Coding and decoding method and application used for reliable storing or transmitting data
A technology of a data storage system and an encoding method, applied in the directions of encoding, encoding components, data representation error detection/correction, etc., can solve problems such as difficulty in taking into account encoding and decoding efficiency and error tolerance rate, high overhead time, and long encoding and decoding transition time, etc. To achieve the effect of simple and efficient implementation, large error correction ability
Inactive Publication Date: 2009-09-09
WUHAN UNIV
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Problems solved by technology
The division of code groups before encoding and the combination of code segments after decoding require a lot of overhead time, and the transition time of encoding and decoding is too long to be high-speed and real-time
[0011] It can be seen that using existing codec solutions to solve the problem of reliable data storage or transmission, it is difficult to balance codec efficiency and error tolerance
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[0051] The present invention proposes a coding method for reliable data storage and transmission, which includes the following steps for source data processing,
[0052] (1.1) Carry out error control coding, construct launch vector A;
[0053] (1.2) Carry out cross-permutation encoding according to the transmission vector A, and the cross-permutation coding process is to get m transmission vectors A 0 , A 1 ,...A m-1 , launch vector A 0 , A 1 ,...A m-1 Each of them has n components, forming an m-row×n-column storage array, storing the storage array into n memories in row order, or concatenating in column order to form a baseband signal vector M with a length of mn A .
[0054] The key improvement of the present invention is to use error control and cross-permutation combined coding to achieve double error control effects in a simple way, and because the error control effect is strong, there is no need to increase the length of the supervisory code and the corresponding c...
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The invention provides encoding and decoding methods and applications for reliable storage or transmission of data. The coding method of the present invention carries out processing on source data including the following steps: (1.1) performing error control coding to construct a transmission vector A; (1.2) performing cross-permutation coding according to the transmission vector A. The encoding method of the present invention carries out the decoding process comprising the following steps on the coded data processed by the cross-permutation encoding process, (2.1) performing cross-permutation decoding according to the cross-permutation inverse transformation rule; (2.2) correcting the reception vector B obtained by cross-permutation decoding Wrong decoding. The invention also provides corresponding data storage system and data transmission system. The solution provided by the invention can ensure reliable storage or transmission of high-efficiency data, and is not only suitable for reliable storage of large-capacity data in a weak radiation environment and reliable transmission of data in a strong-interference low-quality channel environment, but also suitable for other fields in the field of electronic information Where data reliability is required.
Description
technical field [0001] The invention belongs to the field of electronic information science, and in particular relates to a coding and decoding method and system for reliable storage or transmission of data. Background technique [0002] The processing of data is the basic content of the field of electronic information, and ensuring data reliability is an important topic in this field. Among them, there are two most difficult situations to deal with: the security of large-capacity data storage in a weak radiation environment and strong interference Reliable transmission of data in poor channel environments. [0003] Reliable storage of large-capacity data in a weak radiation environment: [0004] In space, there are cosmic rays and various high-energy particles, including high-energy protons, neutrons, alpha particles, and heavy ions. This type of particle has high energy, very much like a tiny high-speed bullet. This type of particle impacts the chip. If it passes through...
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IPC IPC(8): H03M13/00H03M13/03H03M13/15
Inventor 曹庆源邓德祥吴敏渊周谊
Owner WUHAN UNIV