一种基于三次样条插值法的时基误差校正方法  

Method of time base error correction based on cubic spline interpolation

作　　者：赵洋[1] 高立[2] 何羚[1] 何丕雁[1] 

机构地区：[1]电子科技大学,成都611731 [2]中国电子技术标准化研究院,北京100007

出　　处：《国外电子测量技术》2017年第8期30-33,37,共5页Foreign Electronic Measurement Technology

摘　　要：在基于多通道的高速并行采样系统中,误差估计和误差校正(等效于信号重建)是最重要的环节。提出了采用采样时间、采样波形构成的三次样条插值函数来重建多通道非均匀采样信号,利用了多通道的时基误差的周期性计算函数系数,简化了运算、降低了计算复杂度,并且该方法适用于任意通道数的采样。仿真结果表明,该方法可以对多通道高速并行采样信号进行有效地重建,校正效果良好。In multi-channel high-speed parallel sampling systems,error estimation and error correction （equivalent to signal reconstruction） are the most important aspects.The paper proposes a cubic spline interpolation method with sampling time and sampling waveform to reconstruct the multi-channel non-uniform sampling signal.In the coefficient of the function,the periodicity of the multi-channel time-base error is used to simplify the operation and reduce the Computational complexity,and is suitable for sampling of any number of channels.The simulation results show that the proposed method can reconstruct the multi-channel high-speed parallel sampling signal effectively and the correction effect is good.

关 键 词：多通道高速采样 时基误差 非周期均匀性 三次样条插值 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]