短波宽带数字化通信技术发展分析  

Development and Analysis of Short-wave Broadband Digitized Communication Technology

作　　者：吴少欢 邹晶晶[2] 文军[2] WU Shao-huan;ZOU Jing-jing;WEN Jun(Unit 91919 of PLA,Huanggang Hubei 438000,China;No.30 Institute of CETC,Chengdu Sichuan 610041,China)

机构地区：[1]中国人民解放军91919部队 [2]中国电子科技集团公司第三十研究所

出　　处：《通信技术》2018年第9期2059-2063,共5页Communications Technology

摘　　要：对不同电路结构的短波通信接收机进行比较,介绍了宽带接收机的特点,并在数字中频接收机的方案基础上,提出了宽带接收机的实现方式。在ADC高速采样的基础上进行宽带信号的数字化,通过窄带数字滤波可实现多通道接收,而通过分析宽带信号的频谱信息可以进行频谱感知。因此,介绍了多通道接收及频谱感知的技术途径,阐述了基于宽带数字化的软件无线电构架,并在宽带数字化的技术背景下,对短波通信硬件处理和通信体制的发展趋势做出展望。Comparison is done on communication receivers with different circuit configurations.And meanwhile,the characteristics of the wideband receiver are described,and based on the digital IF receiver scheme,the implementation of the wideband receiver proposed.Based on ADC high-speed sampling,the digitization of the wideband signal is performed.Multi-channel reception is achieved by narrowband digital filtering.Spectrum sensing is implemented by analyzing the spectral information of the wideband signal.The technical approaches to multi-channel reception and spectrum sensing are introduced,and the software radio architecture based on broadband digitization also expounded.Under the background of broadband digital technology,the development trend of short-wave communication hardware processing and communication system is forecasted.

关 键 词：短波 宽带接收 数字化 通信体制 

分 类 号：TN91[电子电信—通信与信息系统]