Digital Processing and Reconstruction of Complex Signals

This book details methods for analyzing, processing and reconstructing complex signals. It presents a newly developed method for the calculation of basic parameters of the processed voltage and current signals.

In real electronic systems, voltage and current signals are not necessarily of a periodical quantity, due to the presence of nonharmonic components or/and possible stochastic variation. This book presents in three parts methods for analyzing and processing and reconstructing complex signals.

The first part of this book is dedicated to the problem of measurements of the basic electric quantities in electric utilities, both from the aspect of accuracy of this type of measurements and the possibilities of simple and practical realization. The second part presents a reconstruction of trigonometric polynomials, a specific class of band-limited signals, from a number of integrated values of input signals. The third part deals with the problem of estimating the value of the active power of the ac signal in the presence of subharmonics and interharmonics. The analysis makes use of the most general model of the voltage and current signal, i.e. the most complex spectral content that can be expected to appear in practice.

Inhalt
Digital Processing of Synchronously Sampled ac Signals in Presence of Interharmonics and Subharmonics.- Reconstruction of Nonuniformly Sampled ac Signals.- A New Method for Processing of Basic Electrical Values Based on Definition Formula in Time Domain.