Frequency

How to shift the frequency spectrum?

How to shift the frequency spectrum?
  1. How do you shift in frequency domain?
  2. What is frequency shifting?
  3. What causes frequency shift?

How do you shift in frequency domain?

Multiplying a function with a complex exponential with period t0=1/f0, corresponds to shifting the frequency domain by 1/t0=f0.

What is frequency shifting?

This phenomenon is known as “frequency shifting”, where the term “up- conversion” refers to the process of shifting a lower frequency tone to the upper frequency range (used in RF transmitters), while “down-conversion” refers to the frequency shifting from higher to lower frequency ranges (used in RF receivers).

What causes frequency shift?

Frequency translation is a phenomenon that results in a frequency shift whereby all frequency components in the modulated signal are shifted by a constant amount. It is generally due to oscillator drift or frequency offset in the carrier wave equipment.

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