Analog

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Sigma delta modulation

by Krishna Sankar on April 3, 2007

In an earlier post, it was mentioned that delta modulator without the quantizer is identical to convolving an input sequence with . Let us first try to validate that thought using a small MATLAB example [...]

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Signal to quantization noise in quantized sinusoidal

by Krishna Sankar on March 19, 2007

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

by Krishna Sankar on March 18, 2007

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 [...]

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