A continuos-time signal X(4) has frequencies in the range 30 to 40H2 The signal is Sampled with period Ts so that we obtain a discrete - time signal x[]=x (nTs) The amplitude spectrum x (F)| of x(t) is as following (F in hertz, using w=2MF) |lx(F기| F(Hz) - 40 -30 30 40 ) What's the Ny quist trequency at which x(4) Should be sampled to avoid alising ? b) We sample at a rate of 50 Hz, and apply a Low apass fiter with fc=30Hz. What will the min and max grequency of the resulted dignal?

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A continuos-time signal x(4) has frequencies
in the range 30 to 40H2. The signal is
Sompled with period Ts so that we obtain
a discrete - time signal x[]=x(nTs)
The amplitude spectrum x (F)| of x(t) is as
following (F in hertz, using w=2RF)
F(Hz)
30 40
- 40 -30
) What's the Ny quist Srequency at which x(4)
Should be sampled to avoid alising?
b) We sample at a rate of So H2, and apply
a Low -pass fiter with fc= 30Htz. What will
the min and max
frequency of
the resulted
dignal?
Transcribed Image Text:A continuos-time signal x(4) has frequencies in the range 30 to 40H2. The signal is Sompled with period Ts so that we obtain a discrete - time signal x[]=x(nTs) The amplitude spectrum x (F)| of x(t) is as following (F in hertz, using w=2RF) F(Hz) 30 40 - 40 -30 ) What's the Ny quist Srequency at which x(4) Should be sampled to avoid alising? b) We sample at a rate of So H2, and apply a Low -pass fiter with fc= 30Htz. What will the min and max frequency of the resulted dignal?
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