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temporary_script.m
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clear;
%%
% fs = 16000;
% dbPerOct = 3.0; %dB
% f_band = [100 2000];
%
%
% Noct = 2;
% offsetdB = 0.377*Noct;
%
%
% fmid = 10^mean(log10(f_band));
% f_edges = [1 f_band(1) fmid f_band(2) fs/2];
%
% f_intpts = (f_band'*2.^(Noct/2*[-1 0 1]))';
%
% a = db2mag( ...
% dbPerOct/log10(2) * log10(f_edges/fmid) );
% a([1 end]) = a([2 end-1]);
%
% a_ = db2mag( ...
% dbPerOct/log10(2) * log10(f_intpts/fmid) );
% a_([1 end]) = a_(2,:);
%
%
% a_(f_intpts == f_band) = db2mag(mag2db(a_(f_intpts == f_band)) + [1 -1]'*offsetdB);
%
% f_i_rnd = round(f_intpts);
% a_before = a(1)*ones(1,numel(f_edges(1):f_i_rnd(1,1)));
% a_int = a_before;
% for cf = 1:numel(f_band)
% interpFrqs = f_i_rnd(1,cf)+1:f_i_rnd(end,cf);
%
% a_interp = db2mag( ...
% lagrangepoly( ...
% log10(f_intpts(:,cf)), ...
% mag2db(a_(:,cf)), ...
% log10(interpFrqs)) );
%
% if cf < numel(f_band)
% a_after = db2mag( ...
% dbPerOct/log10(2) * log10( ...
% (f_i_rnd(end,cf)+1:f_i_rnd(1,cf+1)) /fmid) );
% elseif f_i_rnd(end,cf) < f_edges(end)
% a_after = a(end)*ones(1,numel(f_i_rnd(end,end)+1:f_edges(end)));
% else
% a_after=[];
% end
%
% a_int = [a_int a_interp a_after];
% end
%
% f = f_edges(1):f_edges(end);
%
% plot(f_edges/1e3,mag2db(a)); hold on;
% plot(f/1e3,mag2db(a_int)); hold on;
% grid on; grid minor;
% set(gca,'xscale','log');
% xlim([0.01 10]); hold off;
%%
%%
c = 343;
rtxN = 60;
startL = 0;
endL = 3;
linePos = (startL + endL/rtxN/2) : endL/rtxN : endL*(1 - 1/rtxN/2);
[yy,zz] = meshgrid( linePos ); % Planar Array
d = mean(mean([diff(zz,[],1) diff(yy,[],2).'] ));
f_lo = c / (2*endL);
f_hi = c / (2*d);
nb = 14;
na = 1;
s_up_fact = 3;
fs = 16000*s_up_fact;
f_band = [25 3400]*s_up_fact;
% f_band = round([f_lo f_hi]);
f_filtlow = 10*s_up_fact;
% fmid = 10^mean(log10(f_band));
% [bc,ac]=cheby1(6,1,f_band(2)/(fs/2));
% impc = impz(bc,ac);
% IMPC = fft(impc,1024*2);
% IMPC(end/2+1:end) = [];
% Ac = -unwrap(angle(IMPC));
% res = 20;
% F = [0 ...
% (res:res:fs/2)/(fs/2)];
F = [0 ...
logspace(log10(f_filtlow),log10(fs/2),1023)/(fs/2)]; F(end)=1;
w = [1 ... DC component
1*ones(1,numel(F(F< f_band(1)/(fs/2)) ) - 1) ...
1*ones(1,numel(F(F>=f_band(1)/(fs/2) & F<=f_band(2)/(fs/2)))) ...
0*ones(1,numel(F(F> f_band(2)/(fs/2)))) ...
];
A = F*fs/2;%[0 ... DC component
%res:res:fs/2];
P = [0 ... DC component
...Ac(2:end).' + ...
ones(1,numel(A)-1)*pi/2];
% ff = linspace(F(1),F(end),nfft);
% Pbegin = P((ff<f_band(1)/(fs/2)) );
% Pend = P((ff>f_band(2)/(fs/2)));
% wp = [ ... DC component
% Pbegin(end)+Pbegin*0 ...
% P((ff>=f_band(1)/(fs/2) & ff<=f_band(2)/(fs/2))) ...
% Pend(1)+Pend*0 ...
% ];
% P = wp; P(1) = 0;
H = A .* exp(1j*P);
f = fdesign.arbmagnphase('Nb,Na,F,H',nb,na,F,H);
Hd = design(f,'iirls','Weights',w);
imp_ = Hd.impulse;
imp_ = imp_.Data;
if isstable(Hd), ImpSt='true';else,ImpSt='false';end
fprintf('WFS/SDM IIR(LS) pre-filter is stable: %s\n',ImpSt);
fprintf('WFS/SDM IIR(LS) pre-filter length: %d\n',numel(imp_));
% fvtool(Hd,'polezero')
% fvtool(Hd,'impulse')
% hfvt = fvtool(Hd,'Analysis','freq', 'Fs',16000, 'PhaseUnits','Degrees','Color','w');
% ax = findall(hfvt.Children,'Type','Axes');
% ax.XScale = 'log';
%%%
nfft = max(nextpow2(numel(H)),4096);
ff = linspace(F(1),F(end),nfft);
aa = interp1(F,A,ff);
pp = interp1(F,P,ff);
HH = aa.*exp(1i*pp);
WW = interp1(F,w,ff);
% WW(WW~=0) = tukeywin(nnz(WW),0.1);
WW = sqrt(WW);
OM = exp(-1i*(0:nb)' * ff*pi);
Dva = (OM(2:na+1,:).') .* HH.';
Dvb = -(OM(1:nb+1,:).');
% D=[Dva Dvb].*(WW.'*ones(1,na+nb+1));
%
% R = real(D'*D);
% Vd = real(D'*(-HH.*WW).');
%
% th = R\Vd;
%
% D_ = diag(WW)*[Dvb Dva];
% HH_ = diag(WW)*(-HH).';
% th = real(D_'*D_) \ real(D_' * HH_);
OM = exp(-1i*(0:nb)' * ff*pi);
Dvb = -(OM(1:nb+1,:).');
Dva = (OM(2:na+1,:).') .* HH.';
D=[Dvb Dva];
W = diag(WW);
th = real( D' * W * D ) \ real( D' * W * (-HH).' );
b = th(1:nb+1).';
a = [1 th(nb+2:end).'];
a = polystab(a);
imp = impz(b,a);
impIDEAL = (ifft([HH conj(HH(end:-1:2))])).'; % But contains delay
% imp(mag2db(abs(imp/max(imp)))<-120) = [];
if isstable(b,a), ImpSt='true';else,ImpSt='false';end
fprintf('WFS/SDM IIR(LS) pre-filter is stable: %s\n',ImpSt);
fprintf('WFS/SDM IIR(LS) pre-filter length: %d\n',numel(imp));
PRE_b = b;
PRE_a = a;
0;
% imp = Tools.fconv(imp,impc);
% y = zeros(1,16000);
% y(end/2)=1;
% yy = Tools.fconv(y.',imp);
% yy2 = filter(b,a,y).';
% yy3 = Tools.fconv(y.',imp);
%
% Y = fft(y);
% YY2 = fft(yy2(1:numel(y)).');
% YY3 = fft(yy3(1:numel(y)).');
% Y(end/2:end) = [];
% YY2(end/2:end) = [];
% YY3(end/2:end) = [];
IMP = fft(imp,4096);
IMP(end/2+1:end) = [];
% IMP_ = fft(imp_,1024);
% IMP_(end/2+1:end) = [];
frqs = linspace(0,fs/2,numel(IMP))/1e3;
% close all;
% fH = figure(1);
% fH.Color = 'w';
% yyaxis left;
% ax = gca;
% magColor = [0.0 0.3 0.7];
% plot(frqs,mag2db(abs(IMP)),'.','color',magColor,'linew',1.5); hold on;
% % plot(frqs,mag2db(abs(IMP_)),'.','color',magColor/2,'linew',1.5); hold on;
% plot(ff*fs/2/1e3,WW.^2 * 99+0.5,'color','k','linew',1.5); hold on;
% hold off;
% ax.YAxis(1).Label.String = {'Magnitude (dB)'; 'or LS Weight (\%)'};
% ax.YAxis(1).Label.Interpreter = 'latex';
% ax.YAxis(1).Color = magColor;
% ax.YAxis(1).MinorTick = 'on';
% ax.YAxis(1).TickDirection = 'both';
% ylim([0 100]);
%
% yyaxis right;
% ax = gca;
% phaseColor = [0.8 0.1 0.1];
% plot(frqs,(mod(unwrap(angle(IMP))+pi,2*pi)-pi)/pi*180,'.','color',phaseColor,'linew',1.5); hold on
% % plot(frqs,(mod(unwrap(angle(IMP_))+pi,2*pi)-pi)/pi*180,'.','color',phaseColor/2,'linew',1.5); hold on
% % plot(frqs,unwrap(mod(unwrap(angle(Y)) - unwrap(angle(YY2)+pi),2*pi)-pi)/pi*180); hold on
% % plot(frqs,unwrap(mod(unwrap(angle(Y)) - unwrap(angle(YY3)+pi),2*pi)-pi)/pi*180); hold on
% % plot(f_band/1e3,[90 90],'-k','linew',1.5); hold on
% plot(f_band/1e3,[91 91],':k','linew',0.5); hold on
% plot(f_band/1e3,[89 89],':k','linew',0.5); hold on
% hold off;
% ax.YAxis(end).Label.String = 'Phase (${}^\circ$)';
% ax.YAxis(end).Label.Interpreter = 'latex';
% ax.YAxis(end).Color = phaseColor;
% ax.YAxis(end).MinorTick = 'on';
% ax.YAxis(end).TickDirection = 'both';
% ax.XScale = 'log';
% ax.XAxis.TickDirection = 'both';
% ax.XAxis(1).Label.String = 'Frequency (kHz)';
% ax.XAxis(1).Label.Interpreter = 'latex';
% ylim([60 120]);
% xlim([0.1 round(fs/2/1e4)*1e1])
% grid off; grid on; grid minor;
% fH.Units = 'centimeters';
% fH.Position(3:4) = [12 5];
% tightfig;
%
% %%%
% fH2 = figure(2);
% fH2.Color = 'w';
%
% yyaxis right;
% ax = gca;
% magColor = [0.8 0.1 0.1];
% stem((0:numel(imp)-1)/fs*1e3,...
% mag2db(abs(imp)),...
% ':x','color', magColor);
% ylim( max(mag2db(abs(imp)))*[-1 1]*1.1 );
% ax = gca;
% ax.YAxis(end).Label.String = 'Magnitude (dB)';
% ax.YAxis(end).Label.Interpreter = 'latex';
% ax.YAxis(end).Color = magColor;
% ax.YAxis(end).MinorTick = 'on';
% ax.YAxis(end).TickDirection = 'both';
%
% yyaxis left;
% ax = gca;
% ampColor = [0.0 0.3 0.7];
% stem((0:numel(imp)-1)/fs*1e3,...
% ((imp)),...
% 'color', ampColor);
% ylim( max(abs(imp))*[-1 1]*1.1 );
% ax = gca;
% ax.YAxis(1).Label.String = 'Amplitude';
% ax.YAxis(1).Label.Interpreter = 'latex';
% ax.YAxis(1).Color = ampColor;
% ax.YAxis(1).MinorTick = 'on';
% ax.YAxis(1).TickDirection = 'both';
%
%
% ax.XAxis.TickDirection = 'both';
% ax.XAxis.Label.String = 'Time (ms)';
% ax.XAxis.Label.Interpreter = 'latex';
% grid off; grid on;
% fH2.Units = 'centimeters';
% fH2.Position(3:4) = [12 5];
% tightfig;
%%
% [num,den]=iirlpnorm(8,8,f/(fs/2),f/(fs/2),a_int);
% [num,den]=iirlpnorm(8,8,f/(fs/2),f/(fs/2),f/(fs/2));
%
% fvtool(num,den);
%%
% clc;
% close all;
% c = 343; % Sound velocity (m/s)
% fs = 16000; % Sample frequency (samples/s)
L = [3 3 3]; % Room dimensions [x y z] (m)
n = 0.1*fs; % Number of samples
mtype = 'omnidirectional'; % Type of microphone
mtypeW= 'cardioid'; % Type of microphone
order = 2; % -1 equals maximum reflection order
dim = 3; % Room dimension
orientation = 0; % Microphone orientation (rad)
hp_filter = 0; % Enable high-pass filter
rng shuffle;
%%%
betaW = (1 - [1.0 [1 1 1 1 1]*1.0]).^2; % Reverberation time (s)
%%%
beta(1,:) = (1 - [1.0 [1 1 1 1 1]*1.0]).^2; % Reverberation time (s)
beta(2,:) = (1 - [1.0 [0 1 1 1 1]*1.0]).^2; % Reverberation time (s)
beta(3,:) = (1 - [1.0 [0 0 1 1 1]*1.0]).^2; % Reverberation time (s)
beta(4,:) = (1 - [1.0 [0 0 0 1 1]*1.0]).^2; % Reverberation time (s)
beta(5,:) = (1 - [1.0 [0 0 0 0 1]*1.0]).^2; % Reverberation time (s)
beta(6,:) = (1 - [1.0 [0 0 0 0 0]*1.0]).^2; % Reverberation time (s)
%%%
% rtxN = 61;
% [yy,zz] = meshgrid(linspace(0,3,rtxN)); % Planar Array
% yy = linspace(0,3,rtxN); zz = yy*0+1.5; % Linear Array
%%% taper window to limit diffraction
winPerc = 20;
[Wx,Wy] = meshgrid( tukeywin(rtxN,winPerc/100) );
DiffracWin = Wx .* Wy;
%%%
rtx = [zeros(numel(yy),1), yy(:), zz(:)];
srx = rtx;
imgSingle = 6;
res = 25;
[XX,YY] = meshgrid(linspace(0,3,3*res));
MC=[];MF=[];M=[];MI=[];PP=[];
hh1=zeros((3*res)^2,n);
hh2=hh1;
tic;
ss=0;
% while ss < numel(XX) %ss<1 %for ss = 1:10
% ss = ss+1;
img = imgSingle;
[b,a] = cheby1(5,0.1,[150 2500]/(fs/2));
s = [1.5 2.5 1.5]; % Source position [x y z] (m)
%%% Mic transfer functions
stx = s; % Source position [x y z] (m)
htx = rir_generator(c, fs, rtx, stx, L, beta(img,:), n, mtype, order-1, dim, orientation, hp_filter);
htxLR = htx - ... % Last reflection
rir_generator(c, fs, rtx, stx, L, beta(img,:), n, mtype, order-2, dim, orientation, hp_filter) ;
%%%
current_pool = gcp; %Start new pool
fprintf('\n====== Building RIR Database ======\n');
fprintf('\t Completion: ');
Tools.showTimeToCompletion; startTime = tic;
percCompl = parfor_progress( (3*res)^2 );
parfor ss = 1:(3*res)^2
[x_,y_] = ind2sub(size(XX),ss);
x = XX(x_,y_); y = YY(x_,y_);
r = [ x y 1.5]; % Receiver positions [x_1 y_1 z_1 ; x_2 y_2 z_2] (m)
% s = [1.5 2.5 1.5]; % Source position [x y z] (m)
% r = rand(1,3).*[1.5 3 3] + [1.5 0 0]; % Receiver positions [x_1 y_1 z_1 ; x_2 y_2 z_2] (m)
% s = rand(1,3).*[1.5 3 3] + [1.5 0 0]; % Receiver positions [x_1 y_1 z_1 ; x_2 y_2 z_2] (m)
% s = [rand(1,2)*3 1.5]; r = [rand(1,2)*3 1.5]; % When using linear array
for img = imgSingle%1:6
%%% Ground truth reflections
h1 = rir_generator(c, fs, r, s, L, [1 beta(img,2:end)], n, mtype, order, dim, orientation, hp_filter);
h2 = rir_generator(c, fs, r, s, L, [0 beta(img,2:end)], n, mtype, order, dim, orientation, hp_filter);
h1_ = h1-h2;
hf = h1_(:);
%%%
%%% Loudspeaker transfer functions
rrx = r; % Receiver positions [x_1 y_1 z_1 ; x_2 y_2 z_2] (m)
hrx=[]; hrxLR=[];
for i = 1:size(rtx,1)
hrx(i,:) = rir_generator(c, fs, rrx, srx(i,:), L, beta(img,:), n, mtype, order-1, dim, orientation, hp_filter);
hrxLR(i,:) = rir_generator(c, fs, rrx, srx(i,:), L, beta(img,:), n, mtype, order-2, dim, orientation, hp_filter);
end
%%% Determine cardioid pattern multiplier
th = atan( ...
sqrt( (srx(:,2) - rrx(2)).^2 + (srx(:,3) - rrx(3)).^2 ) ...
./ (srx(:,1) - rrx(1)) );
% alph = 0.5; % cardioid
% A = alph + (1-alph)*cos(th);
% alph = realmax; % monopole
% alph = 2/1.0; % sub-cardioid
% alph = 1/1.0; % cardioid
% alph = 1/1.7; % super-cardioid
% alph = 1/3.0; % hyper-cardioid
alph = 0/1.0; % dipole
A = (alph + cos(th)) ...
/(abs(alph) + 1);
%%% Apply directional pattern to microphones and loudspeakers
htxDi = htx .* A;
htxLRDi = htxLR .* A;
% hrx = hrx .* A;
% hrxLR = hrxLR .* A;
% htx = htx(1:end/2,:) + htx(end/2+1:end,:);
% htxLR = htxLR .* A;
% hrx = hrx .* A;
% hrxLR = hrxLR .* A;
%%%
%%% Apply WFS/SDM pre-filter
hrx = Tools.fconv(hrx.',repmat(imp.',size(hrx,1),1).').';
hrxLR = Tools.fconv(hrxLR.',repmat(imp.',size(hrxLR,1),1).').';
% hrxIdeal = Tools.fconv(hrx.',repmat(impIDEAL.',size(hrx,1),1).').';
% hrxLRIdeal = Tools.fconv(hrxLR.',repmat(impIDEAL.',size(hrxLR,1),1).').';
%%%
%%% Cancellation signal minus last refelction
%%%% ONE (previously suggested pre-filter)
% hcId = Tools.fconv(htx.',hrxIdeal.');
% hcLRdirectId = Tools.fconv(htxLR.',hrxLRIdeal.');
% hcLRId = Tools.fconv(htxLR.',hrxIdeal.');
% hcLId = (hcLRId - hcLRdirectId);
% % hc = hc .* repmat(DiffracWin(:).',size(hc,1),1);
% % hcL = hcL .* repmat(DiffracWin(:).',size(hcL,1),1);
% hcId = sum(hcId(1:numel(hf),:),2) / rtxN^2 / pi;
% hcLId = sum(hcLId(1:numel(hf),:),2) / rtxN^2 / pi;
%%% TWO
hc = Tools.fconv(htx.',hrx.');
hcLRdirect = Tools.fconv(htxLR.',hrxLR.');
hcLR = Tools.fconv(htxLR.',hrx.');
hcL = (hcLR - hcLRdirect);
% hc = hc .* repmat(DiffracWin(:).',size(hc,1),1);
% hcL = hcL .* repmat(DiffracWin(:).',size(hcL,1),1);
hc = sum(hc(1:numel(hf),:),2) / rtxN^2 / pi;
hcL = sum(hcL(1:numel(hf),:),2) / rtxN^2 / pi;
%%% THREE
hcDi = Tools.fconv(htxDi.',hrx.');
hcLRdirectDi = Tools.fconv(htxLRDi.',hrxLR.');
hcLRDi = Tools.fconv(htxLRDi.',hrx.');
hcLDi = (hcLRDi - hcLRdirectDi);
% hc = hc .* repmat(DiffracWin(:).',size(hc,1),1);
% hcL = hcL .* repmat(DiffracWin(:).',size(hcL,1),1);
hcDi = sum(hcDi(1:numel(hf),:),2) / rtxN^2 / pi;
hcLDi = sum(hcLDi(1:numel(hf),:),2) / rtxN^2 / pi;
% hcId = hcId - hcLId;
hc = hc - hcL;
hcDi = hcDi - hcLDi;
%%%
% hI_band = filter(b,a,hI);
hf_band = filter(b,a,hf);
hc_band = filter(b,a,hc);
hcDi_band = filter(b,a,hcDi);
% figure(1);
% % plot(hI_band); hold on
% plot(hf_band); hold on
% plot(hc_band); hold on;
% % plot(hf_band - hc_band); hold on;
% hold off
hh1(ss,:) = hf_band;
hh2(ss,:) = hc_band;
hh3(ss,:) = hcDi_band;
% h = hf-hc;
%
% HF = fft(hf);
% HC = fft(hc);
% H = fft(h);
% % HI = fft(hI);
%
% ff = linspace(0,fs/2,n/2+1)/1e3;ff(end)=[];
%
% MagnitudeC = abs(HC);
% MagnitudeC(end/2+1:end)=[];
% MagnitudeF = abs(HF);
% MagnitudeF(end/2+1:end)=[];
% Magnitude = abs(H);
% Magnitude(end/2+1:end)=[];
%
% PhaseDifference = mod(unwrap(angle(HF)) - unwrap(angle(HC)) + pi,2*pi)/pi*180-180;
% PhaseDifference(end/2+1:end)=[];
%
% MC(:,ss,img) = MagnitudeC;
% MF(:,ss,img) = MagnitudeF;
% M(:,ss,img) = Magnitude;
% PP(:,ss,img) = PhaseDifference;
% % MM = mean([MM , MagnitudeC.*ff.' ],2);
% % PP = mean([PP , PhaseDifference ],2);
end
% figure(2);
% subplot(2,1,1);
% plot(ff, mag2db( MC ),':k'); hold on;
% plot(ff, mag2db( mean(MC,2) ),'-b','linew',1.5); hold on;
% plot(ff, mag2db( MF ),':m'); hold on;
% plot(ff, mag2db( mean(MF,2) ),'-g','linew',1.5); hold off;
% xlim([0.1 10]); %ylim([-60 0]);
% grid on; grid minor; set(gca,'xscale','log');
% xlabel('Frequency (kHz)');ylabel('Magnitude (dB)');
%
% subplot(2,1,2);
% plot(ff, PP ,':k'); hold on;
% plot(ff, mean(PP,2) ,'-','co',.8*[1 0 0],'linew',1.5); hold off;
% xlim([0.1 10]); ylim([-180 180]); yticks([-180:45:180]);
% grid on; grid minor; set(gca,'xscale','log');
% xlabel('Frequency (kHz)');ylabel('Phase (\circ)');
% figure(2);
% meanMF = mag2db(mean(MF,2));
% % plot(ff, mag2db( MF ) - meanMF ,':k'); hold on;
% % plot(ff, mag2db( M ) - meanMF ,':m'); hold on;
% plot(ff, mag2db( mean(MF(:,:,1),2) ) - meanMF(:,:,1) ,'-k','linew',1.5); hold on;
% set(gca,'ColorOrderIndex',1);
% for img = 3%1:6
% plot(ff, mag2db( mean( M(:,:,img),2) ) - meanMF(:,:,img) ,'-','linew',1.5); hold on;
% end
% hold off;
% xlim([0.1 10]); ylim([-30 20]);
% grid on; grid minor; set(gca,'xscale','log');
% xlabel('Frequency (kHz)');ylabel('Magnitude (dB)');
% legend({'Active Wall Off'; ...
% 'Active Wall On & 1 Reflection'; ...
% 'Active Wall On & 2 Reflections'; ...
% 'Active Wall On & 3 Reflections'; ...
% 'Active Wall On & 4 Reflections'; ...
% 'Active Wall On & 5 Reflections'; ...
% 'Active Wall On & 6 Reflections'}, ...
% 'Location','northwest');
%
% figure(111); scatter(x,y,'ok'); hold on;
% xlim([0 3]); ylim([0 3]);
% drawnow;
%%%
percCompl = parfor_progress;
Tools.showTimeToCompletion( percCompl/100, [], [], startTime );
%%%
end
percCompl=parfor_progress(0);
tEnd = toc;
fprintf('\nRIR execution time: %dmin(s) %fsec(s)\n\n', floor(tEnd/60), rem(tEnd,60)); %Time taken to execute this script
%%
hh(:,:,:,1) = reshape(hh1,3*res,3*res,[]);
hh(:,:,:,2) = reshape(hh2,3*res,3*res,[]);
hh3(:,:,:,1) = reshape(hh3,3*res,3*res,[]);
[~,IC] = max(abs(hh(ceil(size(XX,1)/2),ceil(size(XX,2)/2),:,1))); % spatial-centre time-index
FIELDERROR = diff(hh(:,:,IC,:),[],4);
imagesc(FIELDERROR);
%%
v = VideoWriter('IRcancelwall.avi','Uncompressed AVI');
open(v);
hhRender = hh(:,2:end,:,:);
maxV = max( abs( hhRender(:) ) ) * 0.5;
C = repmat(linspace(0,1,256)',1,3);
fH = figure(1); fH.Color = 'k';
for i = 1:600
FIELDERROR = hh(:,:,i,1);
image((FIELDERROR / maxV /1 + 1 ) * size(C,1)/2);
title('Reflections');
ax = gca; ax.Color(4) = 0;
ax.YDir = 'normal'; ax.TickDir = 'both';
axis([1 size(hh,1) 1 size(hh,2)]);
ax.YTick = linspace(1,size(hh,1),4);
ax.YTickLabel = linspace(0,3,4);
ax.XTick = linspace(1,size(hh,2),4);
ax.XTickLabel = linspace(0,3,4);
ax.XLabel.String = 'Width (m)';
ax.YLabel.String = 'Length (m)';
set(gcf,'Position',[100 100 500 500])
colormap(C);
ax.XLabel.Color = 1 - ax.XLabel.Color;
ax.YLabel.Color = 1 - ax.YLabel.Color;
ax.XAxis.Color = 1 - ax.XAxis.Color;
ax.YAxis.Color = 1 - ax.YAxis.Color;
ax.Title.Color = 1 - ax.Title.Color;
disp(i); drawnow;
set(gcf,'Renderer','zbuffer');
writeVideo(v,getframe(gcf));
end
for i = 1:600
FIELDERROR = hh(:,:,i,2);
image((FIELDERROR / maxV /1 + 1 ) * size(C,1)/2);
title('Cancellation Signal');
ax = gca; ax.Color(4) = 0;
ax.YDir = 'normal'; ax.TickDir = 'both';
axis([1 size(hh,1) 1 size(hh,2)]);
ax.YTick = linspace(1,size(hh,1),4);
ax.YTickLabel = linspace(0,3,4);
ax.XTick = linspace(1,size(hh,2),4);
ax.XTickLabel = linspace(0,3,4);
ax.XLabel.String = 'Width (m)';
ax.YLabel.String = 'Length (m)';
set(gcf,'Position',[100 100 500 500])
colormap(C);
ax.XLabel.Color = 1 - ax.XLabel.Color;
ax.YLabel.Color = 1 - ax.YLabel.Color;
ax.XAxis.Color = 1 - ax.XAxis.Color;
ax.YAxis.Color = 1 - ax.YAxis.Color;
ax.Title.Color = 1 - ax.Title.Color;
disp(i); drawnow;
set(gcf,'Renderer','zbuffer');
writeVideo(v,getframe(gcf));
end
for i = 1:600
FIELDERROR = diff(hh(:,:,i,:),[],4);
image((FIELDERROR / maxV /1 + 1 ) * size(C,1)/2);
title('Suppressed Reflections');
ax = gca; ax.Color(4) = 0;
ax.YDir = 'normal'; ax.TickDir = 'both';
axis([1 size(hh,1) 1 size(hh,2)]);
ax.YTick = linspace(1,size(hh,1),4);
ax.YTickLabel = linspace(0,3,4);
ax.XTick = linspace(1,size(hh,2),4);
ax.XTickLabel = linspace(0,3,4);
ax.XLabel.String = 'Width (m)';
ax.YLabel.String = 'Length (m)';
set(gcf,'Position',[100 100 500 500])
colormap(C);
ax.XLabel.Color = 1 - ax.XLabel.Color;
ax.YLabel.Color = 1 - ax.YLabel.Color;
ax.XAxis.Color = 1 - ax.XAxis.Color;
ax.YAxis.Color = 1 - ax.YAxis.Color;
ax.Title.Color = 1 - ax.Title.Color;
disp(i); drawnow;
set(gcf,'Renderer','zbuffer');
writeVideo(v,getframe(gcf));
end
close(v);