Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1,777,030,181 visitors served.
forum mailing list For webmasters
?
New: Language forums
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Walsh code

   Also found in: Wikipedia 0.01 sec.

Walsh code

Also known as "Walsh-Hadamard code," it is an algorithm that generates statistically unique sets of numbers for use in encryption and cellular communications. Known as "pseudo-random noise codes," Walsh codes are used in direct sequence spread spectrum (DSSS) systems such as QUALCOMM's CDMA. They are also used in frequency hopping spread spectrum (FHSS) systems to select the target frequency for the next hop. See CDMA.

          Walsh Code Algorithm

          (a', b') = (a+b, a-b)



How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
? Mentioned in ? References in periodicals archive
 
Further details of Walsh code assignments for traffic channels along with allowable data rates and corresponding post-interleaver repetition rates can be found in [1].
A link-level simulator of the cdma2000 reverse-link physical layer by Wyatt-Millington R. / Journal of Research of the National Institute of Standards and Technology
It is capable of lightning-fast scans in multiple frequency bands, with multiple technologies, doing PN and Walsh Code, CPICH, DVCC, and BSIC decoding simultaneously.
Comarco Wireless Test Solutions Supplies ZK Celltest with Latest OEM ... by Business Wire
More results
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2009 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.