gs from the acoustic fading channel, and it reconstructs the transmitted information without channel estimation, which saves energy and reduces plexity putation of the system and can be used in multi-user underwater munication and establish munication bined with OFDM spread spectrum technology.In this paper, the algorithm was carried on computer simulation experiment and pool experiment. The results showed that: the combination of OFDM technology with spread spectrum technology improves the performance of underwater acoustic communication system, and provides reliable guarantee and high-quality for point-to-point underwater munication and multi-user underwater munication.Key words: underwater munication; OFDM; spread spectrum; multi-user万方数据
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