Convolutional code blind identification method based on soft information Gaussian elimination algorithm
A Gaussian elimination, convolutional code technology, applied in the direction of error correction/error detection, coding, electrical components, etc. using convolutional codes, which can solve the problems of channel error statistical characteristics information loss, low channel transmission reliability, and judgment errors. , to achieve the effect of solving the decision error and solving the loss of information about the statistical characteristics of the channel error
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[0035] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0036] refer to figure 1 , to further describe in detail the specific implementation steps of the present invention.
[0037] Step 1, receiving the soft information sequence of the convolutional code whose code word is not synchronized:
[0038] Randomly intercept a piece of convolutional code from the convolutional code sequence received by the receiving end of the recognition system to generate a soft information sequence r of the convolutional code that receives the code word asynchronously, r=(r 1 ,r 2 ,...,r t ,...,r u ); among them, r t Indicates the tth information bit in the soft information sequence r of the convolutional code, the value range of t is [1, u], u indicates the length of the soft information sequence r of the convolutional code, u≥5000, and its value is determined by the recognition system receiving end Determination o...
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