raytrace

通信实验指导：哈夫曼编码的matlab实现，有源码和详细文档(Communication experiment guide: Huffman coding matlab to achieve, there are source code and detailed documentation)

codificacion huffman

此文是数学建模竞赛论文写作和软件介绍，内含有较多数学建模的算法和实例，方便大家学习(Mathematical Contest in Modeling essay writing and software introduced)

毕业设计源码！关于语音情感识别的！希望对大家有用！(Graduation source! Emotion recognition of speech! Hope to be useful!)

pid tuning by using PSO algorithm

上传的代码是 matlab宝典的代码 相信对于开发的人员是有帮助的(From the code book is the matlab code and I believe that the development of the staff was helpful)

说明：  提出了一种改进高阶Butterworth低通滤波器性能的设计方法。首先对高阶Butterworth低通滤波器的极点 进行重新分布，得出改进型Butterworth低通滤波器。性可以由其在基波电压初相位为零时的特性所唯一确定(Periodic voltage and current waveforms on the start time of its corresponding harmonic component of the relationship between the initial phase of research, pointed out that the characteristics of harmonic sources can be its initial phase in the fundamental zero-voltage characteristics of the CD a definite)

Image Compression A collection of simple routines for image compression using different techniques. BTCODE: Image compression Using Block Truncation Coding. PYRAMID: Image compression based on Gaussian Pyramids. DCTCOMPR: Image compression based on Discrete Cosine Transform. (Image Compression A collection of simple r outines for image compression using different techniques. BTCODE : Image compression Using Block Truncation Codi Vi. PYRAMID : Image compression based on Gaussian Pyramids. DCTCOMPR : Image compression based on Discrete Cosine trapidil nsform.)

stegnography data hiding in image.

In this exercise we will compute the least squares parameters fit of “pre-whitening” FILTER that is linear in the parameters.