摘要
针对导航通信一体化系统面临的在有限带宽内实现高速率信号传输和高精度测量的难题,结合正交频分调制与恒包络调制思想,提出了多载波二进制偏移载波(multi-carrier binary offset carrier,MC-BOC)调制,其能够有效利用频谱资源,提升信号的接收性能,并具备恒包络特性.分析北斗无线电测向卫星业务(radio determination satellite service,RDSS)采用该调制后的性能,结果表明:该调制方式具备优良的通信性能、抗干扰能力、测距性能以及抗多径能力.本文提出的MC-BOC调制技术为导航通信一体化系统信号体制设计和优化提供了一种可行的参考方案,可以用于北斗RDSS和站间时间同步/数据传输网络的信号设计.
How to realize high speed data transmission and high precision measurement in a limited frequency band is a problem confronted by navigation&communication integrated systems.In this paper,a new modulation,named multi-carrier binary offset carrier(MC-BOC)modulation,is presented by combining the orthogonally frequency division modulation and constant envelope modulation.The modulation can improve the spectral efficiency and the receiving performance,and also have the characteristics of constant envelope.Performance of radio determination satellite service(RDSS)signal adopting the proposed modulation is analyzed,and the results show that MC-BOC modulation has good data demodulation,ranging,anti-jamming,and anti-multipath performances.The new modulation provides a solution to signal design and optimization for navigation&communication systems.
作者
黄新明
欧钢
HUANG Xinming;OU Gang(College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China)
出处
《电波科学学报》
EI
CSCD
北大核心
2020年第5期762-768,共7页
Chinese Journal of Radio Science
基金
北斗卫星导航重大专项。
关键词
MC-BOC调制
频谱正交
导航
通信
恒包络
MC-BOC modulation
orthogonal spectrum
navigation
communication
constant envelope
