The Design Of Acquisition Storage And Processing Platform Based On Subsurface Buoy System Of Very Low Frequency Vector Sensor

Nowadays,the potential standard system for acoustic information collection of marine environment has been widely developed and applied.The acquisition and transmission platform is an important part of the standard system,and its performance has an important influence on the whole system.In this paper,the potential standard system as a research background,the purpose is to design a stable performance of data acquisition and transmission and processing platform.According to the requirement of the standard system,the hardware circuit design and software program design of the data acquisition and transmission platform are carried out.The hardware circuit is designed with the low noise type operational amplifier CS3002 as the center.The sound vector signal amplification circuit and the filter processing circuit are designed.In order to improve the detection performance,the low noise of the circuit is designed.Secondly,the circuit to DSP as a central processing unit,completed the DSP minimum system circuit,data acquisition circuit,data transmission circuit,data storage circuit,data read circuit,data upload circuit and power supply circuit,in order to achieve a number of potential standard system synchronization Data acquisition,increased synchronization circuit.The software program is part of the CCS development environment,the use of C language to complete the hardware circuit configuration,and the preparation of ADC data acquisition,CF card data storage,serial upload and USB data read and other programs.The final processing of the data is implemented on the MATLAB software.Finally,the parts of the whole acquisition and transmission platform are tested.The paper collects the vector signals in the laboratory environment and the sea test,and compares the collected data with the test signals.The experimental data show that the processing platform has reached the design requirements,and realized the acquisition,storage and processing functions of vector information.