matlab读取矢量文件

用VPI搭建的相干QPSK调制解调全程序，是一个成功的光学实验调制程序。(Coherent QPSK simulation by using VPI transmission maker, a good experimental code.)

matlab 极坐标图形的绘制、三维曲线、三维网格、三维阴表面明图(matlab polar graphics rendering, three-dimensional curves, three-dimensional grid, three-dimensional surface Ming Yin Figure)

一个关于马尔可夫跳变的function函数，可以产生马尔可夫跳变(A Markov jump on the function function, you can produce Markov jump)

OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。(OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced. Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results. )

说明：  LIF脉冲神经元的Matlab实现代码。(Matlab implementation code for LIF spiking neuron model.)

基于supermap的二次开发，数据管理功能强大，除了地图的基本操作还有文件操作(Data Management is a powerful addition to the basic operation of the map file operations based on the secondary development of supermap)

包括中国一级河流及湖泊的SHP格式矢量图，可用于多平台制图(shp files of first-class rivers and lakes in China)

说明：  Performance Evaluation of DWT

此代码通过随机生成二进制码，对其进行二进制差分调制，以及加入高斯白噪声后对其解调计算误码率，绘制出其输入信噪比与输出信噪比的实验曲线及理论曲线的比较。(This code generates binary codes randomly, modulates them by binary differential modulation, demodulates them with Gauss white noise and calculates the bit error rate, draws the experimental curve and theoretical curve of their input signal-to-noise ratio and output signal-to-noise ratio.)

最小二乘算法联合判决反馈均衡器进行信道仿真，用于优化信道性能。(Joint least-squares algorithm for decision feedback equalizer channel simulation, to optimize channel performance.)