Design Digital System Of Acoustic Release Response System And Application In Synchronous Positioning System

At present, the main means of the marine scientific research is acoustic technology, and with the development of acoustic technology, various types of acoustic equipment are constantly updated. Acoustic release transponder system as essential acoustic equipment in the marine monitoring and marine engineering, foreign companies have already had series products, but domestic research in this area is very limited. In this context, this paper presents an acoustic release system of the digital platform designs with functions of releasing, positioning.This paper designs the digital hardware platforms of acoustic release system and gives software implementation programs. Based on the DSP6416 and FPGA, the digital platform of deck unit with RS232, USB and Ethernet interfaces, has strong real-time digital processing capability and is easy to expanse functions. Based on the DSP5509, the digital platform of acoustic release transponder has the characteristic of low power consumption. This paper discusses the importance of signal integrity; gives the PCB design flow based on the signal integrity. According to the system functional requirements, this paper gives the system the signal waveform design and detection program.Because of the requirement of a synchronous positioning system, the digital platform is used in this system, part of the deck unit used as a data collector and part of acoustic release transponder used as a synchronization beacon. This paper selects the synchronous oscillator used in the system through experiment, designs the system application software, and validates system performance through experiment.