摘要
对电力信号基波进行测量中作者应用了CZT算法,在大量仿真计算的基础上找到了参数选择的最佳方案:选定采样频率约为基波频率的4倍,加Hanning窗,用CZT算法计算基波频率.说明了该算法精度高运算量小,文中还分析了基波测量误差对谐波分析误差的影响,可以看出,各谐波受基波的影响最大.
CZT Arithmetic was applied in mensuration of electric signal＇ s base frequency. The best method of selecting parameter was given based on emulation for calculating base frequency selecting f, about 4 times fl, and applying Hanning window, using CZT Arithmetic. This method was provided with high accuracy and less operation. By analyzing the influence of error of base frequency on error of harmonious, it shows that the main influence on harmonious is from base frequency.
出处
《河北大学学报（自然科学版）》
CAS
北大核心
2006年第3期306-309,共4页
Journal of Hebei University(Natural Science Edition)
基金
河北省教育厅资助项目(2002155)
