31 results about "Long code" patented technology

The invention provides a multi-agent-based code conversion system and method. The method comprises the following steps: preprocessing an input source code; performing block processing on the source code to obtain source code blocks, obtaining variable information and array size information of the blocks corresponding to the source code, and integrating the variable information and the array size information into complete variable information; fusing the code description file, the code blocks of the source codes and the variable information of the blocks corresponding to the source codes to generate target code blocks; debugging and checking the target code blocks in combination with the source code blocks; the code description file is used for guiding the intelligent agent to establish a jumping type relation in the code conversion process, and it is ensured that the generated target code better meets the actual function requirement of hardware; a block identifier is inserted into a long code to divide the long code into a plurality of blocks, so that the limitation on long code conversion is relieved; codes of different styles can be output by simply adjusting the cue word of the intelligent agent; through multiple times of debugging verification, the conversion quality of the target code is ensured.

According to the information processing method and device, a first LDPC base matrix can be divided into two types of G * G sub-matrixes, the row weight of each G * G sub-matrix is not larger than 1, and the column weight of each G * G sub-matrix is not larger than 1, so that the hardware implementation complexity is low, and a longer code length can be supported under the same hardware. Moreover, the first region of the first LDPC basis matrix comprises the second type of sub-matrixes with at least two element arrangement modes, so that interleaving can be realized, and long codes are supported. Moreover, the first region of the first LDPC basis matrix comprises a second type of sub-matrix in an element arrangement mode, so that the gain in the aspect of decoding parallelism can be provided.

The invention relates to the technical field of communication, in particular to a coding method and device and a decoding method and device. The method can be applied to the IEEE 802.11 ax standard, the 802.11 be standard, the 802.11 bn standard and the like and other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11 bf standard, the IMMW standard or the star flash standard and the like. The method comprises the following steps: a first site obtains information bits, performs LDPC coding on the information bits based on a check matrix, obtains coded bits, and outputs a sequence. And after obtaining the to-be-decoded information, the second station performs LDPC decoding in combination with the check matrix to obtain information bits. The code length corresponding to the check matrix is 7776, the code rate corresponding to the check matrix is 3 / 4, and the expansion factor of the check matrix is 162. The check matrix can be better matched with a longer code length, and the coding and decoding performance is improved.

The invention discloses a high-density completion input construction and completion method for warehouse-level long codes. The method comprises the following steps: firstly, acquiring a current code snippet near a to-be-complemented position and a background long code context, performing structured analysis on the context, dividing candidate code units, and determining a code unit containing the to-be-complemented position as a query code unit; performing multi-channel correlation retrieval on the candidate code units, screening to obtain candidate subsets, performing function-level or class-level importance evaluation and reordering on the candidate subsets, performing self-adaptive truncation according to an attenuation relationship of adjacent candidate importance gains, further generating a fine-grained semantic unit sequence, dividing functional blocks, and obtaining a fine-grained semantic unit sequence; according to the method, importance evaluation is carried out on the function blocks, the function blocks are selected or cut under budget constraint, and the function blocks and current code snippets are jointly used as completion input, so that information density and task correlation are improved, reasoning cost and response delay are reduced, and stability and availability of warehouse-level long code completion are improved.

The present application relates to the technical field of communications, and particularly relates to a coding method and apparatus, and a decoding method and apparatus. The present application can be applied to the IEEE 802.11ax standard, the 802.11be standard, the 802.11bn standard, and other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11bf standard, the IMMW standard or the SparkLink standard. The method comprises: a first station acquiring information bits, performing LDPC coding on the information bits on the basis of a parity-check matrix, so as to obtain the coded bits, and outputting a sequence; and after obtaining information to be decoded, a second station performing LDPC decoding in combination with the parity-check matrix, so as to obtain information bits, wherein the code length corresponding to the parity-check matrix is 7776, the code rate corresponding to the parity-check matrix is 5 / 6, and the expansion factor of the parity-check matrix is 162. The parity-check matrix can better match a longer code length, thereby improving the coding and decoding performance.

According to the method, the codes with the combination of the front shape and the rear shape are formed by splitting pronunciation and fonts in multiple regions for character symbols, the unique symbols are quickly retrieved, sequential searching of human eyes is reduced, and the problems that in an input method scheme, homophones are too many, codes are too long, repeated codes are too many, and learning cost is too high are solved.

The invention relates to the technical field of signal performance evaluation, in particular to a non-cooperative long code navigation signal performance evaluation method and related equipment, and the method comprises the following steps: obtaining a QPSK modulated non-cooperative long code navigation signal and a baseband code stream symbol; after the standard long code sequence is divided into equal-length signal segments, a sectional type parameter configuration correlation / integral method is used for capturing and tracking to obtain observed quantity information, and according to the standard long code sequence, the error performance of the non-cooperative signal code element sequence is evaluated, and the error rate and the position are counted; comparing the code element sequence after the baseband signal time domain waveform superposition with a local template, and evaluating time domain waveform distortion; the method comprises the following steps: quantifying non-cooperative signal channel characteristics, estimating digital distortion parameters through segmented accumulation of baseband signals, solving a response coefficient of an analog distortion filter by using a least square method, calculating an amplitude-frequency characteristic peak-to-peak value and a group delay variance, evaluating analog channel frequency response characteristics, and realizing accurate evaluation of non-cooperative long code signals.

The application discloses a kind of inter-satellite microwave measurement communication link signal generation and chain building method, comprising: generating transmitting signal based on direct sequence spread spectrum mode, and transmitting signal is divided into mutually orthogonal I branch and Q branch, and the spread spectrum code sequence of different length is modulated to two branches respectively;I branch is used as measurement branch, fixed modulation long code is used and binary offset subcarrier modulation mode is used, and measurement data frame with fixed frame length and information rate is loaded on I branch;Q branch is set to pilot mode or communication mode, short spread spectrum code is modulated in pilot mode and no data is loaded, long spread spectrum code is modulated in communication mode and communication data with configurable information rate is loaded;The start bit of spread spectrum code period of I branch and Q branch is aligned with the start bit of data frame header to the local maintained second pulse, and the generation of inter-satellite microwave measurement communication link transmitting signal is completed.The application can realize acquisition complexity and pseudo-range measurement accuracy under the condition of given bandwidth.

An information processing method and device, wherein a first LDPC base matrix used for encoding or decoding can be divided into multiple GxG sub-matrices with row weight not greater than 1 and column weight not greater than 1, the hardware implementation complexity is low, and longer code length can be supported under the same hardware. Moreover, the number of elements in the intersection of a first column set and a second column set is less than or equal to a first threshold, wherein the first column set is a set of columns in which non-zero elements of an i-th row of the first LDPC base matrix in a first region are located, the second column set is a set of columns in which non-zero elements of an i'-th row of the first LDPC base matrix in the first region are located, the i-th row and the i'-th row of the first LDPC base matrix can be any two rows in a first row set, and the first row set is a set of rows in which non-zero elements of each column in a reciprocal x-th column of a second region are located, which can accelerate the speed of information exchange, reduce decoding delay, and improve decoding performance.

The present application relates to the technical field of communications, and in particular to an encoding method, a decoding method, and an apparatus. The present application can be applied to the IEEE 802.11ax standard, the 802.11be standard, and the 802.11bn standard, as well as other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11bf standard, the IMMW standard, or the SparkLink standard. The method comprises: a first station acquires information bits, performs LDPC encoding on the information bits on the basis of a check matrix, obtains encoded bits, and outputs a sequence. After obtaining information to be decoded, a second station performs LDPC decoding in combination with the check matrix to obtain information bits. A code length corresponding to the check matrix is 7776, a code rate corresponding to the check matrix is 2 / 3, and a spreading factor of the check matrix is 162. The check matrix can better match a longer code length, thereby improving encoding and decoding performance.

The present application relates to the technical field of communications, and in particular to an encoding method and apparatus, and a decoding method and apparatus. The present application can be applied to the IEEE 802.11ax standard, 802.11be standard, 802.11bn standard, etc., and other standards in the IEEE 802.11 series, such as the 802.15 standard, 802.11bf standard, IMMW standard, or StarFlash standard. The encoding method comprises: a first station acquiring an information bit, performing LDPC encoding on the information bit on the basis of a check matrix to obtain an encoded bit, and outputting the encoded bit. A second station acquires information to be decoded, and then performs LDPC decoding on the basis of the check matrix to obtain the information bit. A code length corresponding to the check matrix is 7776, a code rate corresponding to the check matrix is 1 / 2, and a spreading factor of the check matrix is 162. The check matrix can better match a longer code length, thereby improving the encoding and decoding performance.

The invention provides a polar code retransmission method and device, and the method comprises the steps: enabling a to-be-coded bit sequence and a first bit sequence which contains bits and has a value of 0 to be interleaved, forming a long code structure, carrying out the polar coding of the interleaved sequence, obtaining a coding sequence, enabling the coding sequence to comprise an initial transmission sequence after the coding of the to-be-coded bit sequence, and enabling the initial transmission sequence to be transmitted to the to-be-coded bit sequence; according to the invention, the same performance as the initial transmission can be ensured, the sequence except the initial transmission sequence in the coding sequence can be sent as the retransmission sequence, and the constructed retransmission sequence is stable in performance and has the effect of long code gain.

An information processing method and apparatus. A first LDPC base matrix can be divided into two types of G×G sub-matrices, and each G×G sub-matrix has a row weight of no greater than 1 and a column weight of no greater than 1, so that hardware implementation complexity is low, and under the same hardware, a longer code length can be supported. In addition, a first region of the first LDPC base matrix comprises a second type of sub-matrices of at least two element arrangement patterns, so that interleaving can be implemented, thereby supporting long codes. In addition, the first region of the first LDPC base matrix comprises a second type of sub-matrices of one element arrangement pattern, so that gains in terms of decoding parallelism can be provided.

The application discloses a long-code bidirectional time-frequency comparison signal correlation peak calculation method and system, relates to the field of high-precision time synchronization on the ground, between the ground and the satellite and between the satellites, and aims at solving the problem that the traditional NCO interpolation method cannot determine the correlation peak position of a signal with a code length greater than 32768 and less than 65536 points and cannot capture the signal. The method comprises the following steps: acquiring bidirectional time-frequency comparison signal data and local code template data with a preset length, zero-pads the signal data and the code template data to a target length; performs fast Fourier transform on the zero-padded data, multiplies the transformed data by the conjugate, performs inverse fast Fourier transform on the multiplied result, and obtains result data; according to the position coordinates of two correlation peaks in the result data, divides the result data into two pieces of data containing a large correlation peak and a small correlation peak, zero-pads the two pieces of data to the preset length, and superimposes the two pieces of data to obtain the data correlation peak position and amplitude. The method realizes the determination of the peak value and amplitude of the preset length data signal and has strong practicability.

The invention discloses a coding processing method and device and a computer storage medium, and the method comprises the steps: determining the segment code of each unit code in a target coding sequence based on a hardware processing bit width and a preset coding segment parameter, and determining the segment mask value of the segment code from a pre-constructed mask library, and performing bitwise logic operation on the plurality of segmented mask values to determine a unit coding value. And determining a target mask value according to the unit mask values of all the unit codes. According to the technical scheme provided by the invention, the inherent bit width limitation of a hardware instruction set can be broken through through combined use of segmented coding and logical operation, and accurate determination of the mask value corresponding to the long coding sequence is realized. The masks of all segments can be integrated through rigorous bitwise logic operation, and the calculation precision of a final unit mask value is ensured. The processing efficiency of a large-scale mask filtering process is improved, the probability of occurrence of a false hit phenomenon is reduced, and a real and effective mathematical basis is provided for subsequent data analysis and data filtering.

The invention relates to channel coding in the field of communications. In the existing channel coding technology, a coding end carries out channel coding on a CB, the CB is a long code block, the decoding complexity of the long code block is high, and the decoding efficiency is low. In the application, a coding end divides a CB into a plurality of short code blocks, each short code block is independently coded to generate a plurality of corresponding second check bit sets, and the plurality of short code blocks are coupled together based on N first check bit sets to form a first bit sequence. In the decoding process, each short code block can be decoded based on the plurality of second check bit sets, if the decoding is successful, a decoding result is output, and the first bit sequence is not decoded based on the N first check bit sets any more. Therefore, high-complexity long code block decoding is converted into low-complexity short code block decoding, and the decoding efficiency is improved, so that the decoding throughput is improved.

The invention discloses a long text data generation method and related products, and the long text data generation method comprises the steps: obtaining a plurality of code files which comprise one or more functions; splicing the code file according to the dependency relationship between the functions to obtain a long code file; processing the long code file to obtain a description text of the long code file; inputting the description text into a model to obtain a question answer pair corresponding to the description text; the question answer pair comprises a global question and a solving link answer for the global question; the solution link answer comprises N solution steps with a chain reasoning relation; n is a positive integer; and determining the global question and the solution link answer as a long text thinking chain.

Provided in the present application are a polar code retransmission method and apparatus. In the method, a bit sequence to be encoded is interleaved with a first bit sequence where bits have a value of 0, so as to form a long code structure, and the interleaved sequences are subjected to polar encoding to obtain an encoded sequence, the encoded sequence comprising an initial transmission sequence obtained after the bit sequence to be encoded is encoded, such that the same performance as initial transmission can be ensured; and in the encoded sequence, sequences other than the initial transmission sequence can be sent as retransmission sequences, such that the retransmission sequences having such a structure have stable performance and exhibit the effect of a long code gain.

The present application relates to the technical field of communications, and particularly relates to a coding method and apparatus, and a decoding method and apparatus. The present application can be applied to the IEEE 802.11ax standard, the 802.11be standard, the 802.11bn standard and other standards in the IEEE 802.11 series such as the 802.15 standard and the 802.11bf standard, or the IMMW standard, the SparkLink standard, etc. The method comprises: a first station acquiring information bits, performing LDPC coding on the information bits on the basis of a parity-check matrix, so as to obtain coded bits, and then outputting a sequence; and after obtaining information to be decoded, a second station performing LDPC decoding in combination with the parity-check matrix, so as to obtain the information bits, wherein the code length corresponding to the parity-check matrix is 7776, the code rate corresponding to the parity-check matrix is 3 / 4, and the expansion factor of the parity-check matrix is 162. A parity-check matrix can better match longer code lengths, thereby improving the performance of coding and decoding.

This provides a suitable method for dividing video coding blocks for JVET. [Solution] The MPM set includes a set of intra predictive coding modes other than the six, and is encoded using truncated unary binarization. The 16 selected intra predictive coding modes are encoded using 4 bits of fixed-length code, and the remaining unselected coding modes are encoded using truncated binary coding. The JVET coding tree unit is coded as the root node of a QTBT structure. The QTBT structure has a quadtree branching from the root node and binary trees branching from each of the multiple leaf nodes of the quadtree, and using asymmetric binary partitioning, the coding unit represented by the leaf nodes of the quadtree is divided into multiple child nodes, and the multiple child nodes are represented as multiple leaf nodes of binary trees branching from the leaf nodes of the quadtree.

The invention relates to the technical field of communication, in particular to a coding method and device and a decoding method and device. The method can be applied to the IEEE 802.11 ax standard, the 802.11 be standard, the 802.11 bn standard and the like and other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11 bf standard, the IMMW standard or the star flash standard and the like. The method comprises the following steps: a first site obtains information bits, performs LDPC coding on the information bits based on a check matrix, obtains coded bits, and outputs a sequence. And after obtaining the to-be-decoded information, the second station performs LDPC decoding in combination with the check matrix to obtain information bits. The code length corresponding to the check matrix is 7776, the code rate corresponding to the check matrix is 2 / 3, and the expansion factor of the check matrix is 162. The check matrix can be better matched with a longer code length, and the coding and decoding performance is improved.

The invention relates to the technical field of communication, in particular to a coding method and device and a decoding method and device. The method can be applied to the IEEE 802.11 ax standard, the 802.11 be standard, the 802.11 bn standard and the like and other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11 bf standard, the IMMW standard or the star flash standard and the like. The method comprises the following steps: a first site obtains information bits, performs LDPC coding on the information bits based on a check matrix, obtains coded bits, and outputs a sequence. And after obtaining the to-be-decoded information, the second station performs LDPC decoding in combination with the check matrix to obtain information bits. The code length corresponding to the check matrix is 7776, the code rate corresponding to the check matrix is 1 / 2, and the expansion factor of the check matrix is 162. The check matrix can be better matched with a longer code length, and the coding and decoding performance is improved.

The application discloses a kind of organization structure tree display method, device, equipment and storage medium, by obtaining the authorized scope of the organization authority scope containing target organization form combination, and based on the first structure relationship long coding of organization team entity, the minimum common organization node and multiple target organization nodes in organization authority scope are inquired, to be able to utilize the single organization team entity of describing multiple organization form combinations, the target organization form combination obtained by the combination of multiple organization forms is authorized uniformly, and unified data query is carried out using structure relationship long coding mode, without complex authority matrix, overturns the original multi-entity query mode, realizes the authorization demand and organization query of arbitrary organization form combination, reduces the pressure of authority calculation;Finally, the minimum common organization node and multiple target organization nodes are rendered to show the target organization structure tree, realize the efficient display of target organization structure tree, improve system performance.

The present application relates to channel encoding in the field of communications. In existing channel encoding technology, an encoding end performs channel encoding on a CB, wherein CB refers to a long code block. The complexity of decoding long code blocks is relatively high, resulting in low decoding efficiency. In the present application, an encoding end divides a CB into a plurality of short code blocks, and each short code block is independently encoded to generate a plurality of corresponding second check bit sets, and the plurality of short code blocks are coupled together on the basis of N first check bit sets to form a first bit sequence. During decoding, each short code block may be first decoded on the basis of the plurality of second check bit sets, and if the decoding is successful, a decoding result is output, and decoding the first bit sequence on the basis of the N first check bit sets is no longer performed. In this way, the decoding of a high-complexity long code block is converted into the decoding of low-complexity short code blocks, thereby improving the decoding efficiency and thus increasing the decoding throughput.

A multimode solid-state drive (SSD) and associated method. An SSD includes: a plurality of flash memory chips addressable via a physical block address (PBA); and a controller chip configured to map logical block addresses (LBAs) from a host to PBAs, wherein the controller chip is further configured to handle different LBA block sizes according to a process that includes: partitioning a base partition to store one a long code word of size Clong having a single base data block protected with error correction coding (ECC); and partitioning a set of non-base partitions, each partitioned for a plurality of shortened code words, wherein each shortened code word is configured to store a shortened data block protected with ECC, and wherein the plurality of shortened code words are configured to be protected with ECC as a combined long codeword of size Clong.

An information processing method and apparatus are disclosed. The method includes: acquiring a first bit sequence; performing low-density parity-check (LDPC) encoding on the first bit sequence based on a first shift value matrix and a first expansion factor to obtain a second bit sequence, wherein the first shift value of a first region in the first shift value matrix is ​​obtained based on a second shift value in the second shift value matrix, the first expansion factor is greater than a first value, and the first value and the first expansion factor belong to the same expansion factor set; and outputting the second bit sequence. In the above method, the first expansion factor being greater than the first value allows for a larger-scale parity-check matrix. LDPC encoding based on this parity-check matrix can support longer code lengths and higher throughput, thus improving the performance of LDPC codes.

The invention discloses a data transmission method, system and device and a storage medium, and relates to the technical field of data transmission, and the method comprises the steps: collecting image data based on a high-frame-rate image collection unit; performing self-defined semi-fixed-length coding on the image data to obtain coded stream data; and packaging the coded stream data based on a QUIC protocol and transmitting the packaged coded stream data to a cloud data center. Through the method, the requirements of remote manipulator control and the like on a low-delay and high-precision real-time video transmission system can be met, and low-delay video acquisition, encoding and transmission oriented to practical scenes are realized.

The invention relates to the technical field of communication, in particular to a coding method and device and a decoding method and device. The method can be applied to the IEEE 802.11 ax standard, the 802.11 be standard, the 802.11 bn standard and the like and other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11 bf standard, the IMMW standard or the star flash standard and the like. The method comprises the following steps: a first site obtains information bits, performs LDPC coding on the information bits based on a check matrix, obtains coded bits, and outputs a sequence. And after obtaining the to-be-decoded information, the second station performs LDPC decoding in combination with the check matrix to obtain information bits. The code length corresponding to the check matrix is 7776, the code rate corresponding to the check matrix is 5 / 6, and the expansion factor of the check matrix is 162. The check matrix can be better matched with a longer code length, and the coding and decoding performance is improved.

The application provides a signal recovery method and device based on optical fiber distributed sensing and a storage medium, and belongs to the technical field of optical fiber sensing. The method comprises the following steps: determining the energy of a processed encoded anti-Stokes signal based on the energy of a spontaneous Stokes signal and the energy of a spontaneous anti-Stokes signal; and determining a temperature value based on the energy of the processed encoded anti-Stokes signal. The application solves the problem of stimulated Raman distortion caused by a long code bit number by demodulating a stimulated Raman scattering signal and constructing an algorithm containing only the processed encoded anti-Stokes signal, thereby improving the signal-to-noise ratio of the Raman scattering signal, reducing the error of the measured temperature, and making the measured temperature value more accurate.

The invention relates to a thermometer code bubble error correction method considering weight, which comprises the following steps of: forming basic logic units by using logic structures of an OR gate and an AND gate, upwards shifting the basic logic units bit by bit, and associating a plurality of basic logic units through input and output signals to form an error correction link which upwards shifts bit by bit, so as to correct a thermometer code with any bit length. According to the method, the error correction performance of the thermometer code is improved, the error correction circuit is simple, and the method is suitable for correcting any-order bubble errors in the thermometer code with the long code length.