【摘要】 分数阶傅立叶变换可以看作是傅立叶变换的推广,在回顾实倒谱有关理论基础上,给出基于分数阶傅立叶变换的倒谱——分数倒谱。同时也讨论了分数倒谱在盲chirp信号处理中的应用。仿真实验验证,即使在很低信噪比下,相关算法仍能有效工作。更多还原

【Abstract】 The Fractional Fourier Transform can be considered as Fourier Transform generalization. After the theory of real cepstrum is reviewed, the fractional cepstrum is presented based on Fractional Fourier Transform. At the same time, how to using the fractional cepstrum is discussed in blind chirp signal processing. A numerical result confirms that the proposed fractional cepstrum does work even at low signal-to-noise ratios.更多还原