hw3

detection license plate using haough transform

图像处理中常用的算法，均方根误差和峰值信噪比的matlab代码(Image processing algorithms commonly used, the root mean square error and peak signal to noise ratio of the matlab code)

说明：  最经典的图像置乱，用于图像置乱，图像加密。。。。。。。。。。。。。。。。。。。。。。。。。(arnold permutation for image encryption)

说明：  基于小波包的带通滤波器设计程序。给出了小波变换的快速算法和重构算法，讨论了应用小波变换进行信号带通滤波的方法，并通过正交小波包对信号的分解，把频率成分复杂的信号分解到各个频带上，根据需要提取指定频率的信号，然后用小波包重构算法对信号进行重构，实现对信号的提取。(Based on wavelet packet band-pass filter design program. Given the fast algorithm of wavelet transform and reconstruction algorithms are discussed using wavelet transform signal band-pass filtering method, and through the wavelet packet to signals can be decomposed, 把 frequency components of complex signal is decomposed into various frequency bands 上, according to need to extract the specified frequency signal, and then reconstructs the signal reconstruction algorithm to achieve the extraction of the signal.)

灰色理論下之最基本操作元，灰生成之matlab源碼，可很快計算出數據各階之生成結果(gray under the basic theory of operation, the ash generated Matlab source, can quickly calculate the data-generating results)

该程序模块实现了LTE-A（多天线环境下）预编码&检测(this module realise the LTE-A precoding and detecting)

对信号进行希尔伯特黄变换，随后求边际谱，帮助理解希尔伯特黄变换(The signal Hilbert Huang Transform, and then seek marginal spectrum)

飞机姿态角控制时，基于四元数和欧拉角的位置坐标转换关系，欧拉角控制法同四元数控制方法间的相互转换。(When the aircraft attitude angle control, based on the quaternion and Euler angle of the coordinates of the conversion relationship between the Euler angle control method and quaternion control method conversion between.)

optisystem 色散补偿的例子，已经验证过，非常好用。(Optisystem dispersion compensation for example, has been verified, very good use.)

matlab实现的点云精简算法，亲测可用，效果不错(cloud jingjian)