Waveform
The waveform , in the German language also waveform , is the shape and form of the temporal course of the change of a quantity of a vibration . It can also be described by an abstract representation. Usually the periodic or aperiodic course of physical quantities is considered, less often cyclic social changes.
In acoustics, waveform denotes the envelope curve of the acoustic oscillations in an oscillogram of graphical user interfaces of audio editors but also of other music software such as software samplers or DJ programs .
In radar technology , the waveform is a special modulation pattern of the transmission energy and comprises all types of modulation including switching the transmitter on and off via a pulse sequence . Various modulation patterns are used here to uniquely assign the received echo signals to the causing transmission pulses in order to determine their exact transit time . These modulation patterns are generated in special, often freely programmable waveform generators .
literature
- Edwin C. Craig: Electronics via Waveform Analysis. Springer Verlag, New York 1993, ISBN 0-387-94015-4 .
- Philipp Ackermann: Computer and Music An introduction to digital sound and music processing, Springer Verlag, Vienna 1991, ISBN 978-3-211-82291-3 .
Web links
- Acquiring waveforms on the oscilloscope (accessed July 27, 2018)
- Customized waveforms (accessed July 27, 2018)
- Generate, measure and evaluate radar waveforms (accessed on July 27, 2018)
- Waveform based source localization compared to conventional methods (accessed July 27, 2018)