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| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
|---|---|
| date | Mon, 05 Dec 2011 16:20:06 +0100 |
| parents | f0afece42f48 |
| children |
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Plain (complete non-symmetric), One-sided (from zero to Nyquist) or two-sided (complete symmetric)." key="TYPE"> <ParamValue index="1" selection="1"> <Option javaType="java.lang.String" matlabType="char" value="plain"/> <Option javaType="java.lang.String" matlabType="char" value="one"/> <Option javaType="java.lang.String" matlabType="char" value="two"/> </ParamValue> </param> </plist> </block> <block UUID="ea720ba6-891a-4953-a234-ba6f85d49c9b" attachWorkbench="false" bounds="139 152 60 60" commentedOut="false" keepResult="true" keepresult="true" modifier="false" name="New Block"> <port UUID="01e82e24-2610-4537-8ac7-d6eb8541f88b" bounds="0 0 10 10" name="" number="0" terminal="" type="input"> <node UUID="7729540a-efa6-4667-90b5-b31297d81815" bounds="118 174 32 11" name=""> <pipe bezier="false" color="-3657166" dstPortUUID="01e82e24-2610-4537-8ac7-d6eb8541f88b" dstblock="New Block" dstport="0" srcPortUUID="6463a9e9-c594-484d-9a28-1e7762b00170" srcblock="New Block_3" thickness="2.0"/> 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UUID="80167ac1-26d3-450b-8e54-20f02a55d365" created="-1" description="" name="none"/> </block> <block UUID="1acd7c77-c7d2-42d6-8f4c-1a89ca2232c0" attachWorkbench="false" bounds="286 320 60 60" commentedOut="false" keepResult="true" keepresult="true" modifier="false" name="New Block_1"> <port UUID="17c1077b-643b-464c-90ae-e37eb1b14efe" bounds="0 0 10 10" name="" number="0" terminal="" type="input"> <node UUID="49f2e277-0413-4015-8829-c7b1daca68aa" bounds="241 247 136 106" name=""> <pipe bezier="false" color="-3657166" dstPortUUID="17c1077b-643b-464c-90ae-e37eb1b14efe" dstblock="New Block_1" dstport="0" srcPortUUID="9d7a78c0-e32d-4118-a837-7cdb8e878b95" srcblock="rat" thickness="2.0"/> </node> </port> <LTPDAalgorithm mcategory="Output" mclass="ao" mname="iplot" mpackage="" mversion="" portdims="1 -1 0 -1"/> <plist UUID="ad48913d-e90d-40c3-a27f-0889fb7c7baf" created="-1" description="" name="none"/> </block> <matblock UUID="65ae2281-fbba-4ced-b919-22e13aa5c03b" bounds="140 217 60 60" 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>