2026-09-19T11:48:00Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/80772 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Sarwate, Dilip V. Song, Zukui 2015-09-25T20:08:05Z 2015-09-25T20:08:05Z 10000-01-01 2002 2002 When the input to a PWM modulator is a sequence of uniformly spaced samples of the original signal, the resulting uniform-sampling PWM signal has high distortion. It is possible to eliminate the distortion completely by converting the uniform-sampling input sequence into a natural-sampling sequence before applying it to the PWM modulator. In this thesis, it is shown that it is possible to express the natural-sampling sequence exactly in terms of the derivatives of the input signal raised to various powers. Since the input signal is known only through its sample values, numerical methods are used to devise high-accuracy, low-computational-complexity, methods for computing the natural-sampling sequence from the uniform-sampling sequence. To simplify the implementation of real applications, the noise shaping technique is employed to reduce the resolution of quantization without compromising the signal to quantization noise ratio. Made available in DSpace on 2015-09-25T20:08:05Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3044230.pdf: 3689915 bytes, checksum: 15ec369d3fe01dc2316d925988995a9b (MD5) Previous issue date: 2002 Embargo set by: Seth Robbins for item 82054 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 105 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002. http://hdl.handle.net/2142/80772 (MiAaPQ)AAI3044230 eng Engineering, Electronics and Electrical Digital Pulse Width Modulation: Analysis, Algorithms, and Applications text Electrical Engineering Electrical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.