2007•Modern Electronics TechniqueRequires access

Analysis and Application of Direct Sequence Spread Spectrum Technology

Zhou Yingxia

Abstract

Spread spectrum communication is used more and more widely in satellite communication,data transmission,mobile communication and wireless data communication for its high keeping secrets and anti-jamming.In addition,it is very easy to implement multiple access transmission.At present,DSSS system is a typical spread spectrum mode,the principle of spread spectrum and despreading is very important to us,in favor of understanding the essence of DSSS.The paper introduces the basic working principle and builds up system model of DSSS,and spread spectrum and despreading is analyzed in detail.DSSS technology′s advantages are presented.At last,the application of DSSS technology at home and abroad is also given.

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Key concepts: Direct-sequence spread spectrum, Spread spectrum, Frequency-hopping spread spectrum, Wireless, Computer science, Telecommunications, Transmission (telecommunications), Process gain