frequency shifting of band limited signal

Hello,

I have a nearly band limited data set. The band is centered at 7MHz. But I need to shift this band. How can I perform this shifting in both direction using matlab?

[saima]

I multiplied a complex exponential in time domain to accomplish this shifting. But distortion in the spectrum was resulted. Any possible solution?

[Youssef Khmou]

saima,

did you try the function "circshift" on fft ?

Answer 1

[Sk Group]

Frequency Shifting Property in MATLAB Complete Prove (Code + Output)

Frequency shifting Prove: DFT{x(n)e^(j(2*pi/N)nl = X(K-l)

For detailed post and complete code visit: https://www.swebllc.com/frequency-shifting-property-in-matlab- complete-prove-code-output/