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2004•Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering UniversityRequires access

Efficient QAM modulation system of software defined radio platform

Xiaolin Zhang

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Abstract

The digital down/up converter is one of the most important parts of the software defined radio platform.However,chips at present cannot satisfy the requirements of flexibility,accuracy and number of operation in performing the signal processing in software defined radio.In order to design an efficient and flexible DDC/DUC (system),this paper combined the signal processing of DDC/DUC with QAM system and presented a new (method) based on the analysis of this efficient broadband DDC/DUC system.QAM modulation was taken for example,and a detailed algorithm of a channel system with 0～30 MHz and 60 channels QAM was presented.The result shows that the method appears to be helpful to generalize the technique to other modulation systems and realize an efficient SDR communication platform.

About this research paper

What this paper is about

The digital down/up converter is one of the most important parts of the software defined radio platform.However,chips at present cannot satisfy the requirements of flexibility,accuracy and number of operation in performing the signal processing in software defined radio.In order to design an efficient and flexible DDC/DUC (system),this paper combined the signal processing of DDC/DUC with QAM system and presented a new (method) based on the analysis of this efficient broadband DDC/DUC system.QAM modulation was taken for example,and a detailed algorithm of a channel system with 0～30 MHz and 60 channels QAM was presented.The result shows that the method appears to be helpful to generalize the technique to other modulation systems and realize an efficient SDR communication platform.

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Available abstract

The digital down/up converter is one of the most important parts of the software defined radio platform.However,chips at present cannot satisfy the requirements of flexibility,accuracy and number of operation in performing the signal processing in software defined radio.In order to design an efficient and flexible DDC/DUC (system),this paper combined the signal processing of DDC/DUC with QAM system and presented a new (method) based on the analysis of this efficient broadband DDC/DUC system.QAM modulation was taken for example,and a detailed algorithm of a channel system with 0～30 MHz and 60 channels QAM was presented.The result shows that the method appears to be helpful to generalize the technique to other modulation systems and realize an efficient SDR communication platform.

Key concepts: Software-defined radio, QAM, Quadrature amplitude modulation, Electronic engineering, Modulation (music), Software, Computer science, Broadband

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