Design Of Underwater Acoustic Signal Receiving And Processing Platform Based On OMAP-L137

As soon as we come to the21st century, ocean technology develops more and morequickly with the development of marine resources and construction of the coast defenses.Acoustic positioning systems are widely used in military and civilian fields, which is animportant part of ocean technology. Acoustic transceiver is an important part of the longbaseline acoustic locating system. In this paper, underwater acoustic signal receiving andprocessing platform which is based on the long baseline acoustic locating system wasdesigned to send and receive acoustic signals. It has water mode and underwater mode.In this paper, underwater acoustic signal receiving and processing platform aimed atunderwater acoustic signals, which is based on the OMAP-L137platform was designed andaccomplished. OMAP-L137is an open multimedia application platform, which integratesC674x DSP core and ARM9core, which was launched by TI, with high-speed signalprocessing capabilities and good controllability. This paper uses FPGA for each chip interfacelogic management in the analysis of system requirements. To achieve the OMAP-L137+FPGA design methodology.Based on system design requirements, the whole hardware system was divided intoseven parts: data acquisition module, data transmission module, data processing module,system logic control module, memory module, network communication module and powermodule. This paper introduced module selection, circuit principle diagram design, PCBdesign and system hardware debugging. On the software, this paper has completed the FPGApart program designing and debugging, and realized McASP interface programming anddebugging. Finally, this paper has tested the underwater acoustic signal receiving andprocessing platform, and gave test results.