interesting-applets(matlab)

用MATLAB进行FFT频谱分析 用MATLAB进行FFT频谱分析(matlab fft matlab fft matlab fft)

一种音频水印攻击方案，加入噪声并进行比较(An audio watermarking attack scenarios, adding noise and compare)

说明：  利用IIR滤波器设计一个低通滤波器，能够分析到电力系统中的三次谐波，要求满足如下指标：截止频率150HZ，阻带衰减≥30db(IIR filter design using a low-pass filter, to analyze the power system in the third harmonic, the requirements to meet the following indicators: cut-off frequency 150HZ, stopband attenuation ≥ 30db)

说明：  function for texture classsification

用matlab仿真2PSK、4FSK的波形(Using matlab to simulate the waveform of 2 PSK, 4 FSK)

通过实现文件ft1调用函数fseries，完成傅里叶级数实现.(realization of fourier series by implemention of the file ft1,doing the function fseries)

信号与系统时频分析及Matlab的应用，设计z变换、fft变换、拉普拉斯变换等(Time-frequency signal and system analysis and Matlab applications, design of the z-transform, fft transform, Laplace transform)

粒子算法，特征提取，比较详细的文献解释。(Particle algorithm, feature extraction, and a more detailed interpretation of the literature.)

北大医学部（医学统计学）的课件，里面重点讲解实验数据统计，方差分析，相关与偏相关等方法，这是不确定性实验数据统计必修方法，使用matlab的同学有福了。(PUHSC (Medical Statistics) courseware, which highlight the experimental statistics, analysis of variance, correlation and partial correlation method, which is the uncertainty of experimental data statistics compulsory methods, the use of matlab student blessed.)

This is upper successful cancellation for mobile communication