pufenxi

this code helps us to compress a text using huffman algorithm

永磁同步电机空间矢量脉冲宽度调制matlab仿真 (Permanent magnet synchronous motor space vector pulse width modulation)

PIE FACE 数据库用于计算机视觉中的人脸识别，多姿态，多角度，有不同光照(PIE FACE DATABASE)

PML边界的源码在计算电磁学中有很大应用大家好好学习！！！(PML boundary in the calculation of electromagnetic source has great application in the study study hard everyone! ! !)

希尔伯特-黄变换的matlab代码，仅供参考(Hilbert-Huang Transform)

this function used to calculate COFACTOR

扩频通信条件下采用QPSK，脉冲干扰条件下仿真误码率的变化(Under the conditions of use of spread spectrum communication QPSK, pulse jamming simulation of changes in the error rate)

伯格算法实现谱估计，不同阶数的AR模型功率谱估计(Berg algorithm spectral estimation, different order AR model power spectrum estimation)

DFT和FFT的matlab实现及算法差异的证明，如复杂度等。（精度、不同长度的序列等）。(DFT and FFT algorithm matlab realize the difference and proved as complex and so on. (Accuracy, sequences of different lengths, etc.).)

单自由度振动系统，求其频响函数，改变质量，阻尼，刚度对频响函数的影响(Single degree of freedom vibration system, find the frequency response function, changing the impact mass, damping and stiffness of the FRF)