señales 1
DESCRIPTION
laboratorio de procesamiento de señalesTRANSCRIPT
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UNIVERSIDAD RICARDO PALMA
FACULTAD DE INGENIERIAEscuela de Ingeniería Mecatronica
CURSO: Procesamiento de Señales
Nombre: ARESTEGUI MORALES JESUS
Profesor: ING. RIVAS LEÓN JAVIER
2015-II
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1.-
cos (nt )=¿T=2πn
Sen (nt )=¿T=2 πn
cos ( 2πtk )=¿T= 2 π2 πk
=k Sen( 2 πtk )=¿T= 2π2πk
=k
cos ( 2πntk )=¿T= 2 π2 π nk
= knSen (2 πntk )=¿T= 2π
2πnk
= kn
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2.- A) B)
C) D)
3.-
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Demostración
Paraqueuna funcion sea periodicadebe cumplir :
T x1(t )
T x2(t )
=mn
=numero entero y T x3(t)=T x1 (t)∗n=T x2( t )
∗m
Dondem y nson constante s
Entonces como:
T x1(t )=T x2(t)=T
mn=1
T x3( t )=T∗m
Y comoen toda funcion periodica se cumple :
X (t)=X (t+T )=X (t+mT )
T x3( t )=T
4.-
a.-
Paraqueuna funcion sea periodicadebe cumplir :
T1T2
=mn=numeroentero yT=T 1∗n=T2∗m
T 1=2 πω
= 2 π2 π3
=3
T 2=2πω
= 2 π16 π3
=38
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T1T2
= 338
=8=¿ LA FUNCION ES PERIODICA
T=T 1∗n=3∗1=3
b.-
T 1=2 πω
= 2πi∗2 π3
=3i
T 2=2πω
= 2π3∗i
T1T2
= 3∗i2 π3∗i
=−92 π
=¿ LA FUNCION NO ESPERIODIC A
5.-
a.-
T y 1( t )=T2
b.-
T y 2( t )=T1 /2
=2T
c.-
T x (t )=π1=π
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8.-
a.- b.-
C.- d.-
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