A fourth order [Sigma] [Delta] bandpass modulator

Author(s)
Hsu, Stephanie C
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Alternative title
4th order [Sigma] [Delta] bandpass modulator
Other Contributors
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Advisor
Charles G. Sodini.
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Abstract
A fourth order bandpass [Sigma] [Delta] modulator is proposed to digitize signals from a MEMS gyroscope. The modulator samples the amplitude-modulated signal at eight times the carrier frequency and achieves an SNR of 82dB with a sampling frequency of 640kHz and a bandwidtn o 1.oKnz. ms document snows that bandpass [Sigma] [Delta] modulation offers the advantage of a high oversampling rate without the need to demodulate the signal for lowpass [Sigma] [Delta] modulation.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.
 
In title on title page, "[Sigma]" and "[Delta]" appear as upper-case Greek letters. Cataloged from PDF version of thesis.
 
Includes bibliographical references (p. 57).
 
Date issued
2009
URI
http://hdl.handle.net/1721.1/61312
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Publisher
Massachusetts Institute of Technology
Keywords
Electrical Engineering and Computer Science.
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