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New algorithms for designing unimodular sequences with good correlation properties
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Automatic control.
2009 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 57, no 4, 1415-1425 p.Article in journal (Refereed) Published
Abstract [en]

Unimodular (i.e., constant modulus) sequences with good autocorrelation properties are useful in several areas, including communications and radar. The integrated sidelobe level (ISL) of the correlation function is often used to express the goodness of the correlation properties of a given sequence. In this paper, we present several cyclic algorithms for the local minimization of ISL-related metrics. These cyclic algorithms can be initialized with a good existing sequence such as a Golomb sequence, a Frank sequence, or even a (pseudo)random sequence. To illustrate the performance of the proposed algorithms, we present a   number of examples, Including the design of sequences that have virtually zero autocorrelation sidelobes In a specified lag interval and of long sequences that could hardly be handled by means of other algorithms previously suggested in the literature.

Place, publisher, year, edition, pages
2009. Vol. 57, no 4, 1415-1425 p.
Keyword [en]
Autocorrelation, cyclic algorithms, integrated sidelobe level, merit factor, unimodular sequences, waveform design
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:uu:diva-104507DOI: 10.1109/TSP.2009.2012562ISI: 000264247400016OAI: oai:DiVA.org:uu-104507DiVA: diva2:219867
Available from: 2009-05-28 Created: 2009-05-28 Last updated: 2010-08-12Bibliographically approved

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Stoica, Peter

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