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随着微计算机和信号处理技术的发展,水声物理实验技术面临着一场革新,而实验现场的数据采集和预处理又是首当其冲的任务。为此我们研制了用微计算机控制的多通道数据采集系统,并在两次较大规模的海上实验中作了现场的数据采集,收到了良好的效果。该系统的研制大致分为三个阶段,首先解决了多通道数据采集的连续记录问题,其次解决了多通道扩展和某些预处理问题,第三解决了不用缓冲存贮的多通道高速数据采集问题。该系统分别用两种微计算机TRS-80和PS-80控制,TRS-80系统主要解决声信号的
With the development of microcomputer and signal processing technology, underwater acoustic physics experimental technology is facing an innovation, and the experimental site data acquisition and preprocessing are the most important tasks. To this end, we developed a multi-channel data acquisition system controlled by a microcomputer and made field data collection in two large-scale offshore experiments and received good results. The development of this system can be roughly divided into three stages, first of all to solve the problem of continuous recording of multi-channel data acquisition, secondly to solve the problem of multi-channel expansion and some preprocessing, and thirdly to solve the multi-channel high-speed data acquisition without buffer storage problem. The system is controlled by two microcomputers TRS-80 and PS-80 respectively. The TRS-80 system mainly solves the problem of acoustic signal