HF Communications: Past, Present, and Future

作     者：Jinlong Wang Guoru Ding Haichao Wang 

作者机构：College of Communications Engineering Army Engineering University of PLA National Mobile Communications Research Laboratory Southeast University 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2018年第15卷第9期

页      面：1-9页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0839[工学-网络空间安全] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 61501510) Natural Science Foundation for Distinguished Young Scholars of Jiangsu Province (Grant No. BK20160034) Natural Science Foundation of Jiangsu Province (Grant No. BK20150717) China Postdoctoral Science Funded Project (Grant No. 2018T110426) 

主　　题：无线通讯 HF 技术进化 通讯系统 频率范围 应用程序 紧急情况 高频率 

摘      要：High frequency(HF) communication, commonly covering frequency range between 3 and 30 MHz, is an important wireless communication paradigm to offer over-thehorizon or even global communications with ranges up to thousands of kilometers via skywave propagation with ionospheric refraction. It has widespread applications in fields such as emergency communications in disaster areas, remote communications with aircrafts or ships and non-light-of-the-sight military operations. This tutorial article overviews the history of HF communication, demystifies the recent advances, and provides a preview of the next few years, which the authors believe will see fruitful outputs towards wideband, intelligent and integrated HF communications. Specifically, we first present brief preliminaries on the unique features of HF communications to facilitate general readers in the communication community. Then, we provide a historical review to show the technical evolution on the three generations of HF communication systems. Further, we highlight the key challenges and research directions. We hope that this article will stimulate more interests in addressing the technical challenges on the research and development of future HF radio communication systems.