LDAmatlab

ofdm系统中降低峰均比的两中基本算法：SLM算法和PTS算法。(ofdm systems reduce the PAPR of the two algorithms: SLM algorithm and the PTS algorithm.)

说明：  一个Foxmail的辅助工具 SmartFox ，实现闪存“随身邮”功能，用来解决使用闪存时foxmail不提示已使用帐号的问题。(an auxiliary tool SmartFox achieve flash "Walkman Post" feature, intended to address the use of flash when I have not suggested the use of the account.)

吉布斯定轨法。 输入：轨道上任意三个点的位矢(R1,R2,R3)； 输出：质点在R2端点时的速度V2；ierr是个判断符号，返回的ierr是零的话，就说明‘R1,R2,R3’共面，如果ierr是1的话说明‘R1,R2,R3’不共面(正常情 况下，要构成轨道的话，‘R1,R2,R3’一定共面 ，即ierr是零，如果ierr是1的话说明输入的‘R1,R2,R3’不共面不能构成轨道。 此函数用于：任意给定三个空间共面的向量，可以确定质点在R2处的速度V2，也就得到了轨道上的一个状态向量(R2,V2),调用前面的函数就可以确定其轨道，及任意时刻的状态。(Gibbs set the track method. Input: track any three points of the bit vector (R1, R2, R3) output: particle at R2 endpoint speed V2, ierr is a judgment symbol, The ierr that is returned is zero, then, it means' of R1, R2,, R3, ' coplanar, if ierr is 1, then description' of R1, R2,, R3, ' not a total surface (under normal circumstances, you want to constitute a track, then,' of R1, R2, R3, ' a certain total surface, ierr is zero, if ierr is an instructions to enter the words ' of R1, R2, R3' coplanarity can not constitute a track. This function is used: for any given three space vector of the surface, can determine the particle at the speed V2, R2 also track a state vector (R2, V2), call the previous function can determine its orbit, and at any time of the state.)

matlab rdetection for ECG to study ecg signal

implementation of ideal lowpass filter

绘制光纤中LP02模式的光场分布,可以利用三维图形表示(plot LP02 mode in fiber)

CDMA通信系统仿真程序，可以选择不同的PN码扩频调制，有信道编码，信道加入高斯白噪声，仿真不同的检测器的的性能(CDMA communication system simulation, simulation of different detectors performance)

全桥倍流整流变换器的MATLAB仿真程序(Full-bridge rectifier transformer times MATLAB simulation program)

说明：  模型中明显地体现出模型设计主要有电流调节器和转速调节器两个负反馈闭环组成， 把转速调节器的输出当成电流调节器的输入，在通过电流调节器的输出控制后面的电路。 在这里电流环为内环，电压环为外环，所以形成了转速电流双闭环控制的直流调速系统。(The model obviously shows that the design of the model mainly consists of two negative feedback loops: current regulator and speed regulator, Take the output of the speed regulator as the input of the current regulator, and control the circuit behind it through the output of the current regulator. Here, the current loop is the inner loop and the voltage loop is the outer loop, so a DC speed regulation system with speed current double closed loop control is formed.)

this source code is chp6ex11 matlab link