If x(n) = (1/2)n u(n), y(n) = x2(n) and (eiω) be the fourier transform of y(n), then y(e0) is
For a signal x(t), the fourier transform is X(f), then inverse fourier transform of x(3f + 2) is given by
Apply scaling and shifting property.
The Fourier transform of given signal x(t)
Fourier transform of x(t) = eat u (-t), a > 0 is
Determine the fourier transform of the signal x(t) shown in figure.
Match List-I [Function f(t)] with List-II [Fourier transform F(ω)] and select the correct answer using the codes given below the lists:
A. f(t – t0)
B. f(t) ejω0t
C. f1(t) . f2(t)
1. f(ω – ω0)
Consider a continuous time low pass filter whose impulse response h(t) is known to be real and whouse frequency response magnitude is given by
Determine the value of h(t) if the group delay function is specified as t(ω) = 5.
using duality property,
Since group delay is constant and
Consider a signal x1(t) having a fourier transform x1(jω). An another signal x2(t) having fourier transform x2(jω) is related to x1 (t) by x2(jω) = [1 +sgn(ω)] x1(jω) x2(t) in terms of x1(t) is equal to
using, Hilbert transform
A Fourier transform pair is as follows:
The Fourier transform of given signal y(t) is
Suppose; y(t) = x(t) cost
then x(t) will be