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基于离散哈脱莱变换与离散傅里叶变换关系计算非周期信号的频谱 ,该方法与利用离散傅里叶变换的大多数算法相比优点是能减少运算量 ,提高运算速度。
Based on the relationship between Discrete Fourier transform and Discrete Fourier transform, the spectrum of non-periodic signal is calculated. Compared with most algorithms using Discrete Fourier Transform, this method has the advantage of reducing the computational complexity and increasing the computational speed.