A parallel digital hardware generator of White Gaussian noise stressing on crest factor

Z. Xu, J. Chen, Lu Xu, W. Wang

    Research output: Chapter in Book/Conference paperConference paper

    Abstract

    White Gaussian noise(WGN) generator is widely used in performance tests for satellite communication systems because WGN is omnipresent. This paper proposes a two-stage parallel digital hardware generator of WGN stressing on crest factor. A parallel correlation-eliminated Shift-Register Generator (SRG) is proposed in the stage of white uniformed noise(WUN) generation. And the stage of transformation from WUN to WGN is realized by an improved mapping table controlled by crest factor. This paper investigates many noise source products and concludes detailed design criterions, in which crest factor and Gaussian nature are extremely important. Compared with Additive Lagged-Fibonacci Generator (ALFG) and the conventional correlation-eliminated SRG, our method uses much fewer hardware resources and lowers the requirement of synchronous clock. Experiments show our improved mapping table makes the measured values of crest factor reach the preset. The result noise passes the goodness of fit test of normality and performs sharp auto-correlation in zero. © 2012 IEEE.
    Original languageEnglish
    Title of host publication2012 18th Asia-Pacific Conference on Communications (APCC)
    Place of PublicationUSA
    PublisherIEEE, Institute of Electrical and Electronics Engineers
    Pages456-461
    VolumeN/A
    ISBN (Print)9781467347266
    DOIs
    Publication statusPublished - 2012
    Event2012 18th Asia-Pacific Conference on Communications (APCC) - Jeju Island, Korea, Democratic People's Republic of
    Duration: 15 Oct 201217 Oct 2012

    Conference

    Conference2012 18th Asia-Pacific Conference on Communications (APCC)
    CountryKorea, Democratic People's Republic of
    CityJeju Island
    Period15/10/1217/10/12

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