matlab-code-ch1

this th code of improved harmony search algorithm in matlab

瑞利散射的MATLAB仿真代码，来自汪利宏生物成像技术那本著作(Rayleigh scattering of the MATLAB simulation code, WANG Li-hong bio-imaging technology from that book)

一种优化算法，用于解决线性反转问题，程序可以直接运行，算法比较精确(An optimization algorithm is used to solve the linear inversion problem. The program can run directly, and the algorithm is more precise.)

脉搏波的多处采集点的波形，可用来进行对比，或是进行血管建模，很适合初学者(The various collection points of pulse wave waveform, can be used to compare, or modeling of blood vessels, it is suitable for beginners)

可以用FFT频谱对脑电信号进行提取。我们可以利用提取出的各个波段脑电信号，来诊断一些脑部疾病或者对大脑组织的电活动及大脑的功能状态进行分析。 1.将实验测得的脑电数据文件转换为文本文件(已经过50Hz陷波)， 获得在Matlab 平台上可直接使用的脑电信号数据，即0661.txt。 2.在Matlab中导入数据，并提取Fp1通道的脑电信号，通过FFT变换对α，β，θ，δ波段进行提取，并做FFT逆变换变到时域。 3.计算各个波段的功率谱。(FFT spectrum can be extracted on EEG. We can use the extracted EEG each band to diagnose some brain disorders or brain tissue on the brain' s electrical activity and functional status were analyzed. One would experimentally measured EEG data file into a text file (has been 50Hz notch), obtained in Matlab platform can be used directly EEG data, that 0661.txt. (2) import data in Matlab and extract Fp1 channel EEG by FFT transform α, β, θ, δ bands were extracted, and do FFT inverse transform variable to the time domain. 3 calculate the power spectrum of each band.)

说明：  eeg计算，用于EEG的demo计算，生物医学工程信号处理(EEG calculation, demo calculation of EEG, signal processing of Biomedical Engineering)

说明：  神经元细胞HH 模型的仿真。可视化地模拟，结构清晰。(This is a simulation of Hodgkin-Huxley equations using simulink blocks)

基于差分法的QRS波检测算法程序（PAN.J, TOMPKINS. W.J： A Real-Time QRS Detection Algorithm 对应的matlab程序）。(QRS detection algorithm program based difference method (PAN.J, TOMPKINS WJ:. " A Real-Time QRS Detection Algorithm" corresponding matlab program).)

说明：  ECG的应用：ECG在医疗检测方面发挥着中重要作用，本文中包含ECG 的Q波检测和ECG的分类，所以，心电信号至关重要。(Application of ECG: ECG plays an important role in medical detection. This paper includes Q wave detection of ECG and classification of ECG, so ECG signal is very important.)

使用KL变换和主分量分析的人脸识别小程序，使用MATLAB(KL transform and use PCA Face Recognition small, the use of MATLAB)