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What is CDMA Codes: PN Sequences Explained about?
This document discusses CDMA codes and their usage. It describes the Interim Standard 95 (IS-95) digital cellular system which uses CDMA. It explains how pseudo-random noise (PN) sequences are generated using linear feedback shift registers to produce maximal length sequences. There are two main types of PN sequences used in CDMA - short codes and long codes. Walsh codes, which are the output of a Hadamard matrix, are also used. The document provides examples of how PN sequences are generated and their prop
- Author
- mohamed amee
- Language
- EN