An analog signal xa(t) has a continuous fourier transform that follows the attached image. If the signal is sampled at 600 samples/sec, the DTFT is the second image. What's the sketch of the spectrum Xa(F) of the origial analog signal?

P.nil

Hello, I have a physiology graphing question! What is a Fast Fourier Transform and what does it do? You don’t have to know themathematical details, just what does the graph you look at in the end tell you.

Explain the Fourier Transform and its applications in signal processing. How does it help in analyzing the frequency components of a signal?

The signal x(t) = sinc²(5t) is sampled at 15Hz to produce the signal x,(t). (a) Derive the Fourier transform of the sampled signal x,(t). (b) Sketch the spectrum of the sampled signal xs(t).

Which of the following characteristics must a signal have in order to be expressed in terms of a Fourier transform?You must indicate all valid optionsA) None is correctB) It must be continuous and have finite energyC) It must be periodic and have finite energy.D) All are correctE) To be periodic and to have infinite energy