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Design of DUC/DDC for the Underwater Basestation Based on Underwater Acoustic Communication

수중기지국 수중 음향 통신을 위한 DUC/DDC 설계

  • Kim, Sunhee (Department of System Semiconductor Engineering, Sangmyung University)
  • 김선희 (상명대학교 시스템반도체공학과)
  • Received : 2017.03.30
  • Accepted : 2017.05.12
  • Published : 2017.05.31

Abstract

Recently, there has been an increasing need for underwater communication systems to monitor ocean environments and prevent marine disasters, as well as to secure ocean resources. Most underwater communication systems adopted acoustic communication with a consideration of attenuation, absorption, and scattering in conductive sea water, and developed fully digital modems based on processors. In this study, a digital up converter (DUC) and a digital down converter (DDC) was developed for an underwater basestation based on underwater acoustic communication systems. Because one of the most important issues in underwater acoustic communication systems is low power consumption due to environmental problems, this study developed a specific hardware module for DUC and DDC. It supported four links of underwater acoustic communication systems and converted the sampling rate and frequency. The systemwas designed and verified using Verilog-HDL in ModelSim environment with the test data generated from baseband layer parts for an underwater base station.

Keywords

cic filter;digital down converter;digital up converter;underwater acoustic communication;underwater basestation

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