soft_8psk_demod.m

B3g_phase2_C语言_Matlab程序及说明

function [Output] = soft_8psk_demod(data)

load ENC8PSK.mat			%get the variable s8[] and c8[]
Output = [];
for nn = 1:length(data)
	i = 1;
	while (i <= 8) & (data(nn) ~= s8(i))
		d(i) = 1 / abs( data(nn) - s8(i) );
		ed(1:3,i) = d(i) * ( 2 * c8(i,:) - ones(1,3) )';
		i = i + 1;
	end
	if i == 9
		Output = [Output sum(ed')/sum(d)];
	else
		Output = [Output ( 2 * c8(i,:) - ones(1,3) )];
	end
end