基于GNU-Radio+USRP的MCSS通信设计与实现  

Design and Implementation of Multicode Combined Spread Spectrum Communication Based on GNU-Radio+USRP

作　　者：陈盈 窦高奇[1] 王青波[1] 邓冉[1] CHEN Ying;DU Gao-qi;WANG Qing-bo;DENG Ran(Institute of Electronic Engineering,Naval University of Engineering,Wuhan Hubei 430033,China)

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《计算机仿真》2021年第5期158-162,共5页Computer Simulation

基　　金：抗干扰国防重点实验室基金(.61421020405);海军工程大学科研发展基金(.425317Q024)。

摘　　要：多码组合扩频是一种载荷更高、带宽占用率更低、保密性更好的新型扩频模式,但由于实际应用依赖复杂的硬件电路,极大限制了通信模式的灵活性。基于GNU-Radio+USRP构建多码组合扩频通信硬件平台,完成多码组合扩频通信算法设计和收发仿真测试,系统可根据实际需求调整扩频码周期、星座图映射方式、收发速率和载波频率等通信参数,并对接收载波和定时同步进行算法设计,实现系统连续和猝发通信需求,通过实时在线测试,验证了系统设计的灵活性和方案设计的有效性。Multi-code combined spread spectrum is a new type of spread spectrum mode with higher load,lower bandwidth occupancy and better confidentiality.However,the practical application relies on complex hardware circuits,which greatly limits the flexibility of the communication mode.This paper built a multi-code combined spread spectrum communication hardware platform based on GNU-Radio+USRP,and completed multi-code combined spread spectrum communication algorithm design and transceiver simulation test.The system can adjust the communication parameters such as spreading code period,constellation mapping mode,transmission and reception rate,and carrier frequency,according to actual needs.And algorithm design of receiving carrier and timing synchronization was carried out to realize system continuous and burst communication requirements.The flexibility of system design and the effectiveness of scheme design were verified through real-time online tests.

关 键 词：多码组合扩频 软件定义无线电 同步算法联合设计 

分 类 号：TN919.6[电子电信—通信与信息系统]