Improvement of the performance of FM-CW radar systems by using direct digital synthesizers: comparison with voltage controlled oscillators

J Figueras i Ventura, HWJ Russchenberg

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    5 Citations (Scopus)

    Abstract

    Linear frequency modulated continuous wave (LFM-CW) radars require high linearity and good phase noise characteristics of its modulated signal to obtain a good resolution and sensitivity. Direct digital Synthesis (DDS) is becoming an increasingly competitive alternative to traditional Voltage Controlled Oscillators (VCO) to perform the modulation. Although ther are plenty of puvlications describing the performance of the DDS and he VCO as applied in FM-CW radars. In this paper the performance of DDS is analyzed both theoretically and with measurements. The performance of DDS is analyzed both theoretically and with measurements. The performance of DDS in a linear frequency modulated continuous wave (LFM-CW) radar system, (the Transportable Atmospheric Radar TARA developed in IRCTR), is compared to a VCO demonstrating its superiority. DDS is , therefore, expected to play an important role in radar sytems in the near future.
    Original languageUndefined/Unknown
    Title of host publicationIRS 2006: Proceedings International Radar Symposium
    Editors Krzysztof Kulpa, Michal Piotrkowski, Kryzystof Kulpa, Michael Piotrkowski
    PublisherInstitute of Electronic Systems, Warsaw Univ of Technology
    Pages343-346
    Number of pages4
    ISBN (Print)8372076219
    Publication statusPublished - 2006

    Publication series

    Name
    PublisherInstitute of Electronic Systems, Warsaw Univ of Technology

    Bibliographical note

    IEEE Catalog number 06EX1284

    Keywords

    • conference contrib. refereed
    • Conf.proc. > 3 pag

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