基于HHT的海上微波通信信号识别方法  

Identification Method of Marine Microwave Communication Signal Based on HHT

作　　者：米映霖 MI Yinglin(CNOOC Energy Development Co.,Ltd.,Tianjin Binhai 300452)

机构地区：[1]中海油能源发展股份有限公司,天津滨海300452

出　　处：《长江信息通信》2024年第11期133-134,166,共3页Changjiang Information & Communications

摘　　要：针对当前海上微波通信信号识别存在信号分辨率SNR值过低,影响识别准确性的问题,引入HHT,开展海上微波通信信号识别方法的设计研究。计算海上微波通信信号衰落,并根据计算结果确定信号衰落分布。利用HHT变换,将信号分解成一系列固有模式函数(IMF),并通过输出的希尔伯特边际谱,实现信号分类识别。通过对比实验证明,该方法应用后信号分辨率SNR值显著提升,有效促进了识别准确性的提高。In response to the problem of low signal resolution SNR value in current marine microwave communication signal recognition,which affects recognition accuracy,HHT is introduced to carry out design research on marine microwave communication signal recognition methods.Calculate the attenuation of microwave communication signals at sea and determine the distribution of signal attenuation based on the calculation results.Using HHT transformation,the signal is decomposed into a series of intrinsic mode functions(IMFs),and signal classification and recognition are achieved through the output Hilbert marginal spectrum.Through comparative experiments,it has been proven that the application of this method significantly improves the SNR value of signal resolution,effectively promoting the improvement of recognition accuracy.

关 键 词：HHT 海上微波通信 信号识别 固有模式函数 

分 类 号：TM761[电气工程—电力系统及自动化]