?? rx_depuncture.m
字號:
function depunctured_bits = rx_depuncture(in_bits, code_rate)
[punc_patt, punc_patt_size] = get_punc_params(code_rate);
% Remainder bits are the bits in the and of the packet that are not integer mulitple of the puncture window size
num_rem_bits = rem(length(in_bits), length(punc_patt));
depuncture_table = zeros(punc_patt_size, fix(length(in_bits)/length(punc_patt)));
depunc_bits = reshape(in_bits(1:length(in_bits)-num_rem_bits), length(punc_patt), ...
fix(length(in_bits)/length(punc_patt)));
depuncture_table(punc_patt,:) = depuncture_table(punc_patt,:) + depunc_bits;
%puncture the remainder bits
rem_bits = in_bits(length(in_bits)-num_rem_bits+1:length(in_bits));
rem_depunc_bits = zeros(1,punc_patt_size);
rem_depunc_bits(punc_patt(1:num_rem_bits)) = rem_depunc_bits(punc_patt(1:num_rem_bits)) + rem_bits;
depunctured_bits = [depuncture_table(:)' rem_depunc_bits];
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