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非均匀采样系统时基失真的一种新评价方法

梁志国 孟晓风

梁志国, 孟晓风. 非均匀采样系统时基失真的一种新评价方法[J]. 北京航空航天大学学报, 2010, 36(10): 1203-1206.
引用本文: 梁志国, 孟晓风. 非均匀采样系统时基失真的一种新评价方法[J]. 北京航空航天大学学报, 2010, 36(10): 1203-1206.
Liang Zhiguo, Meng Xiaofeng. Novel evaluation method of time base distortion of nonuniformly sampling data acquisition systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(10): 1203-1206. (in Chinese)
Citation: Liang Zhiguo, Meng Xiaofeng. Novel evaluation method of time base distortion of nonuniformly sampling data acquisition systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(10): 1203-1206. (in Chinese)

非均匀采样系统时基失真的一种新评价方法

详细信息
    作者简介:

    梁志国(1962-),男,黑龙江巴彦人,博士生,lzg304@sina.com.

  • 中图分类号: TM 930.114

Novel evaluation method of time base distortion of nonuniformly sampling data acquisition systems

  • 摘要: 提出了在多A/D合成采样系统这种非均匀采样系统中,使用时基微分非线性和时基积分非线性概念评价采样时基失真的新方法.使用正弦波激励系统,将各个子A/D的数据分别抽取形成子抽样序列,用最小二乘正弦波曲线拟合法,获得各个子抽样序列初始相位差,该相位差对应的时间差,即是各个子A/D间的采样延迟时间,它们的一致性,即是系统的采样均匀性,体现了时基失真特性,用时基微分非线性和时基积分非线性描述.在一组仿真数据上进行的实验验证了方法的正确性.在数字存储示波器的实测数据上进行的实验验证了方法的可行性.方法可以用来评价非均匀采样系统的采样时基失真.

     

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出版历程
  • 收稿日期:  2009-09-14
  • 网络出版日期:  2010-10-31

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