Adapting the USRP as an Underwater Acoustic Modem

Our work is the first time that the USRP/GNU Radio is applied to an UWA channel and represents an exciting branch into a field that has a need for cost-effective and configurable modems. The USRP facilitates such needs through its low cost, ability to be used to rapidly prototype, and synergistic open platform. We outline how to set up a USRP for receiving acoustic signals and passing the received information to a host PC so that the reception and processing are done in a mix of hardware and software.