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The Application of Software Radio Techniques to Underwater Acoustic Communications

机译：软件无线电技术在水下通信中的应用

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In recent years there has been considerable effort to translate the techniques used to achieve performance gains in the RF community into similar performance gains in the Underwater Acoustic field. Initially, developments focused on moving away from Single Side Band signals towards Direct Sequence Spread Spectrum, resulting in improved tolerance to fading, noise and reverb. More recently, attempts to increase data rates have utilized complex techniques such as MIMO, resulting in a step improvement in the available data rate. However, a plethora of underwater communication approaches are now available, most of which are based on proprietary protocols, and this has resulted in interoperability issues. This problem also exists in the RF domain and is being resolved through the development of Software and Cognitive radio approaches. This paper describes the latest techniques and developments in Software Defined Radios and shows how they may be adapted to the Underwater Acoustic Communication domain.
机译：近年来，有很大的努力将用于在水下声场中的类似性能收益中转化为实现RF界的性能收益的技术。最初，专注于远离单侧带信号的发展朝向直接序列扩频，导致对衰落，噪声和混响的耐受性改善。最近，增加数据速率的尝试利用了复杂的技术，例如MIMO，导致可用数据速率的步骤改进。然而，现在提供了一种夸大的水下通信方法，其中大部分是基于专有协议，这导致了互操作性问题。 RF域中也存在此问题，并通过开发软件和认知无线电方法来解决。本文介绍了软件定义了无线电中的最新技术和开发，并显示了它们如何适应水下声学通信域。

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