30results about How to "Increase processing bandwidth" patented technology

In a method for synchronization of a mobile radio receiver to a base station, the received signal is sampled using oversampling, by which means sample values are obtained from different sampling phases. The oversampled signal is correlated with a local code, with sample values that are associated with a first sampling phase being processed with a frequency offset with respect to sample values that are associated with a second sampling phase.

The invention discloses a multi-band frequency spectrum aggregating wireless transmitter-receiver device which is characterized in that multi-band simulating radio frequency front ends are aggregated; different radio frequencies are divided into 20 MHz and 60 MHz processing frequency bands; analog-to-digital conversion while receiving a base-band signal and digital-to-analogue conversion while sending are performed in low and intermediate frequencies; and a signal treatment relative to a base-band NC-OFDM modulation-demodulation is performed by a sending base-band processing channel and a receiving base-band processing channel which are dynamically arranged. The invention solves the problem that the prior mobile communication terminal cannot work in multi-band at the same time during the communication process and only can use continuous frequency spectrums. The frequency spectrum aggregating function of the transmitter-receiver device realizes a data rate required by an IMT-Advanced system.

The invention provides a frequency domain self-adaptive equalization transmission data processing method, a data receiving end and a storage medium, aiming to solve the problem of multipath fading without affecting the data processing bandwidth and satisfying the time delay requirement. The frequency domain adaptive equalization transmission data processing method includes: converting the received time domain data to the frequency domain to obtain a digital sequence Y{N}; establishing a local real-time matching feature vector in the frequency domain according to the transmission rate and bandwidth requirements C{N}, to simulate the actual frequency response of the multipath fading channel h{t}; correlate the digital sequence Y{N} with the local real-time matching feature vector C{N}, and obtain the equalized digital sequence X{ N} and eigenvector feedback data H{N}, wherein the eigenvector feedback data H{N} performs real-time feedback correction on the local real-time matching eigenvector C{N}; area.

The invention discloses a high-performance channel simulator radio frequency transceiver applied to 5G communication, which includes a transmission link and a reception link; in the transmission link, the intermediate frequency signal passes through the first intermediate frequency filtering module, the up-mixing module, The first automatic gain amplification control module, single-pole double-throw switch and radio frequency filter module are finally transmitted; in the receiving link, the radio frequency signal passes through the radio frequency filter module, single-pole double-throw switch, low noise amplifier, second automatic gain control amplification module, The down-mixing module, the second intermediate frequency filtering module and the third automatic gain amplification control module finally receive back; in addition, a local oscillator module providing local oscillator signals for the up-mixing module and the down-mixing module is also included. The invention can effectively reduce the complexity of the channel simulator, reduce the power demand for a single channel in 5G research, reduce power consumption, and has the characteristics of large processing bandwidth, small area, and good performance.

The invention provides a circuit structure for achieving chain table pipeline operation. The circuit structure comprises a chain table storage area and a chain table queue. The chain table storage area comprises a next-hop pointer and next-hop pointer effective indication. The chain table queue comprises a chain head, a chain tail and non-idle indication of the chain head. The circuit structure is characterized in that the next-hop pointer effective indication status 0[1:0] is expressed by 2 bits, and the 2 bits of the indication are expressed as status 0[0] and status 0[1] respectively; the chain table queue further comprises a reboot chain head and an indication state of the reboot chain head, and the indication state status 1[1:0] of the reboot chain head is expressed by 2 bits; the chain tail contains status 0[0]information corresponding to the chain table storage area. The problem that software and universal hardware chain tables can not process chain inlet and chain outlet at the same time for each clock cycle is solved; processing bandwidth is increased.

The invention discloses an electronic reconnaissance broadband digital receipt signal processing method based on under sampling. The method of the invention includes that: system bandwidth of a receiver is determined, and two sampling ADs are selected; according to Winograd algorithm, FFT operation is respectively carried out on the two AD acquisition signals, so as to obtain a first frequency spectrum of a first sampling AD and a second frequency spectrum of a second sampling AD; modulus of the two frequency spectrums are obtained; maximum of modulus of the two frequency spectrums and position thereof in spectral line as well as sub-maximum of modulus and position thereof in spectral line are searched, and finally frequency value of primary sinusoid component is obtained. The invention can cause the processing bandwidth of the receiver to breakthrough half of sampling frequency of AD device without using complex signal and improves the processing bandwidth.

The invention belongs to the technical field of intelligent polishing machining and manufacturing, and particularly relates to a high-order tangent contact enveloping type polishing machining controlsystem and method. The control system comprises a polishing machining parameter planning module, a workpiece pose control module, an abrasive belt compliance control module, an enveloping machining module and a polishing amount measuring module, wherein the polishing machining parameter planning module is used for identifying a convex curved surface in a workpiece curved surface, the workpiece pose control module and the abrasive belt compliance control module act cooperatively so as to adjust the pose of a workpiece and the contact force of the enveloping machining module and a sector-shapedcolumn surface in real time, and polishing machining on the workpiece is conducted under the condition; and the polishing amount measuring module is used for judging whether a polishing process is finished or not. The invention further discloses a corresponding method. According to the system, high-order cutting and enveloping on the machined workpiece are realized, meanwhile, the the workpiece pose control module and the abrasive belt compliance control module act cooperatively to achieve the synergistic effect, so that closed-loop control is realized, and the stability, rapidity and accuracyof system response are ensured.

The invention provides a data flow detection method and a data flow detection device. According to the data flow detection method and the data flow detection device, rules finally matched with a data flow are filtered, and the final remaining rules are less than the rules finally matched with the data flow, namely, the number of times of carrying out regular expression matching on the data flow finally is reduced, the performance overhead of equipment on regular expression matching is greatly decreased, and the processing bandwidth of the data flow detection equipment is broadened on the premise that hardware is unchanged.

The invention discloses an asynchronous transfer mode (ATM) cell recombination and sharing buffer memory system, which comprises a permanent virtual circuit (PVC), a chain table, a scanner and a first-in first-out device (FIFO), wherein the PVC is used for receiving cells, an on-chip static random-access memory (SRAM) is used as a receiving buffer memory, the PVC shares the buffer memory, the chain table comprises a FREE chain table for indicating the buffer memory rest space and an ACTIVE chain table for representing the space occupied by a buffer memory packet, the FREE chain table is used for receiving requests of the PVC, transferring the address in the FREE chain table to the PVC and storing the address into the buffer memory through the PVC, the scanner is used for visiting the attribute value and the chain table of the PVC in a fixed time sequence, and the FIFO has the effect that the information of the PVC packet is written into the FIFO after the PVC receives the tail cells of a certain PVC packet. In addition, the invention also discloses a realization method of the ATM cell recombination and sharing buffer memory. The unnecessary cells can be cleared, simultaneously, the operation of releasing the corresponding buffer space is completed, the buffer memory management is fairer and more reasonable, the processing bandwidth is high, and the logic realization is simple.

The application discloses an optical module and a network device, which are used to solve the problem of high bandwidth occupancy rate of the existing optical module. The optical module is located in the first network device of the access ring, and the access ring also includes a second network device and a third network device, and both the second network device and the third network device are optically connected to the first network device, and the first The network device is applied to the access point, and the optical module includes: a first multiplexer / demultiplexer and an optical receiver; wherein, the first multiplexer / demultiplexer is used to receive the first optical signal from the second network device and the first optical signal from the first optical Separate the second optical signal with the first wavelength from the signal, and transmit the second optical signal to the optical receiver; the first multiplexer / demultiplexer is also used to transmit the third optical signal to the third network device, wherein, The third optical signal is an optical signal of a wavelength other than the first wavelength separated from the first optical signal; the optical receiver is used for receiving the second optical signal.

The method thereof comprises: in TDM chip, a series / parallel converter converts the series TDM bit-stream into the parallel data in an 8 bits bit-wide; the input memory implements the buffering / bit-wide conversion for the data, namely converting the parallel data in 8 bits bit-wide into the parallel data in 8*m bit-wide; the parallel / series converter converts the parallel data in 8 bits bit-wide into the TDM bit-stream; the output memory implements the buffering / bit-wide conversion, namely converting the parallel data in 8*m bit-wide into the parallel data in 8 bits bit-wide, and implements relevant TDM switch.

The invention relates to a communication protocol configuration method and system for an arc welding machine. The method includes: a first processor has a built-in first parameter domain, and a plurality of sets of telegram parameters are defined in the parameter domain. The electronic text data and the electronic text flag corresponding to the data address; the second processor has built-in at least one set of function enabling flags corresponding to the electronic text data; obtains the first electronic text data entered from the outside, and stores the first electronic text data in the first electronic text data. In the data address, and set the first message flag corresponding to the first data address; cyclically detect the change status of multiple groups of message parameters, and detect the change of the data in the first data address, and send the first message data to the first data address. In the second processor, the function enable flag is set and enabled in response to the setting of the received first message flag. The problem of product unreliability is solved, and the unified correspondence between telegram data and function enable flag is beneficial to improve the effect of product reliability.

A device for realizing image data collection provided by the present invention includes: an image input interface for receiving input image data; a FIFO unit for temporarily storing image data; a FIFO control unit for storing image data in the FIFO unit, and according to the bus Read out the image data in an idle situation, thereby completing the clock domain conversion; the channel controller reads the image data from the FIFO unit, and selects a suitable channel for the transmission of the image data; the advanced high-performance bus master interface transfers the image data Through the advanced high-performance bus output; the register file controls and selects the functions of the image input interface, the FIFO unit, the FIFO controller unit and the channel controller; the advanced high-performance bus slave interface controls the Registers in the register file are configured. In addition, the invention also provides a method for realizing image data collection, which is integrated with a chip for realizing the image data collection device and a mobile phone equipped with the chip.

The invention relates to an antibacterial PA66 / ABS composite material. The antibacterial PA66 / ABS composite material is mainly prepared through blending the following ingredients in parts by mass and carrying out melting: 50-70 parts of polyhexamethylene adipamide, 10-30 parts of processing activator, 30-50 parts of acrylonitrile-butadiene-styrene, 5-10 parts of compatibilizer, 5-20 parts of toughener, 0.1-0.3 part of diffusion oil, 0.6-1.5 parts of antibacterial agent and 0.2-2 parts of auxiliaries. The antibacterial PA66 / ABS composite material is prepared through firstly, thoroughly mixing weighed polyhexamethylene adipamide, weighed processing activator, weighed acrylonitrile-butadiene-styrene, weighed compatibilizer and weighed diffusion oil in a high-speed mixer, then, adding the antibacterial agent and the auxiliaries into the mixture, and finally, adding the toughener into the mixture and carrying out thorough mixing, so as to obtain a premix; carrying out melt extrusion on the premix through a twin-screw extruder, and carrying out drawing, cooling and pelleting. The product provided by the invention has the advantages of easiness in processing, high antibacterial performance, excellent mechanical properties, and the like.

The invention belongs to the technical field of intelligent grinding and polishing manufacturing, in particular to a high-order cutting contact enveloping grinding and polishing method and applicationthereof. The method comprises the steps of 1, identifying curve faces of a workpiece and selecting a convex curved face area; 2, dividing the convex curved face area to obtain multiple sector cylinders and the machining poses, the enveloping angles [alpha] and the grinding and polishing quantities of the sector cylinders; 3, enabling one of the sector cylinders to make contact with a sanding belt, and adjusting the corresponding machining pose of the sector cylinder to make the angle of enveloping segmental arc between the workpiece and the sanding belt be equal to the enveloping angle [alpha]; 4, measuring the contact force of the sanding belt and the sector cylinders in real time until the removal amount of the sector cylinder is equal to the grinding and polishing quantity; and 5, repeating the step 3 and the step 4 until each sector cylinder is adjusted in the same way to complete the grinding and polishing of the workpiece. According to the method and the application thereof, theworkpiece is ground and polished in high-order cutting contact enveloping manner, and the machining is high in precision, good in quality, and high in efficiency.