DVBS2Constellation

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. )

归一化LMS算法即NLMS算法源程序，自适应信号处理变步长经典算法(Normalized LMS algorithm for the NLMS algorithm source code, adaptive signal processing algorithm for variable step classical)

图像特征提取以及匹配，sift代码。可用于图片检索中，同比SURF，其算法可以较好的识别图像中文字(Image feature extraction and matching, sift the code. Can be used for image retrieval, up by SURF, the algorithm can better identify the image text)

说明：  matlab的一些运动图像检测差分算法 希望对大家有帮助(Some moving images matlab differential detection algorithm we want to help)

this is a kmeans clustering code writen in matlab

UKF的交流异步电力测功机软测量模型UKF-based AC induction electric dynamometer soft sensor model(UKF-based AC induction electric dynamometer soft sensor model)

Calculate SNDR of ADCs

通过锁相环的方法实现2fsk的传输系统的设计，，这是仿真图。。仅供参考(Achieved through the PLL 2fsk designed transmission system, which is the simulation of Fig. . For reference only.)

直线阵采用切比学夫加权控制主旁瓣比，做视觉测量的上位机代码,小波包分析提取振动信号中的特征频率。( Linear array using cut than learning laid upon the right control of the main sidelobe ratio, Do Vision Measurement PC code, Wavelet packet analysis to extract vibration signal characteristic frequency.)

Using Matlab, 很好很基础的书(Using Matlab, good and basic introduction)