PhysioNet_ECG_Exporter

灰色预测，简单的编程，大家多提意见(Gray forecast, a simple programming, we do so!)

mfile about spot price in matlab

通过matlab实现简单的音乐混响，并与原波形比较(a simple effect on music through matlab)

数据互联算法。绘制出了目标真是轨迹、测量轨迹、PDAF估计轨迹和NNSF估计轨迹，并进行了对比分析。(Data Association Algorithm. Drawn out of the goal really track the trajectory measurements, PDAF estimated trajectory and NNSF estimated trajectory, and a comparative analysis.)

说明：  最优化算法，使用信赖域法（LM）求解无约束问题。可以实现画出三维图像，通过修改初始点，得到迭代次数和函数值(Optimization algorithm, using LM method to solve unconstrained problems. Three dimensional images can be drawn, and the number of iterations and function values can be obtained by modifying the initial points.)

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. )

《visual c++matlab图像处理与识别实用案例精选》源码(" Visual c++ matlab image processing and recognition of practical cases selected" source)

运用SVD分解分析勘探地震信号，主要是对信噪比提升的研究(Exploration and seismic signal processing in learning friends and the help )

matlab for images processing

说明：  图像分析处理,一种新的算法来实现特征提取(Image analysis and processingA new algorithm is proposed to realize feature extraction )