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2010•Modern Electronics TechniqueRequires access

A Wide Band IF Digital Platform

Peng Bo

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Abstract

In order to solve the problems that the wide band intermediate frequency signal can′t be processed in the field of software radio timely,several key technologies and basic theories in the field of software radio focused on digital intermediate frequency technology are studied and discussed.An intermediate frequency digital processing platform built on CPCI architecture is designed and realized,the theory of the platform and the principle scheme are presented.With the signal of Motorola RF radio,the platform is validated by digital down frequency conversion and orthogonal FM demodulation on the actual signal.

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What this paper is about

In order to solve the problems that the wide band intermediate frequency signal can′t be processed in the field of software radio timely,several key technologies and basic theories in the field of software radio focused on digital intermediate frequency technology are studied and discussed.An intermediate frequency digital processing platform built on CPCI architecture is designed and realized,the theory of the platform and the principle scheme are presented.With the signal of Motorola RF radio,the platform is validated by digital down frequency conversion and orthogonal FM demodulation on the actual signal.

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Available abstract

In order to solve the problems that the wide band intermediate frequency signal can′t be processed in the field of software radio timely,several key technologies and basic theories in the field of software radio focused on digital intermediate frequency technology are studied and discussed.An intermediate frequency digital processing platform built on CPCI architecture is designed and realized,the theory of the platform and the principle scheme are presented.With the signal of Motorola RF radio,the platform is validated by digital down frequency conversion and orthogonal FM demodulation on the actual signal.

Key concepts: Software-defined radio, Digital radio, Computer science, Radio frequency, Intermediate frequency, Demodulation, Key (lock), Software

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