dd_tools

读取图像 显示图像 将图像矩阵类型转换为double 傅里叶变换 离散余弦变换(Read image shows the image matrix type image is converted to double Fourier transform discrete cosine transform)

说明：  matlab下几个三角函数实现的对比 。(matlab implementation of the next several trigonometric functions compared)

This function obtains the pi model of a transmission line the ABCD constants of the line.

经典书籍MIMO Signals And Systems的源代码(Classic books MIMO Signals And Systems source code)

说明：  依据图论原理，使用matlab编写，用以进行图论相关的研究，可以用来理解Dijstra算法，并在此基础上做相关改进(According to the principle of graph theory, using MATLAB to write, for graph theory related research, can be used to understand Dijstra algorithm, and on this basis to make related improvements)

说明：  自己编写的感知器算法的程序，用于模式识别的，仅供参考。(The Perceptron algorithm have written procedures for reference purposes only.)

说明：  这是一个matlab程序，其目的是实现k均值算法， 可以运行，只是稍有错误，希望大家谅解 (This is a matlab program, which aims to achieve k means algorithm, you can run, just a little mistake, I hope you understand)

用matlab绘制的车辆制动曲线，以起亚K9为参考模型，用的时候改下参数即可(Matlab mapping the vehicle braking curve, the Kia K9 as a reference model, when used to change the parameters can be)

Hidden Markov models

The model used for creating the reference voltage is shown in Fig. 4. First, photovoltaic output current (Ipv) and output voltage (Vpv) are passed through a first order low pass filter with a magnitude of G = 1 and a time constant of T = 0.01 seconds in order to filter out the high frequency components or harmonics from these signals as shown in Fig. 5 and Fig. 6. The filtered current and voltage signals (Ipv_F and Vpv_F) are then fed into the MPPT control block that uses the Incremental Conductance Tracking Algorithm. An algorithm that is based on the fact the slope of the PV array power curve shown in Fig. 7 is zero at the Maximum Power Point (MPP), positive on the left of the MPP, and negative on the right. The MPP can thus be tracked by comparing the instantaneous conductance (I/V) to the incremental conductance (∆ I/∆ V) [11] as in (1):