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view m-toolbox/test/pipelines/test_ao_fft.lwb @ 17:7afc99ec5f04 database-connection-manager
Update ao_model_retrieve_in_timespan
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
|---|---|
| date | Mon, 05 Dec 2011 16:20:06 +0100 |
| parents | f0afece42f48 |
| children |
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commentedOut="false" expression="2" keepResult="true" keepresult="true" name="two"> <port UUID="74188127-e5c7-403c-ad41-4fbf11d9fa26" bounds="0 0 10 10" name="" number="0" terminal="" type="output"> <node UUID="fed5365d-7357-4318-b8df-542f91678649" bounds="188 210 30 40" name=""> <pipe bezier="false" color="-3657166" dstPortUUID="ab07fec4-b49a-4a98-8dc2-c920a6c6b994" dstblock="a2" dstport="1" srcPortUUID="74188127-e5c7-403c-ad41-4fbf11d9fa26" srcblock="two" thickness="2.0"/> </node> </port> </matblock> <annotation UUID="bc8683ac-0345-403b-a3fd-9f04eeaca845" backgroundColor="255 255 255" bounds="399 19 445 512" fontName="Times" fontSize="15" fontStyle="0" foregroundColor="51 204 0" name="" text="function test_fft()
% Test fft() operator for AOs.
%
% M Hewitson 19-04-07
% 
% $Id: test_ao_fft.lwb,v 1.4 2011/04/27 07:05:20 hewitson Exp $
% 


%% Make test AOs

nsecs = 10;
fs = 1000;

pl = plist('nsecs', nsecs, 'fs', fs, 'tsfcn', 'sin(2*pi*7.433*t) + randn(size(t))');

a1 = ao(pl);
a1 = a1.setName;


%% Take abs

a2 = abs(fft((a1))).^2;
a3 = psd(a1, plist('Nfft', 10000, 'Win', specwin('Rectangular', 10000)));

%% Plot
rat = a2./a3;

%%
iplot(rat, plist('YScales', 'lin'))
iplot(a2,a3)

%% Two-sided fft
a4 = fft(a1, plist('type', 'two'));
iplot(abs(a4), plist('XScales', {'All', 'lin'}));


% END"/> </canvas> </document> <ExecutionPlan/> </LTPDAworkbench>