直扩OQPSK传输体制关键技术分析及应用  

Analysis and Application of Key Technologies of DS-OQPSK Transmission System

作　　者：崔霞霞[1] 王少飞 CUI Xiaxia;WANG Shaofei(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2020年第15期58-61,共4页Computer & Network

摘　　要：直扩OQPSK是直接序列扩频和OQPSK调制方式相结合的传输模式,兼顾扩频的抗干扰和抗截获特点,以及OQPSK的包络恒定、频谱效率和功率效率高的优势,可广泛应用于军事通信中。结合工程实践,介绍了直扩OQPSK的调制原理,重点分析了直扩OQPSK的关键技术,主要包括扩频码跟踪和载波跟踪,经理论推导和工程实现证明直扩OQPSK实现复杂度低、可移植性强,且性能优良。DS-OQPSK is a transmission mode that combines direct sequence spread spectrum and offset quadrature phase shift keying modulation, which takes into account the anti-jamming and anti-interception of the direct sequence spread spectrum and the OQPSK advantages of the envelope constant, spectrum efficiency and power efficiency. So it can be widely used in military communication. Combining with engineering practice, the DS-OQPSK modulation principle is introduced, and the key technologies of DS-OQPSK is analyzed, mainly including the code tracking and carrier tracking. The theoretical derivation and engineering realization proves that DS-OQPSK has low complexity, strong portability and good performance.

关 键 词：直扩OQPSK 扩频码跟踪 载波跟踪 

分 类 号：TN763.3[电子电信—电路与系统]