WFTgui

workshop on communication and networks

说明：  ex020100 信号合成 ex020200 信号合成 ex020300 复数序列的信号合成 ex020400 奇偶合成 ex020500 卷积计算 ex020600 卷积的图解 ex020700 卷积计算 ex02070b 卷积计算 ex020800 互相关计算 ex020700 卷积计算 ex020900 解差分方程 ex021000 解差分方程 (ex020100 signal synthesis ex020200 signal synthesis complex sequence ex020300 the signal synthesis, synthesis ex020400 parity calculation ex020500 convolution ex020600 Convolution Graphic ex020700 convolution calculations ex02070b convolution calculations ex020800 interrelated calculation e x020700 convolution ex020900 calculated differential equations ex021000 Xie Xie Differential Equations)

em算法的代码，以及K-means算法代码(em algorithm code, and the K-means algorithm code)

This is a matlab file that is simulating minimum shoft keying signals. This is a simulink file and pulse shaping is also used in it.

ex9_15 比较相参积累和非相参积累。仿真先产生信号回波。得到回拨求模的结果，计算回波的信噪比。进行非相参积累和相参积累处理，计算相参处理和非相参处理后的信噪比。(Comparison ex9_15 coherent and noncoherent. Simulation of the first echo signal. Be the result of the call-back mode for calculating the echo signal to noise ratio. For noncoherent and coherent processing, the calculation of non-coherent processing and coherent treatment of the signal to noise ratio.)

DV-hop原算法代码，DV-hop，无线传感器网络(DV-hop original algorithm code)

MUSIC算法[1]是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。(MUSIC algorithm [1] is a feature space based on matrix decomposition method. From the geometric point of view, the signal processing can be decomposed observation space the signal subspace and the noise subspace, it is clear that the two spaces are orthogonal. Signal Subspace data received by the array covariance matrix and eigenvectors corresponding to the signal component, the noise subspace from the covariance matrix of all the smallest eigenvalue (noise variance) eigenvector components.)

Simulnk动态仿真：详细介绍了在Simulnk环境下的动态仿真方法，简单易行，适合初学者(Simulnk Dynamic Simulation: Simulnk described in detail in the environment of dynamic simulation methods, is simple, suitable for beginners)

根据样本估计密度曲线的方法，也就是pavzen窗函数法，采用正态窗函数，先画直方图，在估计平滑的密度曲线(Estimated based on the sample density curve method, which is pavzen window function method, using normal windows function, the first histogram drawn in the estimated density curve smoothing)

This is used for carrier modulation