我编写的提取心音信号的包络，matlab编写

双线性iir数字滤波器的设计。。。。。。。(Bilinear design of iir digital filter)

说明：  关于论文 SpotFi: Decimeter Level Localization Using WiFi 的matlab复现代码，可以通过wifi实现分米精度的定位(Code review of Spotfi using matlab)

虹膜识别的内外边缘图像分割，包括瞳孔的分离，还有外边界的分离(Iris recognition both inside and outside the edge of image segmentation, including the separation of the pupil, as well as outside the borders separating)

采用二次型性能指标学习算法的PID控制程序，欢迎下载。(The use of quadratic performance index of the learning algorithm PID control procedures, please download.)

A good guideline for objective c programmers.

3 phase single switch uni directional boost converter

Structured covariance estimation. The routine takes a covariance matrix as input and returns the Toeplitz matrix that lies closest to it, in the sense that it minimizes the Kullback-Leibler divergence between the two. Input must be a real, square, symmetric and positive semi-definite matrix.

this is file for traffic networks benchmarks...

基于KL变换的人脸识别技术，有测试样本和使用说明(KL transform based face recognition technology, test samples and instructions for use)

matlab灰色关联度预测模型，带详细说明。 并计算残差，相对误差，级比偏差值。(Matlab gray relational grade prediction model, with detailed instructions. And calculate the residuals, the relative error level than the deviation.)