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Now showing items 1-8 of 8
Analysis and filtering of time-varying signals
(Virginia Polytechnic Institute and State University, 1988)
The characterization, analysis and filtering of a slowly time-varying (STV) deterministic signal are considered. A STV signal is characterized as a sophisticated signal whose windowed sections are elementary signals. Mixed ...
Predictive image coding with Pseudo-Lapacian edge detector
(Virginia Polytechnic Institute and State University, 1986)
Several edge-adaptive dual-mode Predictive coding systems are proposed for encoding monochrome video signals. These algorithms use the Pseudo-Laplacian edge detector to switch between the textural coding and the edge coding. ...
Study of slant path attenuation ratios derived from a dual- polarized radar
(Virginia Tech, 1990)
Small-signal analysis and design of a distributed power system
(Virginia Tech, 1990-02-05)
<p>A small-signal analysis of a two-stage distributed power system is performed. Although the distributed power system is composed of conventional PWM converters, the analysis methods can be extended to systems using other ...
Parallel processor architecture for a digital beacon receiver
(Virginia Tech, 1990)
Evaluation of linear DC motor actuators for control of large space structures
(Virginia Tech, 1988-05-05)
This thesis examines the use of a linear DC motor as a proof mass actuator for the control of large space structures. A model for the actuator, including the current and force compensation used, is derived. Because of the ...
Development of experiments for the digital signal processing teaching laboratory
(Virginia Tech, 1988-07-05)
Digital Signal Processing (DSP) is a technology-driven field which develops as early as mid-1960 when computers and other digital circuitry became fast enough to process large amounts of data efficiently. Since then ...
Signal reconstruction from discrete-time Wigner distribution
(Virginia Tech, 1985-03-18)
<p>Wigner distribution is considered to be one of the most powerful tools for time-frequency analysis of rumvstationary signals. Wigner distribution is a bilinear signal transformation which provides two dimensional ...