FIELD: information technology.
SUBSTANCE: decoding received binary sequence is divided into codewords. Binary elements in each codeword are permuted to form a Walsh-Hadamard matrix word. To determine the order of permuting elements in the codeword, multiple codewords are compiled into a matrix which then is brought to Walsh-Hadamard matrix by permuting columns and rows. The Walsh-Hadamard matrix codeword is multiplied by reference transposed Walsh-Hadamard matrix. Meanwhile, signal processing equivalent to fast Walsh-Hadamard transform is carried out. Multiplication results into the range, from which a maximum value is separated. The transmitted word corresponds to the maximum value.
EFFECT: number of operations for decoding Bose-Chaudhuri-Hocquenghem code as compared to decoding according to the maximum discrete likelihood function is reduced.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| RECIRCULATION CORRELATOR OF RESOLUTION OF PHASE-CODE MANIPULATED SIGNALS | 2005 |
|
RU2283541C1 |
| DATA DECODING METHOD BASED ON LDPC CODE | 2020 |
|
RU2747050C1 |
| METHOD FOR COMPRESSION AND RECOVERY OF MESSAGES | 2007 |
|
RU2374785C2 |
| METHOD AND DEVICE FOR ENCODING AND DECODING DATA IN CONVOLUTED POLAR CODE | 2014 |
|
RU2571587C2 |
| METHOD OF TRANSMISSION OF DISCRETE MESSAGE AND SYSTEM FOR ITS REALIZATION | 2001 |
|
RU2179365C1 |
| METHOD FOR ENCODING AND DECODING OF DATA FOR SYSTEM OF BROADCAST TRANSMISSION OF DIGITAL MESSAGES | 1994 |
|
RU2110148C1 |
| METHODS AND SYSTEMS FOR ENCODING AND DECODING LDPC CODES | 2016 |
|
RU2716044C1 |
| METHOD AND APPARATUS FOR DECODING LOW-DENSITY GENERATOR MATRIX CODE | 2008 |
|
RU2461962C2 |
| DEVICE AND METHOD FOR DECODING ERROR CORRECTION CODE IN COMMUNICATION SYSTEM | 2004 |
|
RU2280323C2 |
| METHOD OF TRANSMISSION OF MULTILATERAL MESSAGES BY THE CONCATENATED CODE IN THE COMMUNICATION COMPLEXES | 2017 |
|
RU2671989C1 |
