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Multivariable analysis of spectral measurements for the characterization of semiconductor processes
(Massachusetts Institute of Technology, 2001)
The availability of affordable and reliable optical sensor technology and the abundance of data that these sensors now provide have created new opportunities to better characterize and control semiconductor processes in ...
Quantum signal processing
(Massachusetts Institute of Technology, 2002)
Quantum signal processing (QSP) as formulated in this thesis, borrows from the formalism and principles of quantum mechanics and some of its interesting axioms and constraints, leading to a novel paradigm for signal ...
Speech Representation Models for Speech Synthesis and Multimodal Speech Recognition
(Massachusetts Institute of Technology, 2016)
The field of speech recognition has seen steady advances over the last two decades, leading to the accurate, real-time recognition systems available on mobile phones today. In this thesis, I apply speech modeling techniques ...
The thermodynamic properties of Markov processes
(Massachusetts Institute of Technology, 1985)
Interdigital dielectrometry sensor design and parameter estimation algorithms for non-destructive materials evaluation
(Massachusetts Institute of Technology, 1999)
The major objective of this thesis is to develop instrumentation and parameter estimation algorithms for nondestructive measurement of non-homogeneous material property profiles with fringing electric field dielectrometry ...
Determining molecular conformation from distance or density data
(Massachusetts Institute of Technology, 2000)
The determination of molecular structures is of growing importance in modern chemistry and biology. This thesis presents two practical, systematic algorithms for two structure determination problems. Both algorithms are ...
Methods in wave propagation and scattering
(Massachusetts Institute of Technology, 2001)
Aspects of wave propagation and scattering with an emphasis on specific applications in engineering and physics are examined. Frequency-domain methods prevail. Both forward and inverse problems are considered. Typical ...
Control under communication constraints
(Massachusetts Institute of Technology, 2000)
Phase manipulation for efficient radio frequency transmission
(Massachusetts Institute of Technology, 2012)
Power amplifiers (PAs) for microwave communications are generally the most power-hungry element of a transmitter. High linearity is required for modern digital communications standards, and often is achieved at the expense ...
Enhancing spectrum utilization through cooperation and cognition in wireless systems
(Massachusetts Institute of Technology, 2013)
We have seen a proliferation of wireless technologies and devices in recent years. The resulting explosion of wireless demand has put immense pressure on available spectrum. Improving spectrum utilization is therefore ...