hw1_pr4

pid design by pso algorithm

对高斯信道下的MATLAB仿真，还有锐利信道，还有些误码曲线，信噪比的统计(Gaussian Channels MATLAB simulation, there are sharp channel, and some error curve, the statistical signal to noise ratio)

说明：  用有限差分法解一维定态薛定谔方程的5个最小的本征值(Calculate the first five normalized eigenfunctions and eigenvalues using a direct method.)

结合广义旁瓣滤波（GSC）和理想二值掩蔽（IBM）的麦克风阵列语音增强算法(microphone array speech enhancement based GSC and IBM )

局部线性嵌入算法，由laurance等人于2000年science上发表，广泛应用于图像处理模式识别等领域，是一种流形学习算法。(the algorithm of locally linear embedding)

Matlab code - Cubic spline method

Atomatic Gain Control

自己写的matlab源码，用于球信号包络，非常好用，简单可靠。(Write their own Matlab source code for the ball signal envelope, very easy to use, simple and reliable.)

low pass filter for denoising ecg

this is matlab program for turbo code set up.