three_level_NPC

基于最新一篇关于圆环阵超指向性论文做出的仿真，已经有了论文的介绍，程序中仅作关于二维波束形成的简单仿真演示。(Make simulation based on the latest article on the ring array of ultra-directional papers, has been the introduction of the paper, the program only for simple two-dimensional beam simulation demo.)

基于MATLAB的数字音频水印技术程序，一种数字音频水印(MATLAB-based digital audio watermarking technology program)

3-D FDTD code of patch antenna in free space with Mur s boundary condition

虚拟激励法的实现，4自由度的随机振动问题，包含详细说明，对出学者有很好启示作用！(The realization of the virtual excitation method, 4 degrees of freedom random vibration problems, including details of the scholars have a good inspiration!)

in this program I have simulated SPP method for iris data.

It is about matlab which depicts brain image segmentation

matlab实现信号去噪并对频谱分析，excel文件可用随机数据。(Using matlab to realize signal denoising and frequency spectrum analysis, excel file can use random data.)

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：  CC算法中包括求解海维赛，相空间重构，时间序列分解，计算关联积分等程序。(Included in the CC algorithm for solving Hedwig race, phase space reconstruction, time series decomposition and calculate the associated integral program.)

Matlab allows the use of MEX files –MEX files are pre-compiled files that are called from Matlab –Can be compiled from Matlab .m files –Can also be compiled from external C++ code. • This will be our focus