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논문 기본 정보

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제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2001
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    초록·키워드

    In this paper, we have designed the VHDL module of DS/SS-QPSK wireless modem processor for digital data communication. The spread spectrum method is used for modem processor, because this method guarantees good frequency efficiency and higher security. Also, it guarantees good performance in digital communication system under multi-path interferences. The differential encoder and decoder are used for simple circuit composition in the signal detection. For the synchronization of receiver, matched filter and power detector are used. And the IF modulation/demodulation of QPSK method is used in the digital level. The transmitter of VHDL modem processor consists of differential encoder, PN code generator, and QPSK modulator. And the receiver consists of down converter/ID filter, matched filter, timing recovery caused by power detection, and differential decoder. Therefore, we have designed the VHDL modem processor and performed simulation for the design verification.

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      UCI(KEPA) : I410-ECN-0101-2014-569-000768975