From the category archives:

Miscellaneous

Support Vibha’s Dream Mile event

My friend Mr. Balaji volunteers for Vibha, a non-profit  organization whose mission is to ensure that every underprivileged child attains his or her right to education, health and opportunity.
Vibha, which was founded in 1991 has a volunteer network of 825 members spread across Atlanta, Austin, Bay Area, Boston, Chicago, Dallas, Houston, Jacksonville, Los Angeles, [...]

0 comments Read the full article →

Books

Happy holidays!

Wishing every one merry Christmas and a great year 2009 and beyond.

I will list down some of the books which I have on my desk. They help me with the math and simulations

Digital Communication: Third Edition, by John R. Barry, Edward A. Lee, David G. Messerschmitt

2 comments Read the full article →

Join dspLog at Google FriendConnect

We have installed Google FriendConnect on dspLog.com. With Google Friend Connect, you can:
(a) You can interact with other members who have similiar interests. You will come to know the list of other sites (apart from dspLog.com) where the members have joined. You can add a member as a friend and so on.
(b) You can invite [...]

0 comments Read the full article →

Linear to log conversion

In signal processing blocks like power estimation used in digital communication, it may be required to represent the estimate in log scale. This post explains a simple linear to log conversion scheme proposed in the DSP Guru column on DSP Trick: Quick-and-Dirty Logarithms. The scheme makes implementation of a linear to log conversion [...]

10 comments Read the full article →

Negative Frequency

Last week, I received an email from Mr. Kishore. He was wondering about the physical significance of negative frequency. Does negative frequency really exist?
Though I have seen conflicting views on the net (thread in complextoreal.com, thread in comp.dsp), my perspective is that negative frequency exist. The concept of negative frequency helps me a lot to [...]

11 comments Read the full article →

Summary – feedback on [dspLog], July 2008

On July30th, 2008 I had sent a request for feedback to 93 subscribers who have opted to receive articles over email. As on 3rd August, I received the response from around 8 persons. Not bad, around 8.5% response. Thanks a lot for the feedback. I will summarize the response from the group and note down [...]

1 comment Read the full article →

Using Toeplitz matrices in MATLAB

The definition of Toeplitz matrix from [1] is:
A matrix is said to be Toeplitz if the elements are determined completely by the difference .

5 comments Read the full article →

Signal to quantization noise in quantized sinusoidal

In problem 4.37 of DSP-Proakis [1], the task is to analyze the total harmonic distortion in quantized sinusoidal, where .

2 comments Read the full article →

Harmonic distortion in digital sinusoidal generators

In Problem 4.36 of DSP-Proakis [1], the task is to provide insights into harmonic distortion which may be present in practical sinusoidal generators. Consider the signal
, where .
My take:
The discrete time signal of fundamental period can consist of frequency components separated by radians or cycles (Refer Section4.2 in [1]).
The Fourier series coefficient [...]

0 comments Read the full article →

LaTex on blogger not working?

I noticed that the scripts provided from http://wolverinex02.googlepages.com/emoticonsforblogger2 for writing equations on blogger stopped working.
Reason:
The address of the public mimeTEX server is changed to /cgi-bin/mimetex.cgi? from Thursday, March15 2007.

4 comments Read the full article →

Trying out LaTeX on Blogspot

Quick check of on Blogspot, thanks to the information provided here.

Good ! It works…would like to have a better formatting though. Anyhow this will do for now.

0 comments Read the full article →