FDM

3阶iir滤波器设计，不采用matlab自带的滤波子程序，完全自己编写程序，可以十分方便的转化为c语言。(3-order IIR filter design, do not use built-in filtering matlab Subroutine entirely their own programming, can be transformed into a convenient c language.)

code for image processing

切比雪夫滤波器的matlab实现代码，数字信号处理(Chebyshev filter matlab to achieve the code, digital signal processing)

金属氢化物热泵合金匹配的程序，可以通过数据表格交互选择适用一定温度的配对(The pair of metal hydrdies can be chosen from existing candidates by operating temperature )

这是matlab里面比较经典的直流电机的仿真模型，初学者在不会的条件下，可以看看(This is a MATLAB simulation model of the classic DC motor, starter without conditions, check out)

说明：  使用matlab语言编写的三种PID优化程序，通过对比展示优化效果(Using MATLAB language to write three kinds of PID optimization program, through the comparison to show the optimization effect)

Spectrum Digital tests example dm365

说明：  通过经验模态分解emd波形分割，将脉冲波形分为多个部分，基于EMD的时频分析方法既适合于非线性、非平稳信号的分析(By empirical modal decomposition emd waveform segmentation, the pulse waveform is divided into several parts, and the time frequency analysis method based on EMD is suitable for nonlinear and non-smooth signal analysis)

fsk调制解调matlab代码，给出了在噪声信道条件下fsk的调制和教条的matlab实现，并给出了误码率(fsk modulation and demodulation matlab code is given in the noisy channel conditions, fsk modulation and dogmatic matlab implementation, and gives the bit error rate)

voltage source inverter