SIFT

对一个小算法应用内点法，算法比较简单，但思路明朗。值得我们学习(Algorithm applied to a small interior-point method, the algorithm is relatively simple, but Siluminglang. We can learn)

心电信号预处理，去除肌电信号，工频信号，肌电漂移的影响(ECG signal preprocessing,removal of EMG signals, frequency signals,and electromyographic drift.)

这是关于va检测的程序。 仿真参数为: 帧数：1000 帧长：100 调制方式：bpsk 信道：3径rayleigh慢衰落信道 接收：VA检测 文件有：bpsk.m；dec_bpsk.m；trellis.m；viterbi_my.m；main.m(This is about the va testing procedures. Simulation parameters: number of frames: 1000 Frame Size: 100 Modulation: bpsk Channel: 3 Path slow rayleigh fading channel receiver: VA inspection documents: bpsk.m dec_bpsk.m trellis.m viterbi_my.m main.m)

最经典AdaBoost实现，适合初学，有大量详细的注释，容易理解(This a classic AdaBoost implementation, in one single file with easy understandable code. The function consist of two parts a simple weak classifier and a boosting part: The weak classifier tries to find the best threshold in one of the data dimensions to separate the data into two classes-1 and 1 The boosting part calls the classifier iteratively, after every classification step it changes the weights of miss-classified examples. This creates a cascade of "weak classifiers" which behaves like a "strong classifier" 。)

atan function using cordic

这是我学习时候，我的课本上的课后习题，我把他整理出来！希望大家能有所收益！(This is my study, my after-school textbook exercises, I took him out of order! Hope that we can get any benefit!)

通过一个数字信号功率谱分析程序设计的实例，详细地介绍了Visual c++和Matlab通过 engine引擎接口进行混合编程的技术，在信号处理的软件开发中采用这种方法可以提高软件开发 的效率和可靠性。(Digital signal through a power spectral analysis of programming examples, detailed description of the Visual c++ and Matlab engine through the engine mixed programming interface technology, signal processing in software development this approach can improve the efficiency of software development and reliable sexual.)

说明：  IIR滤波器设计 在设计一个IIR数字滤波器时，我们根据指标先写出模拟滤波器的公式，然后通过一定的变换，将模拟滤波器的公式转换成数字滤波器的公式(IIR filter design in the design of an IIR digital filter, we first write the analog filter based on index formula, and then through a certain transformation, the analog filters into digital filters equation formula)

buck 的matlab仿真，进行PID反馈调整，输入12v，输出5v(matlab buck)

the files related to digital audio coding