摘要
以航空地面电源的供电特点为基础,重点讨论比较了快速傅里叶变换基2算法、基4算法和分裂基算法的优缺点,确定了基2 FFT算法进行谐波检测。并在仿真的基础上,提出了一种利用最小二乘法进行谐波参数估计的新方法,仿真结果表明该方法可以有效地提高检测精度。
Based on the supply characteristics of aviation ground power,we studyed the advantages and disadvantages of the radix-2 algorithm,radix-4 algorithm,and split-based algorithm and introduced radix-2 FFT algorithm for harmonic detection.Simulation based on a least square method used for harmonic parameters estimation shows that the method can effectively improve the detection accuracy.
出处
《河北工业科技》
CAS
2009年第5期408-410,共3页
Hebei Journal of Industrial Science and Technology
关键词
傅里叶变换
窗函数
最小二乘法
Fourier transform
window function
least square method
