Collection System Design Of Small Scale Vector Sensor Array

Vector sensor array is a hotspot technique in the field of underwater acoustic torpedo and underwater torpedo. This dissertation aims at the design of collection system of small scale vector sensor array. This system is a data collection device correspond with vector sensor array, its main function is to get the noise under 1 KHz of ships and submarines, and to collect, storage, analysis these information, through the calculate of signal frequency spectrum, we can detect and estimate the target, its main task is the information acquisition and storage. In order to verify vector algorithm using the data collected, we need a collection system of vector sensor array to gather pure underwater acoustic data.In terms of the system's task and requirement, an experimental resolving project is put forward, which includes a buoy system and a station system. The experimental equipment has 16 gathering data channels and can sample the signals from four vector sensors simultaneously, and the data can stored in hard disk of a buoy system and a station system simultaneously.The equipment is powered by battery, adopt low-power, low-noise, wide band and wide dynamic range designs. What's more, the system can change work parameters through down-transfers command .the data transmit with multimode fiber. Digital Signal Processor (DSP) and Field Program Gate Array (FPGA) is the core of the control part, which made the hardware stabilization, decreased the power consumption and enhanced the system reliability. And all of these make it possible of the function expand in future.