By Ulrich Karrenberg, R. Hooton, U. Boltz
This leading edge ebook and CD-ROM studying procedure deals scholars and academics a hands-on, interactive instrument that makes the suggestions and instruments of recent, computer-based sign processing instantly comprehensible. equipped round interactive software program (DASYLab) and supported by way of 240 illustrations, Karrenberg’s self-tutorial emphasizes the underlying ideas of signs and platforms whereas warding off mathematical versions and equations. This method makes the cloth extra obtainable to readers who could lack mathematical and programming sophistication but have to use or educate others within the abilities. The CD comprises all courses, movies, manuals, and the full textual content. The S-version of DASYLab for home windows presents an interactive improvement setting for the photograph programming of sign processing platforms, and, extra in general, microelectronics platforms. via lively hyperlinks, block diagrams, a computer sound card, and a microphone, clients practice sign processing of actual indications, reaching a visceral wisdom of the techniques and strategies. greater than 2 hundred pre-programmed structures and transparencies are included.
Interactive Multimedia advent to sign Processing has been offered a prestigious digita2002 award. Digita awards are essentially the most very important multimedia prizes in Germany's academic marketplace. They are offered each year to the simplest academic software program in a variety of categories.
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Additional info for An Interactive Multimedia Introduction to Signal Processing
The ripple eontent ofthe eumulative oseillation is equal to the highestfrequeney eontained. Even when the value of signals is equal to zero over a time domain ~t, they nevertheless contain sinusoidal oscillations during this time. Strictly speaking, "infinitely" high frequencies must also be contained because otherwise only "round" signal progressions would result. The "smoothing out effect" is the result ofhigh and very high frequencies. Page 52 Chapter 2 Signals in the time and frequency domain In Illustration 35 we see a value ("offset") in the amplitude spectrum at the position f= 0.
DASYLab provides many different visualisation methods for measurement data and signal processes. First create the circuit illustrated by means of various visualisation components (see above ). Try to design the size and position of the displays as on the screen. Select a sinusoidal signal with the frequency f = 2 Hz. (a) Now start the system above left and watch all the displays for some length oftime. Try to find out which measurement data refer to the analogue instrument, the digital instrument or the bar chart.
The narrower the pulse beeomes, the bigger the deviation between the sum of the first (here N = 32) harmonies and the reetangular pulse appears. The differenee between the latter and the eumulative oseillation is biggest where the signal ehanges most rapidly, for example at or near the pulse flanks . Where the signal is momentarily equivalent to zero - to the right and lefl of a pulse - all the (infinite number of) sinusoidal signals add up to zero; they are present but are eliminated by interferenee.
An Interactive Multimedia Introduction to Signal Processing by Ulrich Karrenberg, R. Hooton, U. Boltz