대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

SSB/BPSK-DS/CDMA Baseband 모뎀 설계 및 구현

Implementation of SSB/BPSK-DS/CDMA Baseband Modem

  • 노시창 (전북대학교 전자정보공학부 정보통신연구소) ;
  • 임명섭 (전북대학교 전자정보공학부 정보통신연구소)
  • 발행 : 2001.06.01
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초록

SSB(Single Sideband) modulation scheme is high bandwidth efficient method in the mobile communication system compared with present DSB(Double Sideband) modulation scheme. Using the othogonality between inphase PN code and Hilbert transformed quadrature PN code, we propose phase estimation structure that enables coherent demodulation in the reverse link basestation receiver Several system characteristics, bit error rate and phase error variance, are simulated and compared with balanced QPSK DS/CDMA system. To verify system performance, SSB/BPSK-DS/CDMA test board is implemented using FPGA chips.

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