alamouti1

说明：  MATLAB以矩阵作为数据操作的基本单位，还提供了十分丰富的数值计算函数。MATLAB和著名的符号计算语言Maple相结合，使得MATLAB具有符号计算功能。(MATLAB with matrix as the basic unit of data manipulation, it also provides a very rich numerical functions. MATLAB and the famous combination of symbolic computation language Maple, MATLAB has a symbolic computing makes.)

说明：  　本文对变步长自适应滤波算法进行了讨论,建立了步长因子μ与误差信号e(n) 之间另一种新的非线性函数关系. 该函数比已有的sigmoid 函数简单,且在误差e(n)接近零处具有缓慢变化的特性,克服了Sigmoid 函数在 自适应稳态阶段步长调整过程中的不足. 由此函数本文得出了另一种新的变步长自适应滤波算法,并且分析了参数α,β的取值原则及对算法收敛性能的影响. 该算法有较好的收敛性能且计算量少. 计算机仿真结果与理论分析相一致,证实了该算法的收敛性能优于已有的算法.(In this paper, variable step adaptive filter algorithm to discuss the establishment of a step factor μ and the error signal e (n) between another new nonlinear function. The function has a sigmoid function than the simple and the error e (n) close to zero Department has a slow change in the characteristics of a Sigmoid function to overcome the steady-state phase in the adaptive step length adjustment during the process. this function, this paper gives another new variable step size adaptive filtering algorithms, and analysis of the parameters α, β the value principles and the convergence performance. The algorithm has better convergence performance easy to calculate. Simulation results and theoretical analysis, confirmed the convergence of the algorithm better performance than existing algorithms.)

通过matlab编程实现了通信原理中的模拟频率调制（FM)，并画出了波形。(this source code can realize the fm modulation in communication principles.)

Bot hunter code for new users

实现了DQPSK下用Gardner算法实现位同步，并对信噪比、余弦滚降因子的影响加以讨论(achieve symbol synchronous by Gardner in the condition of DQPSK)

要用灰色模型预测2020年人口数，请赐教(In the gray prediction model to the population in 2020 ..)

this file contain matlab code for filter design process

在matlabzhong 运用5种不同的梯度增强法对图像进行图像锐化(For image sharpening use five different gradient Enhancement Act)

本文分析了SVPWM控制策略的原理，并分析了SVPWM控制策略在三电平逆变器的应用。在理论研究之后，本文采用MATLAB/Simulink仿真软件对上述SVPWM控制策略方法进行了仿真，通过仿真验证了它的正确性。(this paper analyses the theories of NPC three-level inverter and SVPWM.After the studying of theory,this paper simulates the NPC three-level inverter with SVPWM,)

matlab中QPSK的simulink仿真，包括星座图以及频谱分析(The simulink matlab in QPSK simulation, including constellation and spectrum analysis)