MATLAB BUILDER JA 2 Guía de usuario descargar pdf (Pagina 242)

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101

5 Sample Applications (Java)

* Sampling interval = 0.01

int[] dims = {1, nSamples};

data = MWNumericArray.newInstance(dims, MWClassID.DOUBLE,

MWComplexity.REAL);

for (int i = 1; i <= nSamples; i++)

{

double t = (i-1)*interval;

double x = Math.sin(2.0*Math.PI*15.0*t) +

Math.sin(2.0*Math.PI*40.0*t) +

Math.random();

data.set(i, x);

}

/* Create new fourier object */

theFourier = new fourier();

/* Compute power spectral density and plot result */

result = theFourier.plotfft(3, data,

new Double(interval));

}

catch (Exception e)

{

System.out.println("Exception:"+e.toString());

}

finally

{

/* Free native resources */

MWArray.disposeArray(data);

MWArray.disposeArray(result);

if (theFourier != null)

theFourier.dispose();

}

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MATLAB BUILDER JA 2 Guía de usuario Pagina 242

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