Description: 提供了一个硬判决的viterbi译码器（2，1，3）
有源程序及算法描述，未成定稿，只供参考
（vhdl 语言描述）
-provided a hard decision of the Viterbi Decoder (2,1, 3) the source code and the algorithm description, from his position as final, for reference (vhdl Description Language) Platform: |
Size: 3344105 |
Author:潘 应 云 |
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Description: Viterbi Algorithm & Viterbi Decoder Matlab Code.(Provided both soft & hard decision ability). Note: The main function is viterbi.m Platform: |
Size: 3072 |
Author:Nick |
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Description: verilog程序，实现了（2，1，4）卷积码编码，和基于回溯算法的维特比译码器-verilog program to achieve the (2,1,4) convolutional code encoding, and algorithm based on the back of the Viterbi decoder Platform: |
Size: 3072 |
Author:xiongherui |
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Description: This function implememts Soft Output Viterbi Algorithm in trace back mode
Input:
rec_s: scaled received bits. rec_s(k) = 0.5 * L_c(k) * y(k)
L_c = 4 * a * Es/No, reliability value of the channel
y: received bits
g: encoder generator matrix in binary form, g(1,:) for feedback, g(2,:) for feedforward
L_a: a priori information about the info. bits. Extrinsic info. from the previous
component decoder
ind_dec: index of the component decoder.
=1: component decoder 1 The trellis is terminated to all zero state
=2: component decoder 2 The trellis is not perfectly terminated.
Output:
L_all: log ( P(x=1|y) ) / ( P(x=-1|y) )
Frame size, info. + tail bits- This function implememts Soft Output Viterbi Algorithm in trace back mode
Input:
rec_s: scaled received bits. rec_s(k) = 0.5 * L_c(k) * y(k)
L_c = 4 * a * Es/No, reliability value of the channel
y: received bits
g: encoder generator matrix in binary form, g(1,:) for feedback, g(2,:) for feedforward
L_a: a priori information about the info. bits. Extrinsic info. from the previous
component decoder
ind_dec: index of the component decoder.
=1: component decoder 1 The trellis is terminated to all zero state
=2: component decoder 2 The trellis is not perfectly terminated.
Output:
L_all: log ( P(x=1|y) ) / ( P(x=-1|y) )
Frame size, info. + tail bits Platform: |
Size: 1024 |
Author:yk |
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Description: 维特比算法，用于对卷积码进行解码，算法最小化汉明距离而不是似然函数-Viterbi algorithm. The Viterbi decoder for convolutional codes.This algorithm minimizes the metric rather than maximizingthe likelihood. Platform: |
Size: 2048 |
Author:李银银 |
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