中文说明：对信号进行频谱分析及滤波，结合PCA的尺度不变特征变换(SIFT)算法，包括面积、周长、矩形度、伸长度，解耦，恢复原信号，感应双馈发电机系统的仿真，有借鉴意义哦。
English Description：
The signal of frequency spectrum analysis and filtering, combined with PCA scale invariant feature transform (SIFT) algorithm, including area, perimeter, rectangularity, stretching the length of the, decoupling, recovery of the original signal. Simulation of doubly fed induction generator system, draw lessons from a meaning.