function Balpha= sym_ambi(Aalpha)% function Balpha= sym_ambi(Aalpha)%   This file is part of the TFPM toolbox v0.5 (c)%   michael.jachan@tuwien.ac.at and underlies the GPL.% % Computes the time-lag and frequency-lag reversed and conjugated% ambiguity function with phase factor for alpha= 1/2!! %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%if(0)% TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%clear;tfpm;MAR  =   0;LAR  =   0;MMA  =   5;LMA  =   3;N    =  64;re_im= 'r';mo_no= 'm';tfpm_file_gen;%-------------alpha= 1/2;beta = 1/2;%Aalpha= tfarma_ambi(Aml, Bml, N, alpha);y= tfarma_gen(randn(N, 1), Aml, Bml, beta);%y= [N/2:-1:1 zeros(1, N/2)].';%y= [1 1 zeros(1, N-2)];qYY= corr_est(y, y,   -1, alpha);Aalpha= nm_to_ml(qYY).*tf_multiwin(N, MMA, 2*LMA, 6, min(3, N/32), 2);Aalpha= tf_multiwin(N, MMA, 2*LMA, 6, min(3, N/32), 2);figure(97);cesh(Aalpha)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%end;% TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%N= size(Aalpha, 1);Aminmin= fft_timereverse(fft_timereverse(Aalpha.').');%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%if(0)% TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%figure(98);clf;cesh(Aminmin)figure(99);clf;cesh(Aalpha-Aminmin)norm(Aalpha-Aminmin)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%end;% TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%ml= (-N/2:N/2-1).'*(-N/2:N/2-1);Balpha= conj(Aminmin).*exp(-2*pi*j/N*ml);%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%if(0)% TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%figure(98);clf;cesh(Balpha)figure(99);clf;cesh(Aalpha-Balpha)norm(Aalpha-Balpha)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%end;% TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%