宽带嵌入式存储系统中实时数据记录的优化方法

摘要

Focusing on the demand of long-term continuous wideband signal acquisition , this paper puts forward an implementation and optimized method of embedded large-capacity and high-bandwidth data storage system architecture based on FPGA and multi-channel SSDs. In this paper, the random instantaneous speed problem of SSD writing is analyzed emphatically , and a dynamic scheduling method is put forward based on the test data and mathematical model. Theoretical analysis and practical tests both indicate that this method reduces the need of data buffer effectively and improves the reliability of the system.%针对宽带信号长时间连续采集的需求,提出了一种基于FPGA和多路标准固态硬盘(SSD)的嵌入式大容量大带宽数据存储系统架构及其优化实现方法.着重分析了标准SSD瞬时写入速率随机性问题,基于实测数据和数学模型提出了一种动态数据调度方法.理论推导和实际测试均表明该方法有效降低了对缓存容量的需求,并提高了系统工作的可靠性.