pwm整流器的建模仿真，基于互功率谱的时延估计，毕业设计有用。- Modeling and simulation pwm rectifier Based on the time delay estimation of power spectrum, Graduation usefu.

该函数用来计算任意函数的一阶偏导数(数值方法),用平面波展开法计算二维声子晶体带隙,基于互功率谱的时延估计。- This function is used to calculate the arbitrary function of the first order partial derivative (numerical methods), Computation Method D phononic bandgap plane wave, Based on the time delay est

数学方法是部分子空间法，基于互功率谱的时延估计，大学数值分析算法。- Mathematics is part of the subspace, Based on the time delay es

结合PCA的尺度不变特征变换(SIFT)算法，基于互功率谱的时延估计，毕业设计有用。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Based on the time delay estimation of power spectrum, Graduation usefu.