From the monthly archives:

March 2007

Zero-order hold and first-order hold based interpolation

In problem 9.14 of DSP-Proakis, the objective is to analyze the effect of zero-order interpolation and first-order interpolation to double the number of samples in the sinusoidal
while keeping the sampling frequency unchanged.
My take:
The first part of the problem (a) is to generate the sequence having half the frequency of . For zero-order [...]

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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 .

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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 [...]

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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.

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Modifying transmit signal

In DSP-Proakis, I found the problem 2.56 interesting as it provides insight into delta modulation. The task is to show that,

where
is any discrete time signal and
is the unit step function.

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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.

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