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Year: 2013

The Little Fruit Market

By Charan L. Posted on July 18, 2013 Posted in Digital Communications, Signal processing, Silicon Valley, Transistors

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 …

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Beat Notes: An Interesting Observation

By Charan L. Posted on May 26, 2013 Posted in DFT, Digital Communications, Signal processing

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 …

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Digital communications tutorial links

By Charan L. Posted on April 18, 2013 Posted in Digital Communications

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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DTFT, DFT Tutorial added

By Charan L. Posted on April 4, 2013 Posted in DFT

I have added Chapter 5 which covers DFT and DTFT and a little bit about FFT.  The tutorial has most of the Matlab code used to generate the graphs. In the links page, I have also added the sites I …

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Understanding Digital Signal Processing by Richard Lyons

By Charan L. Posted on February 23, 2013 Posted in Engineering books, Proakis, Uncategorized

In every field there are books that just stand apart. They are so well written that they change your opinion about the subject. In fact, with most mathematical ideas if you understand them well, they no longer seem tedious, or …

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Folding and Aliasing

By Charan L. Posted on February 3, 2013 Posted in Digital Communications

Here is an java applet which lets you see the effect of sampling frequency and reconstruction of the signal. The signal is sampled, then goes through a low pass. You will see here what happens when sampling frequency is not …

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New look

By Charan L. Posted on January 31, 2013 Posted in DFT

In coming to this new format, I had to leave behind the board which has over 2000 members. There were quite a lot of people on it and I am sorry that it will not be accessible any more. However, …

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