摘要
采用了一种基于信号幅度测量的新校准方法,通过计算各个指定状态下信号的相对电平,得到多路信号相位差。介绍了校准原理,在FPGADSP硬件平台上进行了仿真和算法验证,并给出了实际测量结果。分析和仿真表明了采用这种新校准方法的可行性。实测结果表明,该方法测量速度较快、设备量小、与仪器校准差别很小,尤其适用于对多通道不一致性系统进行补偿标校。
Based on amplitude measurement of the signal, a new phase calibration method is proposed in this paper. The phase difference of multi-channel signal can be found through the calculation of relative signal level in several specified states. The calibration theory is introduced; simulation and verification are conducted on the FPGA _ DSP platform; and the measured results are given. The simulation results show that the this new calibration method is feasible, the measured results show that this method has the virtue of high speed, less equipment and has little difference with the result of calibration by instrument, and is especially suitable for calibration and compensation of system with inconsistent muhi-channels.
出处
《无线电工程》
2010年第9期62-64,共3页
Radio Engineering
