toolbox

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

说明：  模拟退火的实现代码，给出具体的案例分析。可以按照不同需要对程序体进行改进(The realization of simulated annealing code, gives specific case studies. According to the different needs of the program to improve body)

这个是一个SVM分类器，可以再行人检测时用来分类训练样本，再MATLAB中直接调用(This is an SVM classifier, when pedestrian detection can be used to classify the training sample, and then directly call MATLAB)

作者为Chambolle的论文An Algorithm for Total Variation Minimization and Applications的源代码及论文(The author is Chambolle papers An Algorithm for Total Variation Minimization and Applications of the source code and papers)

A comprehensive OFDM turorial

电力电子技术 课程讲解 晶闸管的介绍 过流保护 过压保护等等(Power Electronics Technology Course introduction explaining current protection thyristor overvoltage protection, etc.)

金融工程嗯, 从matlab论坛上下载的，我觉得很有用，所以传上来分享(Financial Engineering derivatives from famous University and is really useful in derivatives. I love it very much and I think is really helpful to your guys)

利用函数建立非负矩形脉冲，然后利用频谱分析函数对该矩形脉冲进行频谱分析，并进行频率移位修正（利用FFTSHIFT），观察该脉冲频谱。(Use function to create a non-negative rectangular pulse, and then use the spectral analysis of the rectangular pulse function spectral analysis, and the frequency shift correction (using FFTSHIFT), observed that the pulse spectrum.)

计算积分函数的数值方法，具有简单快速准确的特点(dianstance protection)

说明：  MUSIC算法；是平面阵的。很好用。大家交流学习(MUSIC algorithm is planar array. Good use. To facilitate the exchange of learning)