摘要
针对高速率信号的接收问题,提出一种基于集群计算的通信接收系统,介绍该系统的软硬件架构及采用的若干关键技术,包括高速A/D转换和并行网络数据分发、高效负载均衡调度算法、千兆以太网匀速输出155 Mb/s数据及支持节点异构和非同类信号并行处理等。实际测试表明,系统采样率达100 MSPS,网络数据分发速率达200 Mb/s,处理信号带宽达40 MHz,能完成多种高速通信信号的实时接收。
Aiming at receiving problem of high-rate signals,this paper proposes a communication receiver system based on cluster computing,the hardware and software architecture,the key technologies of the system are introduced,including high-speed A/D conversion,parallel data dispatching,efficient load-balance algorithm,gigabit Ethernet even output 155 Mb/s,and supporting for heterogeneous nodes and parallel processing of different kinds of signals.Practical tests show that the receiver can work at a sample rate up to 100 MSPS,a network dispatching rate up to 200 Mb/s and a signal bandwidth up to 40 MHz and can receive various high-rate communication signals in real-time.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第9期240-242,共3页
Computer Engineering
