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A General Method for (2,1,n) Convolutional Coding

A technology of convolutional coding and general method, applied in the direction of error correction/error detection, coding, coding components, etc. using convolutional codes, it can solve the problems of signal distortion, bit error, unreliable data stream, etc., and achieve high versatility. Effect

Active Publication Date: 2021-01-12
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the field of communication, due to the addition of various noises to the communication channel, there will be bit errors, signal distortion, and unreliable data flow of information during the channel transmission process of information, which will cause the communication quality to decline or even be unavailable.

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  • A General Method for (2,1,n) Convolutional Coding

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the examples.

[0029] A general method for (2,1,N) convolutional coding, including the following steps:

[0030] According to the requirements of different (2,1,N) convolutional coding, select the N value suitable for the requirements;

[0031] After determining the N value, select different configuration polynomial parameters as initialization input;

[0032] Take the data stream to be encoded as input and complete the encoding.

[0033] The present invention comprises the following steps:

[0034] 1) Select the value of N according to the actual needs of (2,1,N) convolutional coding; 1 is to input 1-bit data, 2 is to encode and output 2 bits after inputting 1-bit data, and N is the length of the polynomial.

[0035] 2) Select the serial-parallel encoding method according to the system requirements;

[0036] 3) According to the selection of 1) and 2), configure different polynomial...

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Abstract

The invention relates to a general method for (2, 1, N) convolution coding. The method can achieve the convolution coding of different N values through the preset polynomial parameters. The method canbe used for the serial convolution coding of (2, 1, N), and the configured polynomial parameters are the generator polynomials of different N values. When the method is used for the parallel (2, 1, N) convolution coding, the method needs to deduce a parallel structure in advance according to a serial structure, so as to serve as the polynomial parameters of parallel configuration. The method provided by the invention can be used for software computing, also can be used for hardware implementation, and can meet the demands of the actual application under different conditions.

Description

technical field [0001] The invention relates to the coding field of communication, and is a general method for (2, 1, N) convolutional coding. Background technique [0002] In the field of communication, due to the addition of various noises to the communication channel, there will be bit errors, signal distortion, and unreliable data flow of information during the channel transmission process of information, which will degrade the communication quality or even make it unusable. Using appropriate channel coding technology to encode information before sending it, and then decode the information at the receiving end can realize the function of forward error correction, etc., and improve the communication ability of information in a complex channel environment. Convolutional coding is an important coding technique of channel coding. (2,1,N) convolutional coding is widely used in deep space communication, high-speed transmission, wireless reliable communication, etc. because of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/23
CPCH03M13/235
Inventor 段茂强杨志家刘志峰吕岩王建军
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI