wenzishibie

series compensator facts devicesd

说明：  利用小波变换实现对故障信号的特征提取 构造特征向量(Wavelet transform feature extraction of fault signals structural feature vector)

说明：  这是SAR成像点目标仿真中的CS算法，程序严格按照Ian G. Cumming的《合成孔径雷达成像算法与算法》中CS算法来编写，对于学习CS算法的同学来说是入门级的仿真程序(CS SAR imaging point target simulation algorithm, the program written in strict accordance with the Ian G. Cumming synthetic aperture radar imaging algorithm and algorithm CS algorithm is the entry-level simulation program for students learning the CS algorithm)

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.)

在带限信道信号传输的仿真。仿真4PAM调制信号在AWGN信道下的性能，画出误比特率和误符号率。 (In the band-limited signal transmission channel in the simulation. Simulation 4PAM modulated signal in AWGN channel performance.)

given a line function, compute the intersection of the line with the perimeter of a 2D box so that the line can be plotted. called by perceptron.m.

基于期望最大化的时变参数建模，时频分辨率高(Based on expectation maximization of time-varying parameter modeling, high time-frequency resolution)

2进制移频键控的源代码，运行后得到正常结果！(2 binary frequency shift keying of the source code, running the results are normal!)

基于MATLAB的处理表格型数据的数值积分的一种简单方法(Forms of treatment based on the MATLAB data type of a simple numerical integration methods)

实现短时傅里叶变换的功能。分为两种方式：1、matlab自带函数；2、自行编写程序。自行编写的程序效果更加，绘制时频分布图更清晰准确。（附带几篇参考文章）(Short time Fourier transform. Divided into two ways: 1 matlab own function own programming. Write your own program was more plotted frequency distribution more clearly and accurately. (With several reference articles))