摘要
毫米波频段因其具有丰富频谱资源而成为5G移动通信领域的一个研究方向。然而,在毫米波频段下,数模转换以及模拟信号的放大引入的线性和非线性增益将严重影响带内平坦度的指标,进而影响后续的信号分析和处理。针对这一问题,提出了一种基于频率采样法的补偿滤波器设计方法,通过训练模式发射多音信号来获取频率响应参数,并利用该系数设计补偿滤波器。补偿模式在基带对信号进行幅度补偿。仿真和实测数据表明,进行平坦度补偿以后,在不影响解调结果的情况下,平坦度指标具有0.8 dB的增益。
The millimeter wave frequency band becomes a research direction in 5G mobile communication due to its rich spectrum resources.However,in the millimeter-wave frequency band,the linear and nonlinear gains introduced by digital-to-analog conversion and analog signal amplification will seriously affect the in-band flatness index,which in turn affects subsequent signal analysis and processing.To address this problem,this paper proposes a compensation filter design algorithm based on frequency sampling,which transmits multi-tone signals in training mode to obtain frequency response parameters,and uses the coefficients to design compensation filters.Compensation mode conducts amplitude compensation on the signal at baseband.Simulation and measured data indicate that after flatness compensation,the flatness has a gain of 0.8 dB without affecting the demodulation results.
作者
江丹
JIANG Dan(Ceyear Technology(Anhui)Co.,Ltd.,Bengbu Anhui 233050,China;Electronic Measuring Instrument Technology Bengbu Technology Innovation Center,Bengbu Anhui 233050,China)
出处
《通信技术》
2022年第6期695-700,共6页
Communications Technology
基金
电子测量仪器技术蚌埠市技术创新中心项目。
关键词
毫米波
平坦度
频率采样法
补偿滤波器
millimeter-wave
flatness
frequency sampling
compensation filter
