特征提取程序

Chapter 5 - Linearization

anny边缘检测算子是John F. Canny于 1986 年开发出来的一个多级边缘检测算法。 Canny边缘检测算法： step1:用高斯滤波器平滑图象； step2:用一阶偏导的有限差分来计算梯度的幅值和方向； step3:对梯度幅值进行非极大值抑制； step4:用双阈值算法检测和连接边缘。(anny edge detection operator is John F. Canny developed in 1986 out of a multi-level edge detection algorithm. Canny edge detection algorithm: step1: Gaussian smoothing filter image step2: first-order finite difference to calculate partial derivatives of the magnitude and direction of the gradient step3: the gradient magnitude non-maxima suppression step4: use dual-threshold algorithm for detecting and connecting edges.)

1. 基于simulink搭建一个QPSK发送链路，QPSK调制信号经过了瑞利衰落信道，观察信号经过衰落前后的星座图，观察信道特性。仿真参数：信源比特速率为500kbps，多径相对时延为[0 4e-06 8e-06 1.2e-05]秒，相对平均功率为[0 -3 -6 -9]dB，最大多普勒频移为200Hz。(1. Based on simulink structures, QPSK sent a link, the Rayleigh fading channel after the QPSK modulation signal, were observed before and after signal after the decline of constellation diagram, observation channel characteristic. Simulation parameters: the source is 500 KBPS bit rate, relative multipath time delay of [0 8 e 4 e- 06-06 e-05] 1.2 seconds, the relative average power is [0-3-6-9] dB, most of the doppler frequency shift is 200 hz.)

2ASK的链路仿真，信号源的产生，PCM编码，调制解调以及加燥 (2 fsk link simulation signal source, PCM coding and modulation demodulation and dry)

基于matlab的摸拟退火算法研究（很经典）(Based on the simulation annealing algorithm matlab Study (classic))

详细的介绍了matlab仿真的原理与技术，具有重要的意义(Detailed description of the matlab simulation theory and technology of great significance)

模糊PID控制器的MATLAB仿真程序 模糊控制器内部原理图，以及2个输入，1个输出的隶属度函数图。 (Fuzzy PID controller MATLAB simulation program internal schematic diagram of fuzzy controller, and two inputs, one output membership function chart.)

基于matlab的卡尔曼滤波算法的理论介绍和仿真实践，对于信号处理专业的学生入门有帮助(kalman filtering)

Runge-Kutta method for Rosseler attractor (chaotic map)

这是关于支持向量机SVM方面的代码,大家可以用一下(on support vector machines SVM area code, we can use this)