PV_TS_2

说明：  分析了几种常用的模式识别方法，对几种方法进行比较分析，对初学者有帮助(Analysis of several commonly used pattern recognition method, a comparative analysis of several methods, help for beginners)

说明：  sobel operator implementation in matlab

四阶龙格库塔法解微分方程组实例，没有调用函数，而是在基本含义基础上进行编译，有助于对龙格库塔法的理解。(Fourth-order Runge-Kutta method for solving differential equations instance, did not call the function, but on the basis of the basic meaning of compiler, contribute to the understanding of Runge-Kutta method.)

说明：  c语言实现盲均衡算法，还有cma算法的改进(The implementation of blind equalization algorithm in C language and the improvement of CMA algorithm)

利用matlab进行阻尼振动计算的例子。(using Matlab for vibration damping calculation example.)

echo cancellation adaptive filter

编写一个含QAM传输的发送和接收模块 1)分别采用复基带仿真和实带通仿真两种形式 a) 实带通仿真时, 载波频率为符号率的4倍 b)发端采用滚降系数0.5的根号升余弦滤波器 2)画出Eb/N0=15dB时的接收波形(收滤波前),取100个采样 3)画出发端输出的眼图和收端过匹配滤波后的眼图(画眼图时不加噪声) 统计误符号率和误比特率与Eb/N0的关系,画出曲线, 与理论计算的曲线相对比 (Prepare to send of one with QAM transmission and receiver module 1), respectively, the complex baseband simulation and the real band-pass simulation in two forms a) the real band-pass simulation, the carrier frequency used for the symbol rate of 4 times b) the originator roll-off factor of 0.5 root raised cosine filter, 2) draw Eb/N0 = 15dB when the received waveform (closing filter), take 100 samples) to draw the originator of the output eye diagram and income side of the eye diagram after the matched filter ( draw the eye diagram without noise) statistics symbol error rate and bit error rate and Eb/N0, draw a curve calculated with the theoretical curve compared)

基于瞬时无功功率的谐波检测，ip，iq法。已验证(Harmonic detection based on instantaneous reactive power)

此程序和fn_DBn_2D程序是一起的，用于测试fn_DBn_2D程序的分解和重构效果，里面用到了一副典型图象：babala。(This procedure and the procedure is fn_DBn_2D together for testing procedures fn_DBn_2D effects of decomposition and reconstruction, which uses a typical image: babala.)

依据自相关运算和互相关运算的原理，对一信号进行自相关操作(Based on autocorrelation and cross correlation by using the principle of a signal from the correlation operation)