codegen.dat

通信中常用的卷积码信道译码源码程序

% ***********************************************************************
% * MVe 1.6.2002                                                        *
% *                                                                     *
% * Database containing code generator vectors for different coderates  *
% * and encoder types.                                                  *
% ***********************************************************************


% ***********************************************************************
% * Code generators (in octal form) for 1/k-rate feed-forward           *
% * nonsystematic encoders generating maximum free distance (df).       *
% *                                                                     *
% * SOURCE: Chang et al. "Some extended results on the search for good  *
% * convolutional codes", IEEE Trans. Inform. Theory, Vol IT-43.        *
% ***********************************************************************

#define CodeRate 1/2 begins

%%-- 1/2-Rate codegenerators --%%
%
CodeGenerator = [1,3];         % df=3
CodeGenerator = [5,7];         % df=5
CodeGenerator = [15,17];       % df=6
CodeGenerator = [23,35];       % df=7
CodeGenerator = [53,75];       % df=8
CodeGenerator = [133,171];     % df=10
CodeGenerator = [247,371];     % df=10
CodeGenerator = [561,753];     % df=12
CodeGenerator = [1131,1537];   % df=12
CodeGenerator = [2473,3217];   % df=14
CodeGenerator = [4325,6747];   % df=15
CodeGenerator = [10627,16765]; % df=16
CodeGenerator = [27251,37363]; % df=16

#define CodeRate 1/2 ends


#define CodeRate 1/3 begins

%%-- 1/3-Rate codegenerators --%%
%
CodeGenerator = [1,3,3];             % df=5
CodeGenerator = [5,7,7];             % df=8
CodeGenerator = [13,15,17];          % df=10
CodeGenerator = [25,33,37];          % df=12
CodeGenerator = [47,53,75];          % df=13
CodeGenerator = [117,127,155];       % df=15
CodeGenerator = [225,331,367];       % df=16
CodeGenerator = [575,623,727];       % df=18
CodeGenerator = [1167,1375,1545];    % df=20
CodeGenerator = [2325,2731,3747];    % df=22
CodeGenerator = [5745,6471,7553];    % df=24
CodeGenerator = [10533,10675,17661]; % df=24
CodeGenerator = [21645,35661,37133]; % df=26

#define CodeRate 1/3 ends


#define CodeRate 1/4 begins

%%-- 1/4-Rate codegenerators --%%
%
CodeGenerator = [1,1,3,3];                 % df=6
CodeGenerator = [5,5,7,7];                 % df=10
CodeGenerator = [13,13,15,17];             % df=13
CodeGenerator = [25,27,33,37];             % df=16
CodeGenerator = [45,53,67,77];             % df=18
CodeGenerator = [117,127,155,171];         % df=20
CodeGenerator = [257,311,337,355];         % df=22
CodeGenerator = [533,575,647,711];         % df=24
CodeGenerator = [1173,1325,1467,1751];     % df=27
CodeGenerator = [2387,2353,2671,3175];     % df=29
CodeGenerator = [4767,5723,6265,7455];     % df=32
CodeGenerator = [11145,12477,15537,16727]; % df=33
CodeGenerator = [21113,23175,35527,35537]; % df=36

#define CodeRate 1/4 ends


% ***********************************************************************
% * Code generators (in octal form) for 1/k-rate, k = 2,3, recursive    *
% * systematic constituent codes for turbo encoder.                     *
% *                                                                     *
% * SOURCE: Ho, Mark S.C et al. "Improving the Constituent Codes of     *
% * Turbo Encoders"                                                     *
% ***********************************************************************

#define CodeRate 1/2 begins

%%-- 1/2-Rate codegenerators --%%
%
% Note that 1st generator is "dummy"!
%
CodeGenerator = [3,1];
CodeGenerator = [7,5];
CodeGenerator = [13,17];
CodeGenerator = [23,33];
CodeGenerator = [45,77];
CodeGenerator = [147,135];
CodeGenerator = [313,275];

#define CodeRate 1/2 ends

#define CodeRate 1/3 begins

%%-- 1/3-Rate codegenerators --%%
%
CodeGenerator = [3,2,1];
CodeGenerator = [7,5,3];
CodeGenerator = [13,15,17];
CodeGenerator = [23,25,37];
CodeGenerator = [67,45,57];

#define CodeRate 1/3 ends