摘要
设计开发了一种超低功耗海洋环境噪声监测系统。它能对水听器采集的噪声信号进行自动增益放大、数字滤波和A/D转换,并对原始采集数据用Flash进行大容量存储及回放。系统在屏蔽室和水槽进行了实验,工作稳定,数据采集完整,数据回放处理结果反映了实际情况。
A type of ultra low power consumption monitoring system is developed for marine ambient noise. Noise signal acquired by hydrophone can automatically achieve gain amplification, digital filtering and A/D conversion. The raw data acquired have been stored by high capacity storage flash in real time. This system has been tested in the shield room and pool, working stably for several days. The data has been sampled successfully. The actual situation has been reflected almost by data playback results.
出处
《海洋技术》
北大核心
2009年第1期41-45,共5页
Ocean Technology
基金
国家高技术研究发展计划(863计划)资助项目(2006AA09Z301)
关键词
低功耗
海洋环境噪声
自动增益放大
数字滤波
大容量存储
low-power
marine ambient noise
automatic gain amplification
digital filter
high capacity storage
