gpstoolbox_v4

说明：  bp神经网络，实现bp神经网络的分类，用matlab语言编写(bp neural network, the realization of bp neural network classification, using matlab language)

蚁群算法连续函数优化问题。包含FIT测试函数，主函数。(Ant colony optimization algorithm for continuous function. Contains FIT test function, the main function.)

简单的阐述方式，可使读者尽快掌握要领。主要介绍了一些编程语句的使用方法。(A simple exposition of way, will enable readers to quickly grasp the essentials.It introduces a number of programming statements used.)

说明：  关于半色调编码计算全息图的信息隐藏Matlab程序的说明： 算法实现主程序为CGHwatermark； 位相恢复函数为phaseSL； 用计算全息记录已知振幅和位相的复波前函数为Hologen； 半色调编码函数为AMhalftone； 嵌入信息的提取直接调用Matlab自带的FFT2函数； 主程序的函数调用关系如下 读入宿主信息和水印信息-----------phaseSL--->Hologen--->AMhalftone(完成嵌入)--->FFT2（提取水印信息） 主程序结果保存于holo&mark文件夹 对算法鲁棒性测试的程序： 1. 对于剪切操作 Cliptest 结果存放于cliptest文件夹 2. 对于缩放操作 zoomtest 结果存放于zoomtest文件夹 3. 对于旋转操作 rotatetest 结果存放于rotate文件夹 4. 对于滤波操作 filtertest 结果存放于filtertest文件夹 5. 测试算法的时间效率 timetest 6. 分析嵌入信息后图像质量与参数alpha，tao的关系 msetest(err)

ECG genarating program

HDI Guide 310111 usefull doc

matlab实现时间系统转换 包括 gps时 儒略日 简化儒略日 格里历的转换(matlab time system conversion including GPS Julian Day simplifies the Julian date of the Gregorian calendar conversion)

Chroma Feature Analysis and Synthesis Chroma features are an interesting and powerful representation for music audio in which the entire spectrum is projected onto 12 bins representing the 12 distinct semitones (or chroma) of the musical octave. Since, in music, notes exactly one octave apart are perceived as particularly similar, knowing the distribution of chroma even without the absolute frequency (i.e. the original octave) can give useful musical information about the audio and may even reveal perceived musical similarity that is not apparent in the original spectra.

TEACHING-LEARNING-BASED OPTIMIZATION ALGORITHM FOR SHAPE AND SIZE OPTIMIZATION OF TRUSS STRUCTURES WITH DYNAMIC FREQUENCY CONSTRAINTS*

关于MATLAB生成正弦波的程序这个是最原始的程序。。。(About MATLAB to generate the sine wave procedures are the most primitive procedures. . .)