摘要
本文主要研究了多跳高频(High Frequency, HF)无线电传播问题。首先利用无线电传播的相关理论,得到HF无线电波在传播过程中传输损耗,建立相关的数学模型,得到HF无线电波传输的损耗公式。然后建立静海面多跳反射(MOC)模型,得到在海面上损耗的公式。最后通过BP神经网络模拟数据,利用模拟退火算法对模型进行了优化,得到最优模型。本文提出的方法解决了多跳HF无线电波在不同环境下的传播问题,以及在海洋上接收无线电波的设计及优化,可以得到HF无线电波在海上传播的最佳频率。
The paper mainly studies multi-hop high frequency(HF) radio transmission. Firstly, based on radio transmission theory, we can achieve transmission loss of HF radio wave in transmission process, establish related mathematical model, and obtain loss formula of HF radio wave transmission. Then, we can establish multi-hop reflection(MOC) model on calm sea surface, and achieve loss formula on sea surface. Finally, we can optimize model with simulated annealing algorithm based on BP neural network simulation data, and obtain optimal model. The method proposed in the paper solves transmission problem of multi-hop HF radio wave propagation in different environments, as well as design and optimization of receiving radio wave on sea surface, which can obtain optimal frequency of sea transmission of HF radio wave.
引文
[1]冯雪元.无线信号传播衰弱浅析[J].科技视界,2014(36):90-91.FENG Xue-yuan.Fading Analysis of Wireless Signal Transmission[J].Sci-tech Horizon,2014(36):90-91.
[2]常瑞廷,王智豪,陈沁宇.海洋表面无线电传播的多跳模型[J].科技创新与应用,2018,235(15):64-65.CHANG Rui-ting,WANG Zhi-hao,CHEN Qin-yu.Multi-hop Model of Sea surface Radio Transmission[J].Innovation and Application of Science and Technology,2018,235(15):64-65.
[3]EDWARDS J K.HF signal fading may not always be Rayleigh:both fading and transmission loss are greatly influenced by practical transmitting and receiving antennas[C]//International Conference on Hf Radio Systems&Techniques.IET,2002.
[4]董航,徐池,易涛,等.基于信噪比估算的短波通信辅助决策模型研究[J].通信技术,2014(11):1313-1317.DONG Hang,XU Chi,YI Tao,et al.Research on Shortwave Communication Decision Assistant Model Based on Signal-to-Noise Ratio Estimation[J].Communication Technology,2014(11):1313-1317.
[5]卢中昊,尹家贤.电磁波反射折射能量守恒定律推导及应用[J].电气电子教学学报,2016,38(2):56-59.LU Zhong-hao,YIN Jia-xian.Derivation and Application of Energy Conservation Law of Electromagnetic Wave Reflection and Refraction[J].Journal of Electrical and Electronic Teaching,2016,38(2):56-59.
[6]韩丽,张学庆.基于模拟退火的卫星地面站任务规划方法[J].无线电工程,2010,40(9):42-43.HAN Li,ZHANG Xue-qing.Mission Planning Method of Satellite Ground Station Based on Simulated Annealing[J].Radio Engineering,2010,40(9):42-43.
[7]尹新,周野,何怡刚.基于混合算法优化神经网络的混沌时间序列预测[J].湖南大学学报(自然科学版),2010,37(6):41-45.YIN Xin,ZHOU Ye,HE Yi-gang.Chaotic Time Series Prediction Based on Hybrid Algorithm Optimization Neural Network[J].Journal of Hunan University(Natural Science Edition),2010,37(6):41-45.
[8]王路,熊胜,徐建超,等.无线电能传输系统单相高频逆变器设计[J].船电技术,2019,39(2):10-13.WANG Lu,XIONG Sheng,XU Jian-chao,et al.Design of single-phase high frequency inverters for radio power transmission systems[J].Marine Electrical Technology,2019,39(2):10-13.
[9]王亚.海洋表面的高频无线电传输[J].科技经济市场,2018(9):26-28.WANG Ya.High Frequency Radio Transmission on Ocean Surface[J].Science and Technology Economic Market,2018(9):26-28.
[10]梁捷,李刚.基于移峰互动试验的分时电价优化模型研究[J].新型工业化,2017,7(9):1-6.LIANG Jie,LI Gang.Time-of-use tariff optimization model based on peak shift interaction test[J].The Journal of New industrialization,2017,7(9):1-6.