises the following steps: constructing a full-link integrated simulation environment, generating a BPSK radio frequency signal formed by root raised cosine, superposing noise and constructing a steering vector to form an array signal; and evaluating signal-to-noise ratio gains and pointing precision of different array configurations by traversing a total space angle, and determining an optimal array. For segmented dynamic input signals, weight vectors of various adaptive criteria are calculated in real time to perform dynamic beam forming and demodulation. And the system optimizes the optimal adaptive criterion according to the output signal-to-noise ratio and the pointing precision index. Closed-loop verification from modulation emission and dynamic beam forming to demodulation evaluation is realized, array configuration and algorithm can be cooperatively optimized under a high-fidelity dynamic channel, signal-to-noise ratio gain and pointing precision of a system are remarkably improved, and reliable simulation reference and engineering guidance are provided for real-time array processing.

The application discloses a kind of array receiver multi-path DDC synchronous acquisition output system and implementation method, its system includes main channel receiver, array processing board and auxiliary channel receiver, and reception channel is equipped by radio frequency and digital processing module on main channel receiver and auxiliary channel receiver;The application adopts synchronous interface design, utilizes asynchronous serial communication protocol with synchronous pulse, realizes multi-path DDC data synchronous control and state return, is realized with few control line, and wiring is simple and low in cost, and using array receiver address coding and the design of synchronous pulse time slot, the state return and instruction control of multiple reception channels and multiple DDC data are well solved, in addition, priority arbitration mechanism is used, the multi-path DDC multiple sampling rate data transmission flow control of array receiver is solved, avoids the problem of data loss caused by buffer overflow, has data buffer state monitoring function, and improves buffer utilization.

The application provides a signal detection device and method for a multiple-input multiple-output system, which can improve the throughput rate of MIMO signal detection of a receiver, and reduce the hardware cost of signal detection through processing structure optimization. Through complete systolic array design and data stream design, the intermediate matrix MEM in calculation is avoided, the hardware consumption is reduced, and complete high-speed MIMO signal detection processing is realized. Through the full systolic array design of MMSE detection, optimization of the structure and hardware resources is realized to realize high-speed array processing.

The application belongs to the technical field of microstructure heat dissipation cooling, and particularly relates to a high-thermal-conductivity metal surface microstructure array processing method and a conformal high-emissivity coating processing method. The microstructure heat dissipation array processing method adopts laser processing technology, and realizes the processing of a dense multi-stage microstructure array with a depth and width reaching hundreds of microns on a thin copper sheet through comprehensive pattern design and optimization of processing parameters. The conformal high-emissivity coating processing method is aimed at a conformal high-emissivity coating, and realizes the construction of a completely conformal high-emissivity coating through coating formula regulation and control and spraying process regulation and control, without affecting the morphology of the multi-stage microstructure, and while realizing the construction of an ultrahigh thermal emissivity coating.

This utility model discloses a dual-area isolated array receiving device, including a first planar microphone array, a second planar microphone array, a first analog-to-digital converter array module, a second analog-to-digital converter array module, a mid-surface solid damping layer, a shared digital signal array processing module, a first-direction digital audio output module, a second-direction digital audio output module, and microphone sub-array elements. This utility model can achieve precise separation and clear directionality of positive and negative areas in complex sound fields, and solves the problems of regional audio frequency separation, noise suppression, and structural resonance interference of traditional microphone arrays. It can be widely used in the field of audio frequency reception.

A method for automatically placing and routing processing elements (PEs), where each PE has a limited connectivity to its neighbors. The method may obtain placement primitive (PP) location window information, the location window information defining possible locations of a group of PPs within a coarse-grained reconfigurable array (CGRA). The method may obtain hardware constraints regarding the array of PEs, the hardware constraints comprise local connectivity constraints and remote connectivity constraints. The method may receive a computation graph (CG) that represents mathematical expressions to be calculated by the array of PEs. The method may determine a location of the PEs of the array of PEs based on the CG, the PP location window information, and hardware constraints.

The invention discloses a large-size wafer thinning method and application thereof, and belongs to the technical field of wafer processing. The method comprises the following steps: providing a wafer, and performing laser treatment on the surface layer of a target area on the surface of one side of the wafer to form an invisible damage layer; compounding a supporting layer on the surface of the side, provided with the invisible damage layer, of the wafer; and thinning the surface of one side, deviating from the composite support layer, of the wafer to a target thickness so as to expose the invisible damage layer. According to the method, the wafer is subjected to patterning or arraying treatment by adopting laser equipment in advance to form the invisible damage layer as the preset weak area, then the wafer is thinned to the required thickness from the back side after normal bonding or film pasting, stress is released through the preset weak area preferentially during thinning, the stress borne by the whole wafer is reduced, and the wafer quality is improved. Therefore, the risks of breakage and edge breakage are reduced, the thinning difficulty is further reduced, and the requirements of miniaturization and light weight can be met when the semiconductor device is prepared by using the thinning method provided by the invention.

The invention belongs to the technical field of sleep health monitoring, non-contact vital sign perception and intelligent hardware, and discloses a foldable arc panel type sleep respiration monitoring device and method, which comprises a millimeter wave radar module, a programmable coding metasurface panel, a controller of the programmable coding metasurface panel, an exhaled plume sensing array, a processor, a memory and a control interface / bus, the bed head can be quickly fixed, unfolded for monitoring and folded for storage through the base assembly, the telescopic sliding rail assembly, the multi-degree-of-freedom rotating joint assembly and the inward folding arc-shaped panel assembly. The processor controls the metasurface to switch according to a codebook and to synchronously form a coding-observation sequence with a radar acquisition window, selects a coding subset to lock monitoring based on quality indexes such as a respiratory spectrum peak signal-to-noise ratio and spectrum peak stability, and triggers relocking scanning when the quality is reduced; when the electronic reconstruction still cannot restore mass, the slide rail and the joint are driven to perform a small-step automatic fine tuning search under mass gating conditions, and a user is allowed to manually perform coarse tuning.

The application discloses the technical field of energy storage converter control technology, a converter, a fault detection and repair method of a carrier synchronous pulse signal of the converter and a computer program product thereof, and aims to solve the technical problem that the operation capacity, precision and flexibility of the fault detection / repair method cannot be considered simultaneously. The application comprises the following steps: letting a field programmable gate array handle the fault detection task of the carrier synchronous pulse signal of the converter which requires high parallel processing capacity, fully exerting the stronger parallel processing capacity and reaction capacity of the field programmable gate array relative to a digital signal processor, improving the precision of fault detection and providing flexibility for repair; and letting a digital signal processor execute the repair task which is more complex than the detection task, fully exerting the strong operation capacity of the digital signal processor relative to the field programmable gate array, accurately processing the fault by using the high-efficiency operation capacity of the digital signal processor on the basis of the accurate fault source detected by the field programmable gate array, and flexibly processing the fault.