www.pudn.com > mimoprecoding.rar > tx_radon_hurwitz.m, change:2005-12-01,size:767b


function ofdm_syms_out = tx_radon_hurwitz(mod_ofdm_syms) 
global sim_consts; 
num_symbols = length(mod_ofdm_syms)/sim_consts.NumDataSubc; 
mod_syms = reshape(mod_ofdm_syms, sim_consts.NumDataSubc, num_symbols); 
ant1_syms = zeros(sim_consts.NumDataSubc, num_symbols); 
ant2_syms = zeros(sim_consts.NumDataSubc, num_symbols); 
% unchanged symbols 
ant1_syms(:,1:2:num_symbols) = mod_syms(:,1:2:num_symbols); 
ant2_syms(:,1:2:num_symbols) = mod_syms(:,2:2:num_symbols); 
% transformed symbols 
ant1_syms(:,2:2:num_symbols) = -conj(mod_syms(:,2:2:num_symbols)); 
ant2_syms(:,2:2:num_symbols) = conj(mod_syms(:,1:2:num_symbols)); 
ofdm_syms_out = zeros(2, length(mod_ofdm_syms)); 
ofdm_syms_out(1,:) = ant1_syms(:).'; 
ofdm_syms_out(2,:) = ant2_syms(:).'; 

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