FFT和FRFT的非平稳干扰估计和抑制Based on FFT and FRFT estimates of non-stationary interference and inhibition-Based on FFT and FRFT estimates of non-stationary interference and inhibition

使用frft变换来估计线性调频信号的初始频率和调制斜率，估计精度高，不含噪声滤波。