pca-sift

用数值分析中的二分法求解函数值。很简单，但是正确，可以直接使用(bisect)

在这个实验中，需要输入一个整周期内100个采样点的值，没有利用查找表的方法实现，而是直接在程序中输入100个采样点的值。2FSK/2PSK主要包括两部分2FSK信号发生器和2PSK信号发生器。2FSK信号发生器主要有分频器，m序列产生器，跳变检测，正弦信号发生器和DAC几个部分组成。2FSK的关键是通过判断信号跳变是来改变频率的变化，2PSK的关键是通过信号的跳变来改变相位的变化。(psk)

利用MATLAB产生7位、13位巴克码并画出频谱图。(Generated 7、13 Barker code and draw the frequency spectrum using MATLAB. )

直接序列扩频通信系统误码率的仿真分析PN码同步方法的比较与仿真(this is a pn sequences mode)

读取GPS导航电文的函数，是德国GPS接收机计算官网提供的程序中的一部分。(Reads the GPS navigation message function is programmed GPS receiver calculates the German official website provides part.)

this codes about design antenna dipole in MIMO.The implementation is based on the earlier implementations of WINNER II interim model [

It is code for( 33 and 69 bus IEEE data) Newton-Rapshan method and D.G. placement code also. One code is for minimizing a function using particle swarm optimization technique.

利用ABCD矩阵的方法判断包含三个球面反射镜的环形谐振腔的稳定性，以及腔内的光斑分布(By using the method of the ABCD matrix judgment contains three spherical mirror the stability of a circular cavity, and the cavity of light distribution)

说明连续时间傅里叶变换与DTFT、DFT之间的关系，及由FFT求连续时间傅里叶变换的方法。文档说明加MATLAB代码(This project is about the relationship of CTFT, DTFT and DFT, how to calculating CTFT by using FFT. This project contains document and matlab code.)

qr算法的matlab代码，利用矩阵的QR分解，逐步按递推法构造矩阵的分解序列的过程，只要原始矩阵式非奇异矩阵，则由QR算法就完全确定其分解序列了(qr algorithm matlab code using a QR decomposition of the matrix, step by step process of the recursive method to construct the matrix decomposition sequence, as long as the original matrix nonsingular matrix by the QR algorithm completely determine the sequence of its decomposition)