PL

重构Lorenz 时间序列的相空间图，并作分析(Lorenz time series reconstructed phase space, and for analysis)

this source describes a demo that writes down in music score from wav file.

DTMF goertzel function, it is really helpful for other beginners who want to do the DTMF

最优化方法实验设计，研究Broyden族拟Newton算法中fai(k)取值的优化问题,即对于不同的目标函数，考虑取何值时算法是最优的，重点考察的区间[-2 2]范围内的变化情况，算法的优劣程度由CPU运行时间决定。(Optimization method, design of experiments to study the proposed Newton algorithm Broyden family fai (k) values of the optimization problem, namely, for different objective functions, given the value of taking what algorithm is optimal, focusing on inspection interval [-22] changes within the scope of the algorithm' s advantages and disadvantages of the decision level from the CPU running time.)

说明：  四阶龙格—库塔算法。自己在课程设计中就是用的这个算法。对于初学者有一定的帮助(Fourth order Runge- Kutta method. Own course design is to use this algorithm. Be helpful for beginners)

说明：  matlab标准hough变换圆检测代码，已经经过测试，可用于图像识别(Matlab standard Hough transform circle detection code has been tested, can be used for image recognition)

blcoh equation represetation of MRI phnonmenan

this is a matlab for the PSNR. In this .m I have been using the PSNR to evluate the quality of the audio quality. Its a very useful way to do it.

MATLAB实现连续信号采样、频谱分析和采样信号恢复的方法。计算在临界采样、过采样、欠采样三种不同条件下恢复信号的误差，并由此总结采样频率对信号恢复产生误差的影响，从而验证时域采样定理。(MATLAB continuous signal sampling, spectral analysis and sampling signal recovery method. Calculated in a critical sampling, the oversampling signal error recovery due to the sampling of the three different conditions, and thereby generate error summarizes the sampling frequency for signal recovery, in order to verify the time domain sampling theorem.)

image cropping in matlab a digital image processing project with .m files and presentation