EC > GATE 2016 SET-1 > Discrete Fourier Transform
Consider the signal. x[n]=6δ[n+2]+3δ[n+1]+8δ[n]+7δ[n-1]+4δ[n-2]. If X(ejω) is the discrete-time Fourier transform of x[n], then (1/π)∫-ππX(ejω)sin2(2ω)dω is equal to
Correct : 8
Similar Questions
The relationship between any N-length sequence x[n] and its corresponding N-point discrete Fourier transform X[k] is defined as X[k] = F{x[n]}.Another sequence...
For a vector x̄ = [x[0], x[1], …, x[7]], the 8-point discrete Fourier transform (DFT) is denoted by X̄ = DFT(x̄) = [X[0], X[1], …, X[7]], whereX[k] = ∑n=07 x[n]...
A finite duration discrete-time signal x[n] is obtained by sampling the continuous-time signal x(t)=cos(200πt) at sampling instants t=n/400, n=0,1,...,7. The 8-...
Total Unique Visitors
Loading......