Author: Charan L.

Kiev – Ukraine, May 16-18, 2019

I gave a masterclass on Fourier Analysis based on my book at the National Aviation University in Kiev, Ukraine this last week. This is a 5000 student university in this beautiful, grand city full of young people. The city Kiev

Nyquist, Shannon and the information carrying capacity of signals

This tutorial covers the discussion of Nyquist capacity equation. This equation is often used to develop a capacity number for digital signals.  Nyquist capacity is often considered an achievable starting point. Then came Shannon, who gave us the expression for

This woman in tech and all that

In 1964, I was a young girl living in Varanasi, India. My father owned a business in that town, across from a movie studio called Prakash Talkies. The movie place always had gigantic posters of garishly pained actresses with gigantic

Announcing release of our book – Intuitive Guide to Fourier Analysis and Spectral Estimation

Announcing publication of The Intuitive Guide to Fourier Analysis and Spectral Estimation with Matlab Charan Langton and Victor Levin For science and engineering students and practicing engineers Sample Chapters Available at Amazon.com as color eBook to be read on your

A well done book on General DSP by Richard Tervo

One can get a pretty good feeling about a book by just flipping a few pages. And this book passed the flip test immediately! First of all, I want to say that I love this book and the way the

Intuitive Guide to Fourier Analysis by Charan Langton and Victor Levin

I am working on a book with the imaginative and creative title of “Intuitive Guide to Fourier Analysis”. This is an old topic, but forever confounding in all its myriad forms. The book will have some of my DFT, FFT

Why I Wrote My “Understanding Digital Signal Processing” Book

Why I Wrote My “Understanding Digital Signal Processing” Book by Richard Lyons Some time ago Charan asked me what events led me to write my “Understanding Digital Signal Processing” book? For Charan, and in case anyone else is interested, here’s

The Little Fruit Market

This blog post is by my friend Rick Lyons. The Little Fruit Market by Richard (Rick) Lyons There used to be a fruit market located at 391 San Antonio Road in Mountain View, California. In the 1990’s I worked part

Beat Notes: An Interesting Observation

This post is by Richard Lyons, the author of the superb book “Understanding Digital Signal Processing” – Charan Langton _________________________ Some weeks ago a friend of mine, a long time radio engineer as well as a piano player, called and

Digital communications tutorial links

I recently changed to this WordPress format for complextoreal.com. Although the functionality is great, the old links which so many schools, colleges had no longer work. The site has fallen off totally from Google, probably because none of the old

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