4G-MIMO-OFDM-Research

提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。(extract information based on the instan eous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised.)

鲁棒性自适应波束形成。利用cvx工具包提高运算效率，降低运算量。(the roubust beamforming uses cvx.)

假设已经获得不同目标类型的一组特征值，这是可以通过模糊聚类获取哥哥目标类型在特征空间商的聚类中心，当测量到某个目标的特征值，可以通过计算目标特征为止与各个聚类中心之间的距离来判定目标的类型。(matlab fcm)

对图像进行自适应中值滤波，消除噪声的影响(Adaptive median filter to eliminate noise on the image)

移动通信中广泛存在的多径效应的相关程序代码。(The multipath of mobile communication)

锁频环程序仿真，需自行选用不同的鉴频算法，例如CPAFC等(FLL-freqence lock loop simulation)

利用matlab实现glomb编码算法，实现了数据的压缩(Coding algorithm using matlab to achieve glomb)

编写程序将含有20个数据的数组M分成两个数组：正数组P和负数组N，并分别统计两个数组的个数，显示在屏幕上。(Write a program containing the data array 20 is divided into two arrays M: positive and negative groups Array P N, and the number of two arrays statistics were displayed on the screen.)

利用 MATLAB 实现窗函数法设计 FIR 滤波器，主要是选择合适的窗函 数进行截断运算 (Window function method using MATLAB to design FIR filter, main is to choose the appropriate letter for window blocking operations.First theoretically to approximate the unit impulse response of ideal filter hd [k], to be determined by the passband and stopband attenuation index window function types, determined by transition zone FIR filter order M length (or N), and finally USES MATLAB to calculate the window function value, and hd wN [k] [k] value, so that the design of FIR filter h (k) MATLAB provides the blackman window function is: w = blackman (N) Where N is the length of the window function.)

说明：  matlab 功能强大 网上下载 据说是单片机和matlab串口通信(matlab download is said to be a powerful microcontroller and serial communication matlab)