T. P. Traitement du Signal MaÃ®trise E.E.A. - LASC

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6 SPTool: A <strong>Signal</strong> Processing GUI Suite 1 Change the filter sampling frequency to 5000 by entering this value in the Sampling Frequency text box. 2 Select Equiripple FIR from the Algorithm list. 3 Select bandpass from the Type list. 4 Set the passband edge frequencies by entering 750 for Fp1 and 1250 for Fp2. 5 Set the stopband edge frequencies by entering 500 for Fs1 and 1500 for Fs2. 6 Type 0.01 into the Rp field and 75 into the Rs field. Rp sets the maximum passband ripple and Rs sets the stopband attenuation for the filter. 7 Press the Apply button to design the new filter.When the new filter is designed, the magnitude response of the filter is displayed with a solid line in the display region. 6-24
Filtering and Analysis of Noise The resulting filter is an order-78 bandpass equiripple filter. Note You can use the solid line in the plot to modify your filter design. See “Redesigning a Filter Using the Magnitude Plot” on page 6-50 for more information. Step 3: Applying a Filter to a <strong>Signal</strong> When you apply a filter to a signal, you create a new signal in SPTool representing the filtered signal. To apply the filter filt1 you just created to the signal noise: 1 Select SPTool from the Window menu in the Filter Designer. 6-25
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T. P. Traitement du Signal Maîtris
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a=[1 2; 3 4] et le résultat suivan
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y=exp(i*2*pi*t) que l’on rencontr
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t=0:T/N:T-T/N; y=t.^2+5; plot(t,y);
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t f ∫ t0 f ( t) dt t ⎡ N −1 e
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TP 2 : ANALYSE ET SYNTHÈSE DE SIGN
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Relations entre la série de Fourie
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) Rampe Montrer que: c) Signal modu
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- Pour le signal c), vérifiez que
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Cette figure montre bien qu’il es
Page 24 and 25: N correspond aux nombres d’échan
Page 26 and 27: 2) Travail demandé 2-1) Analyse d
Page 29 and 30: TP 4 : UTILISATION DE LA TFD POUR L
Page 31 and 32: N −1 ∑ x( p)* y( p) = x( m) y(
Page 33: c) Autocorrélation d'un sinus brui
Page 36 and 37: Le schéma de principe qui peut s'a
Page 38: R p =3dB Rs=30dB f P1 =95kHz f P2 =
Page 45 and 46: H ( f ) Etant donné que est pério
Page 47: - Calculer les valeurs de la répon
Page 50 and 51: Exercice1 : comparaison des résult
Page 52 and 53: 6 SPTool: A Signal Processing GUI S
Page 104: 6 SPTool: A Signal Processing GUI S
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T. P. Traitement du Signal MaÃ®trise E.E.A. - LASC

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