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.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2015 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Torrieri, D. (2015). Chapter 2 Direct-Sequence Systems. In: Principles of Spread-Spectrum Communication Systems. Springer, Cham. https://doi.org/10.1007/978-3-319-14096-4_2
Download citation
DOI: https://doi.org/10.1007/978-3-319-14096-4_2
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-14095-7
Online ISBN: 978-3-319-14096-4
eBook Packages: EngineeringEngineering (R0)