DSSS-communications-system

高斯法求解方程，在matlab中建立，求解方程并显示运算时间结果，用于对高斯法有一个更直观的认识。(Gauss method for solving equations, established in matlab, solving equations and displays the computation time results for the Gaussian method has a more intuitive understanding.)

本程序仿真了AWGN信道下，采用DS扩频对bpsk信号的影响，扩频码采用walsh码，扩频因子16； 接收端进行rake接收，然后分集合并，比较了三种分集方式对误码率的影响 从图像可以看出在扩频因子较高的情况下，最大比值合并与等增益合并性能相近(This program simulates the AWGN channel, using DS spread spectrum signal for bpsk influence spreading code using walsh code spreading factor 16 Rake receiver receiving end, and diversity combining, diversity compares three methods on the bit error rate of As can be seen from the image in the case of higher spreading factor, the maximum ratio combining and equal gain combining similar performance)

利用Capon, MUSIC进行窄带信号空域信号方向估计。比较分辨率性能。观察阵元数、信噪比、快拍数对估计器性能的影响。 (Using Capon, MUSIC for narrowband signal airspace signal direction estimates. Comparative resolution performance. Observe the number of array elements, signal to noise ratio, the number of snapshots on the estimator performance.)

天线方向图的波达方向，用于描述回波的方向图6，可以用于初学者学习使用(DOA antenna pattern, used to describe the echo pattern 6 can be used for beginners to learn to use)

分数阶傅里叶变换的matlab编程，特别适合处理线调频信号(Fractional Fourier transform matlab programming, especially suitable for handling wire FM signal)

说明：  matlab编程例子，包括数值分析、绘图以及其他的一些高级应用。(matlab programming examples, including numerical analysis, mapping and other advanced applications.)

在AWGN信道下采用BPSK调制，对于一个给定生成矩阵和union bound的线性码，我们得到求解其重量分布的方法。。(Compute the weight distrubution of a linear code given its generator matrix and the union bound on its performance with BPSK modulation over an AWGN channel.)

thesis in matlab regarding performance of wimax in multifade envoirnment

模糊RBF网络逼近和混合Pi-Sigma神经网络逼近(Fuzzy RBF and Pi-Sigma Approaching)

Matlab与FEAP有限元程序的接口，可以在Matlab中调用FEAP的功能。(Matlab and the finite element program FEAP interface, you can call FEAP Matlab function.)