Introduction to Lecture-Series on Digital Signal Processing (DSP)

Signal Processing is an area of science as well as technology, which is actually playing an imperative role behind our digital lives. It has found applications in almost every field of engineering, due to the synthesis, analysis and processing of signals in time-, frequency- and spatial-domain.
Digital-Signal-Processing (DSP) has emerged rapidly due to the noteworthy advances in digital computer technology and VLSI technology. It is the processing of digitized discrete-time sampled signals. However, the discrete-time signal processing is for the sampled signals defined only at discrete-points in time (which are quantized in time only, but not in magnitude).
DSP is virtually the backbone of today’s information technology, such as digital communication and wireless communication, through the concepts of mathematical theory of communication. Therefore, the subject of discrete-time signal processing constitutes an important part of communication and computer engineering. Its utility to analyze the vital characteristics of signals and systems in time- and frequency-domain makes it an inevitable module of engineering practice.
These lecture-notes address the representation, analysis, processing, and design of various discrete-time signals and systems (filters), in time- as well as frequency-domain.

Dr. Amit Kumar Kohli
Faculty: Signal Processing and Communication Systems

Some Inspirational Quotes:-
“If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.” ― Nikola Tesla

“Everything is energy and that’s all there is to it. Match the frequency of the reality you want, and you cannot help but get that reality. It can be no other way. This is not philosophy. This is physics.” ― Albert Einstein

“What we observe as material bodies and forces are nothing but shapes and variations in the structure of space.” ― Erwin Schrodinger

“Information is the resolution of uncertainty.” ― Claude Elwood Shannon

“Thus we may have knowledge of the past but cannot control it; we may control the future but have no knowledge of it.” ―Claude Elwood Shannon

“To most people, the word “information” suggests meaning and reality. To the communication engineer, it is the problem of getting a waveform from one point to another or, more simply, a series of letters, or, simpler still, a series of zeros and ones.” ― Claude Elwood Shannon

“And, I see no limit to the capabilities of machines.” ― Claude Elwood Shannon