信号周期的一种数字化测量方法  

The Period Precise Evaluation of Periodic Waves

作　　者：梁志国[1] 孙璟宇[1] 

机构地区：[1]长城计量测试技术研究所,北京100095

出　　处：《仪器仪表学报》2003年第z1期195-198,共4页Chinese Journal of Scientific Instrument

摘　　要：介绍了精确评价周期信号序列的周期的一种方法 ,使用的手段是数字滤波与正弦波曲线拟合 ,并讨论了其拟合误差情况。以两组仿真实验结果 ,验证了本文所述方法及过程的正确性和实用性 。In this paper, a method of precise evaluation on the frequency or period of periodic wave series is introduced, that is the digital filtering and the least mean square sine wave curve fitting. The errors of curve fitting are also discussed. By two group imitation experiments, the correctness and practicability of this method are proved, so the period precise evaluation of periodic waves is realized.

关 键 词：周期信号 频率 周期 评价 数字滤波器 

分 类 号：TN91[电子电信—通信与信息系统]