HeShiGongShi

根据已给ecg数据文件，画出心电图波形，并自动标记出特征点位置，并计算P-R时间间隔 等参数。 附件是.dat为数据文件，为二进制文件，每2个字节代表一个采样点，采样频率1000hz。依 次为1-12导联的第一个采样点，其次是1-12导联第二个采样点，.... .hea头文件是文本格式说明文件，可以看到十二导联存放的先后顺序。 (According to the data file has to ecg, draw the ECG waveform, and automatically mark the feature points, and calculate parameters such as PR interval. The attachment is. Dat for data files, binary files, each 2 bytes represent a sampling point, the sampling frequency 1000hz. Followed by a 1-12 lead in the first sampling point, followed by 1-12 second sampling point lead ,..... Hea header file is a text file format that you can see the sequence)

实现产生伪随机序列的部件 —— 线性反馈移位寄存器单元。 SFlog2为扩频因子的底数为2的对数值，cycle为PN序列的周期，其值为2^SFlog2。initial_state为移位寄存器的初始状态，generator_polynomial_coefficient为生成PN序列所需的本原多项式，对应于移位寄存器的连接向量。(The realization of pseudo-random sequence generated components- LFSR unit. SFlog2 factor for the spread-spectrum base 2 of value, cycle for the PN sequence cycle, its value is 2 ^ SFlog2. initial_state shift register for the initial state, generator_polynomial_coefficient to generate the necessary PN sequence primitive polynomial, corresponding to the shift register connection vector.)

说明：  有关数学建模的源码和教程，对于初学者很有用(The mathematical source code and tutorials, useful for beginners)

matlab 程序 用于成学matlab的人 很好的(matlab program for matlab people into learning good)

matlab simulink model reciver

新颖的BP神经网络，加入了遗传算法改进，并且样本数可调(Novel BP neural network, adding a genetic algorithm to improve, and the number of samples is adjustable)

用于数字信号处理教学中的基于simulink的实例(The examples provided in this file can be used to teach signal processing courses.)

pls算法集合，包含表格数据读取，过程变量降维、潜变量的投影方式(pls、pca algorithm)

code turbo for form CDMA

利用时域有限差分法(FDTD法)对三维时谐电磁场进行模拟(Using finite difference time domain method (FDTD method) of three-dimensional time-harmonic electromagnetic field simulation)