A fast and accurate technique for modelling and simulation of clock jitter in continuous-time sigma-delta (SD) modulators is introduced. In addition to its high speed compared to the traditional jitter simulation method, the proposed technique is still continuous-time based, which is more convenient than discrete-time based jitter modelling suggested in other publications. The mathematical prin...

In previous work [ 11, we have proposed an adaptive sigma delta modulator with improved dynamic range. The modulator adapts the step-size of the quantizer from estimates of the quantizer input. In this paper, we conduct a stability analysis of the new modulator.

A simple yet efficient class of coding systems employed extensively in coding correlated sources is the DPCM and delta modulation systems. We will study the performance of the adaptive and the simple delta modulators at high sampling rates and will compare that to the performance of well designed DPCM systems. The results are obtained by simulating the coding systems on a digital computer and u...

........................................................................................................................ ii Acknowledgements ...................................................................................................... iv Publications ................................................................................................................... v Table of

.................................................................................................................................................. 6 List of Figures .......................................................................................................................................... 9 List of Tables ...............................................................................

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T he building sector is the largest energy consumer in the world. Therefore, it is economically, socially, and environmentally signifi cant to reduce the energy consumption of buildings. Achieving substantial energy reduction in buildings may require rethinking the whole processes of design, construction , and operation of a building. This article focuses on the specifi c

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