signals-and-systems

说明：  zigbee三边测量法，简单实用，适合初学者(zigbee trilateration, simple and practical, suitable for beginners)

Differential equations are mathematically studied from several different perspectives, mostly concerned with their solutions —the set of functions that satisfy the equation.

Synthetic a time history to a target spectrum

pwm波形输出，用来产生20ms周期的pwm波，用来驱动舵机。(the output of pwm, it is helpful to the user.)

阵列处理第三章源代码 matlab code(array processing matlab code)

四面体三维重建-----matlab 三维模型重建(Tetrahedral three-dimensional reconstruction)

Prony算法，用于信号提取辨识，研究低频振荡(prony,low frequency oscillation)

求出多个信号的FFT频率并显示谱图，同时求出多个信号的功率谱并显示谱图(The FFT frequency of multiple signal and display the spectrum diagram, at the same time, the power spectrum of multiple signal and display spectrogram )

胡不变矩相关代码，有所需图片和源程序m文件(Invariant moments)

复杂网络中社区划分算法中利用边介数的经典GN算法(Complex network community partitioning algorithm using edge betweenness classic GN algorithm)