Convolutional Encoder/Decoder of Rate 1/N Codes: compute_Hamm(o,r,block_st,n) - File Exchange

Code covered by the BSD License

Highlights from
Convolutional Encoder/Decoder of Rate 1/N Codes

circuit_logic(cur_State,n,m) Function: This defines the circuit logic for a specific convolution
compute_Hamm(o,r,block_st,n) Function: Computes the Hamming Distance.
compute_Lp(o,r,block_st,n) Function: Computes the Lp norm... approximate.
decode_1_3(r,n,mem,k,flag) Function: This is the decoder for a generalized convolution encoder.
encode_1_3(m,g,n) Function: Encodes a Rate 1/3 Convolution Code
find_ML_path(node,k) Function: Computes the ML estimate by traversing the Trellis Map, looking
run_me.m
View all files

from Convolutional Encoder/Decoder of Rate 1/N Codes by Romeil Sandhu
MATLAB code that tests a rate 1/N Convolution Encoder and Decoder schemes via a Trellis map.

compute_Hamm(o,r,block_st,n)

function dist = compute_Hamm(o,r,block_st,n)
%Function:  Computes the Hamming Distance.
%o        - lth branch vector of the trellis map
%r        - total received vector
%block_st - branch currently on
%n        - length of vector block

rhat = r(block_st:block_st+n-1);  %Find r branch vector
dist = sum(o ~= rhat);            %Computes Hamming Distance

Highlights from Convolutional Encoder/Decoder of Rate 1/N Codes

Highlights from
Convolutional Encoder/Decoder of Rate 1/N Codes