inverse work example

解决最大匹配问题的程序，经过调试，运行正常，并附上测试程序(Maximum matching problem solving process, after commissioning, operating normally, along with test procedures)

验证企业信息中的组织机构代码的合法性，错误会提示并定位到出错的地方，可以在离开焦点时验证(organize code check)

svpwm控制信号，可以通过此信号完成对三相整流或逆变电路的SVPWM控制。(svpwm control signal, the signal can be done by this three-phase rectifier or inverter circuit SVPWM control.)

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

neural network algorithm, BP method

matlab环境下计算MFCC参数（mel倒谱参数），lpcc参数（线性预测倒谱）和pitch（基因）(calculate mfcc lpcc pitch )

本文档是关于matlab的基带成型滤波器的设计，设计思路，及实现方法(matlab)

this program treat image processing and segmentation methods and can help for functions which concern segmentation, cv-master

用matlab编写的代码，可以正确识别车牌号码(Written with the matlab code, you can correctly identify the license plate number)

精通MATLAB最优化计算的书籍，精通matlab必读之书(The most proficient in MATLAB Optimization)