Basic Signal Concepts

Explore fundamental signal processing concepts in this comprehensive 90-minute lecture. Delve into complex number visualization, their relationship with real signals, and function shifting techniques. Examine time scaling and shifting of sinusoids, signal power and energy calculations, and the significance of decibels. Gain a clear understanding of the delta function, its summation, and transform notation. Investigate Linear Time Invariant (LTI) systems, the meaning of "linear phase," and develop a deeper comprehension of the delta impulse function. Equip yourself with essential knowledge for advanced signal processing applications and analysis.

Visualising Complex Numbers with an Example.
How do Complex Numbers relate to Real Signals?.
Shifting Functions.
Time Scaling and Shifting a Sinusoid.
Signal Power and Energy.
What are Decibels and why are 3dB and dBm important?.
Delta Function Explained.
Sum of Delta Functions.
Transform Notation.
What is a Linear Time Invariant (LTI) System?.
What Does "Linear Phase" Mean?.
How to Understand the Delta Impulse Function.