Do you want to attend FREE Bootcamp of IT courses?

Login on Ekeeda
Signup on Ekeeda
Signup on Ekeeda
Mask-group

Introduction to Signals

Unit Impulse Signal Unit Step Signal Unit Ramp Signal Unit Parabolic Signal Digital Signal Random and Deterministic Signal Causal, Non-causal and Anti-causal Signal Even and Odd Sign Amplitude-Scaling of Signal Time-Scaling of Signal
Unit Impulse Function Unit Step Function Unit Ramp Function Sinusoidal Function Square Function Sawtooth Function Trianguler function Sinc function
Amplitude Scaling Time Shifting Time Scaling Time Reversal Addition Subtraction Multiplication Differentiation Integration
Continuous Time and Discrete Time Signals Deterministic and Non-Deterministic Signals Even and Odd Signals Periodic and Aperiodic Signals Energy and Power Signals Matlab Programming
What are Systems Types of Systems Linear and Nonlinear Systems Systems With and Without Memory Time Invariant and Time Variant System Linear and Non Linear System Causal and Non Causal System Stable and Unstable System What is the Difference Between Linear and Non Linear Systems What is the Difference Between Time-Variant and Time-Invariant Systems What is the Difference Between Linear Time-Variant and Linear Time-Invariant Systems What is the Difference Between Static and Dynamic Systems What is the Difference Between Causal and Non-Causal Systems What is the Difference Between Invertible and Noninvertible Systems What is the Difference Between Stable and Unstable Systems
Definition Convolution Graphical Representation of Convolution Worked out Problems

Introduction to Signals

Previous Page
Next Page

Signal

  • Signal is one type of information in the form of sound or image or data. If you are reading this information, here the data type of signal is there. If someone is watching a movie then it is a combination of voice and visual signal. In electrical engineering voltage, current, power are examples of signals.
  • Here are examples of signals. Signals are not only used in electrical engineering but lots of signals are part of our daily life, some of the examples are here.
  • First, fig. shows the ECG signal of a healthy person. This figure explains the application of signals in the medical field.

Example of Signal: ECG of a healthy person

Figure 1:Example of Signal: ECG of a healthy person

Example of Signal of Stock Market

Figure 2:Example of Signal of Stock Market

  • Another example of the signal is shown in Fig 2 which shows the signal of the stock market having Sensex varies from 1991 to 2011.

 

Previous Page
Next Page