DSP_MATLAB

在WINDOWS环境下，使用MATLAB写的PCA代码，移植性好，对于做PCA的能方便使用！(In the WINDOWS environment, the use of PCA written in MATLAB code, portability, and for doing the PCA can easily use!)

清华大学MATLAB综合实验 c语言要求较高 能很好的辅导作用(Tsinghua University the MATLAB integrated experimental c language require a higher good counseling role)

这是关于微电网的，一个微电源电池储能单元，采用下垂控制方法，另一个微电源光伏单元，采用PQ控制方法。(This is about the micro-grid, a micro-power battery energy storage unit, using the droop control method, another micro-power photovoltaic cells, using the PQ control methods.)

正弦sin映射，要学习混沌的可以了解下，还有pdf曲线(Sine mapping with pdf curve, learning chaos can understand)

说明：  Matlab编写的粒子滤波算法源程序，内含中文程序注释(Matlab prepared on the particle filter algorithm simulation source)

This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated. The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.

一组取值为+/-1的随机序列，每两个数据之间插入3个0，然后将序列通过一个设计好的根升余弦滤波器，并用周期图法和Welch法分别绘制信号的功率谱。再次通过根升余弦滤波器后用stem函数绘图。(A set of values ​ ​ is+ /-1 random sequence inserted between every two data 3 0, then the sequence through a root raised cosine filter designed, periodogram and Welch method to draw the signal powerspectrum. Stem function by root raised cosine filter with drawing again.)

LMS最小均方误差算法matlab仿真程序(LMS least mean square algorithm matlab simulation program)

2FSK的调制解调，基于simulink的仿真(2FSK-simulink)

This code uses lagrange interation to calculte user s position in indoor case.