Underwater Acoustic Communication using Multiplexing Technique for Multipath Measurement with Array Processing

水声通信在水下活动中有着广泛的应用。为了在浅水环境中提供可靠的通信，必须采用能够应对多径和多普勒扩频影响的通信方案。为了在浅水环境下进行可靠的通信，在试验槽和港口中分别考虑了正交信分复用（OSDM）和阵列处理的UWA通信性能。实验结果表明，在强多径环境下，该方案比现有方案具有更好的通信质量。解决多普勒传播是未来的一个问题。

Underwater acoustic (UWA) communication is widely used for underwater activities. To provide reliable communication in shallow water, communication scheme to cope with the effects of multipaths and Doppler spread is necessary. To conduct reliable communication in shallow water, performance of UWA communication using orthogonal signal division multiplexing (OSDM) with array processing was considered in both a test-tank and a harbor. It was found that the proposed scheme could achieve the best communication quality than existing schemes under heady multipath environment. Addressing Doppler spread is an issue in the future.