基于DRM信号的短波探通一体化技术  

Integration technology of HF communication and channel detection based on DRM signal

作　　者：苏重阳 李雪[1] 蔚娜[1] 

机构地区：[1]中国电波传播研究所,青岛266107

出　　处：《电波科学学报》2017年第6期681-686,共6页Chinese Journal of Radio Science

摘　　要：短波通信一直以来都是无线远程通信的一种重要方式,文中旨在利用一种既具有短波通信功能,又具有信道探测功能的一体化信号,实现在进行短波通信的同时,实时探测信道特性,并利用探测结果修正自身信号,降低通信误比特率.文中选用数字调幅广播(Digital Radio Mondiale,DRM)信号作为一体化信号,在分析了该信号的探测性能后,研究了利用探测得到的短波信道特性参数(时延、多普勒频移、相对衰减等),构造反卷积滤波器,实现校正一体化信号并提出可提高其通信性能的算法.最后,通过仿真分析得出,所提算法相较于传统短波通信的方法,既提高了频带利用率,又降低了通信误比特率(Bit Error Rate,BER),具有良好的性能.HF communication is always considered as an important way of wireless remote communica- tion. The purpose of this paper is to reduce the bit error rate （BER） by using an integrated signal with communication and detection function to detect HF channel characteristics in real time and use the detec- tion results to correct the signal itself while HF communication is carried out simultaneously. The digital radio mondiale （DRM） signal is chosen as the integrated signal. After analyzing the detection performance of the signal, an algorithm for detection of integrated signals is constructed to achieve the correction of in- tegrated signal and improve its communication performance by constructing deconvolution filters using the channel characteristic（time delay, Doppler frequency shift, relative attenuation） parameters detected. Fi- nally, the simulation results show that compared with the traditional HF communication method, the pro- posed algorithm not only improves the bandwidth utilization, but also reduces the communication bit error rate, and has a good performance.

关 键 词：短波通信 信道探测 探通一体 DRM 信道特性参数 反卷积 

分 类 号：TN014[电子电信—物理电子学]