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The Application Research on DSP-based Software Radio's Digital Modem Technology

Mao Xiao-yan

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Abstract

The system is mainly studying the technology of the modem based on the thought of software defined radio.We try to realize many kinds of functions of modulation and demodulation such as FSK,QPSK,QAM on the platform of software defined radio centring on the digital signal processor(DSP) of TMS320C6711 in the TI Company.By operating the suppositional platform in the host machine,we not only try to choose the proper the format of modulation and demodulation and measure the datum but also observe and analyse QPSK as an example.

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What this paper is about

The system is mainly studying the technology of the modem based on the thought of software defined radio.We try to realize many kinds of functions of modulation and demodulation such as FSK,QPSK,QAM on the platform of software defined radio centring on the digital signal processor(DSP) of TMS320C6711 in the TI Company.By operating the suppositional platform in the host machine,we not only try to choose the proper the format of modulation and demodulation and measure the datum but also observe and analyse QPSK as an example.

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Available abstract

The system is mainly studying the technology of the modem based on the thought of software defined radio.We try to realize many kinds of functions of modulation and demodulation such as FSK,QPSK,QAM on the platform of software defined radio centring on the digital signal processor(DSP) of TMS320C6711 in the TI Company.By operating the suppositional platform in the host machine,we not only try to choose the proper the format of modulation and demodulation and measure the datum but also observe and analyse QPSK as an example.

Key concepts: Software-defined radio, Demodulation, Computer science, Digital signal processing, Frequency-shift keying, Software, Phase-shift keying, Digital radio

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