Amplitude Reversal of Signals
The amplitude reversal is the folding of the signal about the horizontal axis, or it is simply a mirror image about the horizontal axis. Amplitude reversal gives a 180-degree phase shift with respect to the horizontal axis.
Example – let a signal is x(t) then find y(t) = -x(t)?
x(t) = 1 ; [Tex] -2 \leq t \leq 1[/Tex]
0 ; otherwise
y(t) = -x(t) ,
y(t) = -1 ; [Tex] -2 \leq t \leq 1[/Tex]
0 ; otherwise
Graphically ,
Basic Signal Operations
Basic signal operations are nothing but signal manipulation or modification tools that are used in signal processing and analysis. It helps to understand the signals in different situations. These operations allow the modification and enhancement of signals for specific applications.
In this article, we will discuss the basic signal operations and understand different operations related to the time and amplitude of the signal. In time transformations, we will cover time scaling, time shifting, and time reversal, and in amplitude transformations amplitude scaling of signals, amplitude reversal of signals, addition of signals, multiplication of signals, differentiation of signals and integration of signals. We also cover various advantages, disadvantages and applications of time and amplitude transformations.
Table of Content
- What are Basic Signal Operations?
- Classification
- Basic Signal Operations on Independent Variable Time
- Basic Signal Operations on Dependent Variable Amplitude
- Addition
- Multiplication
- Differentiation
- Integration