中文说明：
Prony算法用来提取信号的幅值、频率、衰减因子和初相角。它在电力系统低频检测，谐波检测等方面运用非常广泛，但是缺点是抗噪性差，它的信号提取能力强，模拟曲线的能力强，但为了提高它的抗噪性，最好与其它方法相结合。
English Description：
Prony algorithm is used to extract signal amplitude, frequency, attenuation factor and initial phase angle. It is widely used in power system low-frequency detection, harmonic detection and other aspects, but the disadvantage is poor noise immunity, its signal extraction ability is strong, the ability of analog curve is strong, but in order to improve its noise immunity, it is best to combine with other methods