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面向星载综合射频系统的软件定义平台设计 被引量:1
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作者 何烨贞 李健 彭宏 《通信技术》 2023年第9期1071-1075,共5页
星载综合射频系统安装在卫星或太空载具上,负责通信链路建立、数据传输、信号采集和处理等。随着卫星通信需求不断增强,该系统正持续发展演进。然而,传统的紧密耦合软硬件计算模式已不再适用。基于此,设计了一种星载综合射频系统软件定... 星载综合射频系统安装在卫星或太空载具上,负责通信链路建立、数据传输、信号采集和处理等。随着卫星通信需求不断增强,该系统正持续发展演进。然而,传统的紧密耦合软硬件计算模式已不再适用。基于此,设计了一种星载综合射频系统软件定义平台,其旨在实现波形应用与底层平台的解耦。考虑到星载系统的特殊环境和资源限制,此设计致力于应对苛刻资源环境带来的轻量通信、动态任务重构及潜在的单粒子翻转问题。借助软件定义的手段,将计算任务与具体硬件解耦,同时实现任务模式的动态重构,可以更好地应对持续增长的计算需求。 展开更多
关键词 软件定义平台 嵌入式 分布式系统 星载系统
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A Software Defined Open Wi-Fi Platform
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作者 Kai Kang Zhenghang Zhu +2 位作者 Dehua Liu Wuxiong Zhang Hua Qian 《China Communications》 SCIE CSCD 2017年第7期137-151,共15页
Wireless local area network(WLAN) is an indivisible part of the next generation wireless system. In this paper, an open Wi-Fi platform is designed and developed with special consideration of real-time signal processin... Wireless local area network(WLAN) is an indivisible part of the next generation wireless system. In this paper, an open Wi-Fi platform is designed and developed with special consideration of real-time signal processing. Such system can help accelerate research and development of future wireless network, especially in the case of cellular/Wi-Fi co-existing networks. This platform is based on the Intel general-purpose processor and the universal software radio peripheral(USRP) radio front end. The design including the physical layer implementations is purely software and is optimized for real-time signal processing on the general purpose processor. In the lab experiment, this platform supports baseband rate up to 700 Mbps with 2 transmitters in 80 MHz bandwidth. A cellular-Wi-Fi signaling interface between the Wi-Fi access point(AP) and the 5G core network is also developed and validated as an example for wireless resource allocation. 展开更多
关键词 WI-FI IEEE 802.11 5G network convergence software defined radio (SDR)
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