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。
关键词:
软件无线电,
集群计算,
负载均衡,
千兆以太网
Abstract: 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.
Key words:
software radios,
cluster computing,
load balance,
gigabit Ethernet
中图分类号:
卢光军;张 莉;陆佩忠. 基于集群计算的通信接收系统关键技术[J]. 计算机工程, 2010, 36(9): 240-242.
LU Guang-jun; ZHANG Li; LU Pei-zhong. Key Technologies of Communication Receiver System Based on Cluster Computing[J]. Computer Engineering, 2010, 36(9): 240-242.