摘要
介绍了ARM(advanced RISC machines,英国电子公司)和FPGA(可编程逻辑阵列)在水声浮标(文中简称新型浮标)数据采集存储中的应用。利用FPGA丰富的硬件资源实现新型浮标系统多通道同步采样,并在ARM模块中移植Windows FAT32文件系统,嵌入USB底层驱动,实现采集数据的高速存储。描述了系统设计与实现,并对该数据采集存储系统进行了通道隔离度、动态范围、系统自噪声和功耗等指标测试。实验结果表明,该系统通道隔离度>90d B(参考1V);动态范围≥110d B(参考1V);系统自噪声≤40d B(参考1 n V);系统总功耗为4.2 W。
This article introduces the application of ARM and FPGA in buoy data acquisition and storage. The authors use the FPGA hardw are resources to achieve the multi-channel simultaneous sampling,transplant Window s FAT32 file system in ARM module,and embed USB underlying driver to achieve high-speed data storage. This paper describes the system design and implementation. The channel isolation,dynamic range and system noise,along with power consumption are tested. Experimental results show that the system channel isolation 90 d B（ reference 1V）; dynamic range ≥110d B（ reference 1V）; system noise ≤40d B（ reference1 n V）; Power consumption is 4. 2W.
出处
《海洋测绘》
CSCD
2015年第1期79-82,共4页
Hydrographic Surveying and Charting
基金
国家海洋公益性行业科研专项(201005004)
