simulink_learn

在matlab中计算单位冲击脉冲响应曲线，冲击脉冲有5种，初始条件为0(in Matlab calculations unit impulse response curve, the impact of a pulse 5, the initial conditions 0)

基于FFT 和专家系统的BLDCM 系统故障检测与识别.pdf(Fault detection and identification for dual-redundant BLDCM system using FFT algorithm and expert system approach)

观察高次插值多项式的龙格现象： 给定函数f(x)=1/(1+25x^2)(-1<x<1).取等距节点，构造牛顿插值多项式N5（x）和N10（x）及三次样条插值函数S10（x）。分别将三种插值多项式与f（x）的曲线画在同一坐标系上进行比较(Observation of high order polynomial interpolation Runge phenomenon: the given function f (x) = 1/(1+25x ^ 2) (- 1 <x<1).取等距节点，构造牛顿插值多项式N5（x）和N10（x）及三次样条插值函数S10（x）。分别将三种插值多项式与f（x）的曲线画在同一坐标系上进行比较)

说明：  MATLAB边值问题求解的文档和源代码，好东西啊，强烈推举爱女(MATLAB to solve boundary value problems for the documentation and source code, good things ah, strongly favored daughter elected)

通信系统设计，数字带通传输系统仿真Matlab代码 1. 比较BPSK与QPSK两种调制方式的误码率和误比特率性能（注意QPSK的误码率不同于误比特率），横坐标为SNR，并与理论曲线比较，分析解释仿真图。 2. 要求使用Matlab/C语言/Matlab-simulink中的任一种工具实现。 3. 代码中每个模块都要有详细注释说明。 (Communications systems design, digital bandpass transmission system simulation Matlab code 1. Comparison of BER QPSK and BPSK modulation methods and bit error rate performance (note QPSK error rate is different bit error rate), the horizontal axis is SNR, and compared with the theoretical curve, analysis and interpretation of simulation map. 2. requires the use of Matlab/C language/Matlab-simulink any one tool to achieve. 3. The code of each module must have a detailed explanatory notes.)

三相PWM逆变器，采用双闭环控制，内环电流，外环电压~~~~(Three-phase PWM Inverter with Double Closed Loop Control)

SAR回波成像处理程序，采用波数域算法，参考《合成孔径雷达成像算法》一书(SAR echo imaging processing procedures, wavenumber domain algorithm, see " synthetic aperture radar imaging method a book)

仿射变换 matlab 程序 关于2维配准(Affine transformation matlab program on the 2-D registration)

对于移动通信系统主要有两类衰落：大规模衰落和小规模衰落。大规模衰落表示由于大范围内移动而引起的平均信号能量的减少或路径损耗。而小规模衰落则表现为两种机制：信号的时延扩展和信道的时变特性。对于无线应用，信道的时变特性是由于发射机和接收机相对移动而造成传输路径的变化。这些传播条件的变化速率影响衰落率。如果存在大量反射路径而不存在视行信号分量，此时的小规模衰落称为瑞利衰落(Rayleigh fading)，接收信号的包络由瑞利概率分布函数统计描述。这种衰落也就是这次实验我准备研究的(system for mobile communications fading there are two main categories : large-scale and small-scale fading fading. In view of large-scale decline of large scale movement of the average energy of the signal path to reduce or loss. And the decline of small-scale, it was manifested as two mechanisms : signal delay expansion and channel time-varying characteristics. For wireless applications, channel time-varying characteristics as transmitter and receiver relative movement caused transmission path changes. These conditions spread of the rate changes affect the rate of decline. If there is a large number of pathways exist without depending on the signaling component, At that time, the decline of small-scale known as Rayleigh fading (Rayleigh fading). The received signal envelope from Rayleigh )

说明：  <<现代信号处理教程>>(胡广书版)书中配套的matlab源代码。(this is a matlab code of the book called modem signal processing.)