Signal Operations – Time Shifting, Scaling & Inversion

2

Signal Operations are simply modifications to the time variable of the signal to generate new signals. These are pretty similar to the mathematical graphical tranformations from our good old Calculus text.

The three kinds of Signal Operations are Time Shifting, Time Scaling & Time Inversion(or Time Reversal)

Time Shifting is simply shifting the signal in time. When we add a constant to the time, we obtain the advanced signal, & when we decrease the time, we get the delayed signal.

time_shifting

Time Scaling is compressing or dilating the signal.

time_scaling

Time Inversion is simply flipping the signal about the y-axis.

time_inversion

The above operations makes it easy to express a large domain of signals based on the fundamental signals by operation upon the basic signals.

SEE ALSO A Mind Map of Differential Calculus for the AP Calculus AB Exam

Share.

About Author

Founder at Durofy. Blogs on technology & startups, runs a full service digital agency, teaches AP Calculus.

2 Comments

  1. Pingback: Properties & Classification Of Signals | Durofy

  2. Pingback: Properties & Classification Of Signals » Durofy

Leave A Reply

3 + 6 =

*