compress_sensing_without_frame

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. )

该函数用来计算时间序列的最大Lyapunov 指数 Wolf 方法 m: 嵌入维数 tau:时间延迟 data:时间序列 N:时间序列长度 P:时间序列的平均周期,选择演化相点距当前点的位置差，即若当前相点为I，则演化相点只能在|I－J|>P的相点中搜寻 lambda_1:返回最大lyapunov指数值 (This function is used to calculate the time series of the largest Lyapunov exponent Wolf method m: embedding dimension tau: time delay data: time series N: Time sequence length P: the average period of time series, the evolution of the current location of the point relative pitch poor, that is, if the current phase point is I, the evolution of the phase point only | I-J |> phase point P in search lambda_1: returns the maximum index value lyapunov)

找出一个4行5列的二维数组的”鞍点”，即该位置上的元素在该行上最大，在该列上最小。也有可能没有鞍点。(identify a line 4 5 2-D array of "saddle point," that is the position of the element in the largest firms, out of the smallest. They may not saddle point.)

在电话拨号时 ，每个按键都使用双频信号进行区分的，本MATLAB程序就是用来模拟发送号码的发送和接受过程，并发出按键音。(In a telephone dial-up, each button using the dual-band signal distinction, the MATLAB program is used to simulate the sending number to send and accept the process and issue the key tone.)

identification for strong apperiodical processes.

标准大气模型，使用，matlab编写，可用于航空航天等相关领域(The model of the standard atmosphere)

This file is part of UBIFS.

说明：  直线电机速度PID电流PID控制 SVPWM PMLSM(Speed PID current PID control of linear motor)

该书为冈萨雷斯的数字图像处理及MATLAB实现，该书介绍了数字图像处理技术和MATLAB图像处理技巧(Gonzalez book digital image processing and MATLAB implementation, the book introduces digital image processing technology and MATLAB image processing techniques)

code to detect the skin color in an well illuminated image