天地一体化信息网络中信令技术的研究  

A Research on Signaling Technique in the Global-integrated Network

作　　者：姚艳军[1] 王烁[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088

出　　处：《无线电工程》2016年第7期1-4,共4页Radio Engineering

摘　　要：为了解决天地一体化信息网络中信令相关技术难点以及信令信道的建设,提出了在天基骨干节点搭载S频段相控阵载荷的解决方法。对几个关键技术进行了重点分析:在物理层,提出了基于开环的信令数据时频快速同步技术、基于非相干的分组数据解调技术;在链路层,采用扩频ALOHA方式解决广域用户随机接入问题。仿真结果表明,基于多符号联合检测的分组数据解调技术比理想相干解调仅损失0.5dB,扩频ALOHA多址随着扩频增益增大,容量也相应增加。This paper aims to address the key technologies and construction of signaling channel in the Global-integrated Network. The paper proposes the way of developing signaling channel,based on the deployment of S-band phased array payload on the backbone nodes.Then, some key technologies are analyzed.Specifically,in physical layer, the paper proposes a way of fast synchronization based on the open loop method.Then, the demodulation of short message based on non-coherent way is also proposed.In the link layer, the method of spreading spectrum combined with ALOHA is used to solve the problem of random access where the users are scattered all around the word.Simulation results show that the solutions to the key technologies meet the actual requirements.Therefore, the paper can give a good direction in the construction of Global-integrated Network.

关 键 词：天地一体化信息网络 信令信道 骨干网 S频段 相控阵载荷 

分 类 号：TN391.4[电子电信—物理电子学]