2005•Journal of Hebei UniversityRequires access

Study of Direct Sequence Spread Spectrum Receiver Base on Software Radio

Boli Liu

Abstract

On the basis of software radio, a mathematics model about DSSS receiver is described,and a realization diagram of wide_scope intermediate frequency sampling DSSS receiver is builded. The design scheme about analogy preconditioning,broadband A/D converting,DDC and DSP are given according to the technical level of the chips.It′s needed to apply software radio to spread spectrum system.It is the groundwork of the reality multi_band and mulit_mode CDMA receivers be provided.

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Key concepts: Direct-sequence spread spectrum, Software-defined radio, Broadband, Spread spectrum, Radio receiver design, Software, Digital radio, Frequency-hopping spread spectrum