EC > GATE 2016 SET-2 > Discrete Fourier Transform
The Discrete Fourier Transform (DFT) of the 4-point sequence x[n] = {x[0], x[1], x[2], x[3]}={3,2,3,4} is X[k]={X[0],X[1],X[2],X[3]}={12,2j,0,-2j}. If X1[k] is the DFT of the 12-point sequence x1[n]={3,0,0,2,0,0,3,0,0,4,0,0}, the value of |X1[8]/X1[11]| is
Correct : 1
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......