traveling_salesman_demo

说明：  for Runge-Kutta method

matlab界面编程的一个实例，通过这个实例可以轻松掌握界面编程的知识(matlab programming interface of an example, through the example of programming interface to easily grasp the knowledge)

BPSK和QPSK的调制程序，完全按照通信原理书上的步骤做的，仿真结果正确(BPSK_QPSK_Modulation)

performs hough transform well

信号模拟，分析以及应用可以分析波形的变换，频率周期的转换等。(Ocean Wave Theory of Physical Oceanography hydrodynamic theories programming model)

介绍了 Cohen类双线性时频分布并针对交叉干扰项影响无法完全消除的问题进行了重排时频变换以提取及分辨 含有白噪声和窄带周期干扰的局部放电信号。处理仿真和现场检测到的局部放电超声信号时根据白噪声和窄带 周期干扰信号在时域上的平稳性特性发现重排 Cohen类时频变换方法不仅可以很好地将局放信号和背景噪声以 及窄带周期干扰信号分辨开来,而且大大减弱并抑制了交叉干扰项的影响,保持了更高的时频分辨率和时频聚集 性,从而验证了重排 Cohen类时频变换方法的有效性。 (In order to express the partial discharge ( PD) information of gas insulated switchgear ( GIS) in time-frequency domain, weintroduced theCohen? s class bilinear time-frequency distribution and its reassigned time-frequency transform method to pick up and distinguish theultrasonic signals in field from the whitenoises and narrow band periodic interference signals using the acousticemission ( AE) technology. After the processing of the simulated and PD ultrasonic signals in field, and according to the stationary feature of white noises and narrow band interference signals, wedraw a conclusion that the reassigned time-frequency distribution method can not only distinguish thePD signal from back ground noises and narrow band interference signals, but also decrease and restrain the influenceof cross-items, and acquire better time )

经典的PSO粒子群优化算法，用于解决无约束优化问题(Classic PSO particle swarm optimization algorithm for solving unconstrained optimization problems)

说明：  matlab图像处理小程序,包括，图形显示、滤波，除噪、变换等。适用于一些新手。(MATLAB image processing procedures, including graphics display, filtering, denoising and transform. Apply to beginners.)

thats a graet pdf to compare dtc and vector control of pmsm

复旦大学自动控制理论matlab基础第2讲，关于matlab的知识(Matlab automatic control theory based Fudan University Lecture 2, on the knowledge of matlab)