5CHARLES B,ANDY T.Practical HF digital voice[EB/OL].(2000-10-21)[2010-02-02].http://www.arrl.org/tis/info/HTML/digital_voice/index.html.
6SHI Chaojian,HU Qinyou.Internet-based integration of multiple shiphandling simulators:an interim report[C] // Proc International Association of Maritime Universities 6th Annual General Assembly and Conference.Malmo:WIT Press,2005:55-64.
7SHI Chaojian.Application and functional requirements of simulator in harbor and waterway design[J].J Korean Navigation & Port Res,2002,26(1):35-42.
8AMBE-1000 Vocoder Chip User's Manual Version 3.0, Digital Voice Systerms,Inc,1999.
9AMBE-1000 Vocoder Chip User's Manual Version 3.0, Digital Voice Systerms,Inc,1999.
10AMBE-1000TM Vocoder Chip User' s Manual, Version 3. 1. Digital Voice Systems Inc, 2000
