Cybernetics and programming
Journal Menu
> Issues > Rubrics > About journal > Authors > About the Journal > Requirements for publication > Council of Editors > Peer-review process > Policy of publication. Aims & Scope. > Article retraction > Ethics > Online First Pre-Publication > Copyright & Licensing Policy > Digital archiving policy > Open Access Policy > Open access publishing costs > Article Identification Policy > Plagiarism check policy
Journals in science databases
About the Journal

MAIN PAGE > Back to contents
Publications of Malashkevich Vasilii Borisovich
Cybernetics and programming, 2013-5
Malashkevich I.A., . - An efficient algorithm for data decimation pp. 1-6


Abstract: This paper presents an efficient algorithm for fast data decimation of discrete transformations. The article gives the characteristic equation and the implementation of the algorithm in Object Pascal. In the practice of digital signal processing the algorithms of signals spectral transforms (such as fast Fourier transform, Walsh, Haar discrete wavelet transform) are widely used. One of the expensive operations in these algorithms is the decimation of data - grouping of data with even and odd numbers. Traditionally this operation is performed by allocating additional memory. The authors propose an algorithm of grouping that does not require the use of additional memory for storing arrays and solve problems decimation of O (N) operations. It is shown that all the permutations of the elements are made through a series of chain movements, each beginning with the odd elements of the array data. The analysis of the algorithm for different values of N indicates the number and chain length varies. Test executions of the algorithm show its’ high performance.
Other our sites:
Official Website of NOTA BENE / Aurora Group s.r.o.
"History Illustrated" Website