quasi_newton

In this project an adaptive beamforming technique is proposed based on directly minimizing the BER1. A particular approach that has shown real promise in achieving substantial capacity enhancements is the use of adaptive antenna arrays. A beamformer appropriately combines the signals received by the different elements of an antenna array to form a single output. Classically, this has been achieved by minimizing the mean square error (MSE) between the desired output and the actual array output. It is demonstrated that minimum BER (MBER) approach utilizes the antenna array elements more intelligently than the standard MMSE2 approach, since it directly optimizes the system’s BER performance rather than minimizing the MSE, where the latter strategy often turns out to be deficient.

对MIMO发送、接收的各个步骤进行仿真分析，并有资料说明，适合初学MIMO知识的使用(MIMO transmission received various steps of the simulation analysis, and information on the use of suitable for beginners MIMO knowledge)

利用matlab进行数字图像处理的教程 富有源代码和说明~~(Carries on digital image processing using matlab the course)

以动画的形式模拟了随机摸火柴的过程，该程序改变后可以用于检验二项分布。(Form of animation to simulate the process of random touch matches, after the change of the program can be used to test the binomial distribution.)

It is a hologram file player/processor example.

解决最小费用最大流的问题，是一个通用程序，希望大家喜欢(Solve the minimum cost maximum flow problem is a common procedure, hope you like)

几种特殊函数(伽马，超几何，贝塞尔）的计算代码(Several special functions (gamma, hypergeometric, Bessel) calculation code)

风热或者风电功率预测软件，内附说明书，良心品质！matlabGUI编写，操作更简单！(wind power forecard)

说明：  短时交通流量预测小波神经网络的时间序列预测MATLAB源码(MATLAB source code for time series prediction of short-term traffic flow prediction by wavelet neural network)

这篇文章为随即和非随机的散射环境中造成的信封衰落提供了一个AR模型。它展示了至少需要一个二阶AR过程去建立一个伏在接收信封内在的阻尼正弦自动/交叉相关函数的模型。通过对模拟值的比较得到使用模型可以得到与理论值近似的值。模型基于的仿真过程被用来与JACK仿真器在随机分散事件中作比较。(his work presents an autoregressive (AR) model for fading envelope influenced by isotropic and non-isotropic scattering environments. It is shown that at least a second order AR process is required to model the damped sinusoidal auto/cross correlation function inherent in the complex received envelope. The comparison of statistics of the simulation trace obtained using the model shows good agreemeqt with the theoretical values. The model based simulation procedure is compared to the Jake s simulator for isotropic scattering case and is shown to exhibit an order of magnitude smaller time complexity. )