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Decoding method and device

A decoding and decoder technology, applied in the field of decoding methods and devices, can solve problems such as large performance loss, and achieve the effects of improving reliability, reducing the number of decoding iterations, and improving overall performance

Active Publication Date: 2019-04-23
济南瑞特安防设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a decoding method and device to at least solve the technical problem in the prior art that the performance of the decoder is greatly lost in the process of decoding using a suboptimal method

Method used

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Embodiment 1

[0032] According to an embodiment of the present invention, an embodiment of a decoding method is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, although A logical order is shown in the flowcharts, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0033] Based on the characteristics of cascaded Zigzag coding, it has strong error correction performance. However, the complexity of some optimal algorithms is high. In this case, the Max-Log-APP algorithm with lower complexity can be used. It makes the resource consumption of the implementation lower, but its performance is worse than that of the concatenated Zigzag code decoded by the optimal algorithm. Therefore, this application proposes a decoding method, which can guarantee its decoding performance while using th...

Embodiment 2

[0101] According to an embodiment of the present invention, an embodiment of a decoding device is provided, Figure 5 is a schematic diagram of a decoding device according to an embodiment of the present invention, such as Figure 5 As shown, the device includes:

[0102] The determination module 50 is configured to determine mutual information adjustment parameters of the decoder during the iterative decoding process.

[0103] The adjustment module 52 is configured to adjust the first mutual information through the mutual information adjustment parameter to obtain the second mutual information, wherein the first mutual information is based on the a posteriori information obtained after decoding the current branch and the a priori information of the current branch Sure.

[0104] The decoding module 54 is configured to use the second mutual information to determine the prior information of the next-level branch, and perform iterative decoding according to the prior informatio...

Embodiment 3

[0107] According to an embodiment of the present invention, a storage medium is provided, and the storage medium includes a stored program, wherein the decoding method described in Embodiment 1 of the device where the storage medium is located is controlled when the program is running.

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Abstract

The invention discloses a decoding method and device. The method comprises the steps of determining mutual information adjustment parameters of a decoder in an iterative decoding process; adjusting first mutual information through utilization of the mutual information adjustment parameters, thereby obtaining second mutual information, wherein the first mutual information is determined according toposteriori information obtained after a current branch is decoded, and prior information of the current branch; and determining the prior information of a next-level branch, and carrying out iterative decoding according to the prior information of the next-level branch. According to the method and the device, the technical problem that in the prior art, performance loss of the decoder is relatively high in a decoding process through utilization of a suboptimum method is solved.

Description

technical field [0001] The present invention relates to the field of data processing, in particular to a decoding method and device. Background technique [0002] Zigzag code is a kind of parity check code constructed with a "zigzag" structure. The Zigzag code of the cascaded structure can be constructed through multi-dimensional parallel cascading, and its coding structure can be as follows: figure 1 shown. In this structure, a Zigzag code with a K-dimensional cascade structure can be described by parameters (I, J, K). The information sequence can be arranged into an I×J information matrix D first, and then the information matrix is ​​Zigzag encoded after passing through different K interleavers, and the check bits generated after encoding are extracted to form a check vector P 1 ,P 2 ,...,P K , and then, the information matrix and check vector after concatenated encoding can form a new code word matrix, and its structure can be as follows figure 2 shown. [0003] H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H03M13/29
CPCH03M13/2948H04L1/0063H04L1/0064H03M13/29H04L1/00
Inventor 不公告发明人
Owner 济南瑞特安防设备有限公司