Oversampling analog-to-digital and digital-to-analog converters are gaining more popularity in many signal processing applications. Delta-sigma modulators are used in practical applications of oversampling systems because of their apparent practical advantage over other oversampling converters in terms of insensitivity to the inevitable imperfection of the analog circuitry. In Δ∑ modulators, analog integrators are always very important components and are usually modeled as ideal in real applications. However, theoretical analysis shows that the integrator nonideality due to capacitor mismatching and finite op-amp gain cause large signal-to-noise ratio degradation. The primary disadvantages of the dual-quantization and cascade modulators are that they rely on the precise cancellation of terms derived from two separate circuits, one analog and one digital, and that there are added complexities on the digital sides. This thesis describes digital adaptive correction of nonidealities in dual-quantization and cascade modulators. The sources and effects of nonidealities in a first-order delta-sigma loop are analyzed. Simple correction schemes are presented, and theoretical SNR improvements are calculated and compared with simulation results. / Graduation date: 1993

Thesis (PhD)--University of South Australia, 2001

Bibliography: p. 235-243. / xxvi, 243 p. : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Concerned with the mathematical characterisation and adaptive processing of narrowband high frequency signals received by a very wide aperture antenna array after reflection from the ionosphere. / Thesis (Ph.D.)--University of Adelaide, Dept. of Electrical and Electronic Engineering, 2000

Thesis (Ph. D.)--Ohio University, June, 1990. / Title from PDF t.p.

Thesis (Ph. D.)--University of Canterbury, 2008. / Typescript (photocopy). "December 2008." Includes bibliographical references (p. 165-174). Also available via the World Wide Web.

Thesis (M.S. in Electrical Engineering and M.S. in Applied Physics)--Naval Postgraduate School, June 2005. / Thesis Advisor(s): Joseph Rice, Roberto Cristi. Includes bibliographical references (p. 117-119). Also available online.

Thesis (Ph.D.)--McMaster University, 2003. / Advisor: James P. Reilly. Includes bibliographical reference (leaves 142-151). Also available via World Wide Web.

Thesis (M.Phil.) - University of Queensland, 2006. / Includes bibliography.

Thesis (Ph. D.)--University of Washington, 2005. / Vita. Includes bibliographical references (leaves 124-137).

Thesis (Ph. D.)--University of Rhode Island, 2006. / Includes bibliographical references (leaves 99-100).