超宽带通信中的穿墙信号衰减补偿方法  

Ultra Wideband Communications through Walls of Signal Attenuation Compensation Method

作　　者：胡煜[1] 王俊义[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《计算机仿真》2014年第5期201-204,共4页Computer Simulation

基　　金：2012年国家自然科学基金(61261017)

摘　　要：研究超宽带通信中穿墙信号正确衰减补偿,提高信号传输的准确性。由于超宽带通信中采用的是无线频段,这些频段都属于微波,而微波的特点是频率高、波长短、直线传播,在传后播方向上它绕不开障碍物,导致冲击脉冲信号在穿透墙体等障碍物时发生衰减。传统的通信方法在信号衰减的情况下无法进行高精度的匹配,造成通信效果变差。为了避免上述缺陷,提出了一种基于偏振模色散补偿算法的超宽带通信中穿墙信号衰减补偿方法。对穿墙信号衰减程度进行估计,计算穿墙信号衰减补偿系数,从而为穿墙信号衰减补偿提供依据。利用偏振模色散补偿方法,对穿墙信号衰减进行有效的补偿,从而完成超宽带通信。实验结果表明,应用改进算法进行超宽带通信的穿墙信号衰减补偿,能够提高超宽带通信过程中信号传输的准确性。The compensation for through-wall signal correctly attenuation in UWB communications was studied in this paper in order to increase the accuracy of signal transmission. This paper presented a compensation method for through-wall signal attenuation in ultra-wideband communications based on polarization mode dispersion algorithm. Firstly, the degree of through-walls signal attenuation was estimated and the compensation coefficient of through-wall signal attenuation was calculated, so as to provide a basis for signal attenuation compensation. Then, the polarization mode dispersion method was used to effectively compensate the through-walls signal attenuation to eventually com- plete the ultra-wideband communications. Experimental results show that the improved algorithm applied in compen- sation for through-wall signal attenuation in UWB communication can improve the accuracy of the UWB signal transmission.

关 键 词：超宽带通信 穿墙信号 衰减补偿 偏振模色散 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]