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Delta modulation in discrete cosine transform

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2 Author(s)
Pogribny , W. ; Fac. of Telecommun. & Electr. Eng., UTA in Bydgoszcz, Poland ; Drechny, M.

Delta modulation (DM) allows for the representation of the signals in a digital form with small word length and at the same time they ensure a high fast-acting and simplicity of specialized processors. The use of DM for the economical representation and efficient processing of the signals needs the development of the existing methods and the working out of fast and accurate processing methods in real time. Therefore discrete cosine transform (DCT) methods were proposed in mixed formats. In this work the application of differences to new fast DCT algorithms in differential formats is shown. At the same time, on the basis of computer simulation, the accuracy of these algorithms has been examined by means of voice signal processing. The use of DCT algorithms in such formats is advantageous in realization of multiprocessor systems.

Published in:

Intelligent Signal Processing, 2003 IEEE International Symposium on

Date of Conference:

4-6 Sept. 2003