Now showing items 1-6 of 6
Theory and applications of the shift-invariant, time-varying and undecimated wavelet transforms
In this thesis, we generalize the classical discrete wavelet transform, and construct wavelet transforms that are shift-invariant, time-varying, undecimated, and signal dependent. The result is a set of powerful and efficient ...
System identification for robust control
In the design of a robust control system, one needs a nominal model together with a quantitative bound on the uncertainty that results from under-modeling and disturbances. In this thesis we do not intentionally seek a ...
Performance analysis of parallel I/O models for external mergesort
Since the I/O subsystem is the bottleneck in external mergesort, I/O parallelism can result in substantial performance improvements. Concurrency can be introduced by overlapping I/O requests at different disks, and the ...
Software components for simulation and optimization
Explicit-time finite-difference approximations to the acoustic wave equation admit data parallelism, in which the problem domain (a grid) is sub-divided among several processors. Communication must take place between the ...
Passivity preserving model reduction via interpolation of spectral zeros: Selection criteria and implementation
This thesis presents spectral zero selection criteria for a rigorous theory on passivity preserving model reduction via interpolation of spectral zeros. For linear time invariant systems in circuit simulation, passivity ...
Logic design for reliability
Reliability of logic circuits is emerging as an important concern that may limit the benefits of continued scaling of process technology and the emergence of future technology alternatives. Scaling of CMOS devices below ...