一种基于四阶累积量的谐波恢复的方法，在噪声抑制和谐波估计方面具有一定的优势。-A four-order cumulant-based harmonic retrieval methods, in the noise suppression and harmonic estimates have certain advantages.

vc++编程设计切分窗口后左边画椭圆 右边数个数-vc++ Programming segmentation window painted oval on the left the right side of the number of number of