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Direct-Sequence Systems

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Principles of Spread-Spectrum Communication Systems

Abstract

A spread-spectrum signal is one with an extra modulation that expands the signal bandwidth greatly beyond what is required by the underlying coded-data modulation. Spread-spectrum communication systems are useful for suppressing interference, making secure communications difficult to detect and process, accommodating fading and multipath channels, and providing a multiple-access capability. Spread-spectrum signals cause relatively minor interference to other systems operating in the same spectral band. The most practical and dominant spread-spectrum systems are direct-sequence and frequency hopping systems.

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Authors and Affiliations

  1. US Army Research Laboratory, Adelphi, MD, USA

    Don Torrieri

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  1. Don Torrieri
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© 2011 Springer Science+Business Media, LLC

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Torrieri, D. (2011). Direct-Sequence Systems. In: Principles of Spread-Spectrum Communication Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-9595-7_2

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  • DOI: https://doi.org/10.1007/978-1-4419-9595-7_2

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4419-9594-0

  • Online ISBN: 978-1-4419-9595-7

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