基于大规模天线系统的多通道校准算法研究

Research on multi-channel calibration algorithm based on large-scale antenna system

文章首先详细地给出大规模天线系统技术优势,并详细给出宽带信号多通道校准基本原理和步骤;然后提出一种新的应用于大规模天线系统的多通道算法,算法实现性能能够将多路待校准通道准确按照参考通道进行校准拟合,并满足系统对多通道幅相一致性的指标要求。实测数据分析表明:多通道校准校准结果可以满足时延、幅度和相位指标要求,保证大规模天线系统的波束赋形和空分复用性能最优。

This paper gives a detailed technical advantages of large-scale antenna system, and gives a multi-channel wideband signal calibration principle and process details;then proposed a new algorithm is applied to a large-scale multi-channel antenna system capable of multiple algorithm performance The channel to be calibrated is accurately calibrated and fitted according to the reference channel, and meets the system’s index requirements for multi-channel amplitude and phase consistency. The analysis of the measured data shows that the multi-channel calibration results can meet the requirements of delay,amplitude and phase indicators, ensuring the best beamforming and space division multiplexing performance of large-scale antenna systems.