Simulated-annealing-algorithm

用于雷达阵列信号的处理，比较经典的music算法，对大家会有帮助的(Used in radar array signal processing, algorithms with classical music, will be helpful to everyone)

计算太阳黑子的活动周期，分别利用周期图法，Lenvinson-Durbin法和Burg法求得其功率谱，并画出曲线，观察得到活动周期(Calculation of sunspot activity cycle, namely the use of periodogram, Lenvinson-Durbin and Burg obtained the power spectrum, and draw curve, observation cycle)

说明：  利用FFT分析方波信号的频谱，讨论采样点数、采样频率对谱分辨率的影响。对数据叠加白噪声后再次分析实验结果。(Square-wave signal using FFT spectrum analysis to discuss the sampling points, the sampling frequency of the impact of spectral resolution. White noise superimposed on the data after analysis of experimental results.)

仿真锁相环系统，可以仿真锁定时间。不同的环路带宽对系统的非理想特性！(PLL simulation system that can lock simulation time. Different loop bandwidth of the system of non-ideal characteristics!)

feature description using sift

这是一个matlab人脸识别程序代码，有GUI界面(This is a face recognition matlab code, there is a GUI interface)

可以对任意实现频谱细化，函数的参数见函数自身说明(Spectrum can be achieved for any refinement, the function of the parameters see the description of the function itself)

说明：  噪声调频信号的产生：1、产生高斯噪声电压 2。用6极点椭圆滤波器形成噪声带宽 3。将滤波器输出送到一压控震荡器，输出即为调频噪声干扰信号(Noise FM signal generation: 1, resulting in Gaussian noise voltages 2. 6-pole elliptic filter noise bandwidth of the formation of 3. The filter output to a voltage controlled oscillator output signal noise shall be FM)

RUNGE法求解阻尼振动问题，给出物体的运动方程及驱动力，求出物体的振动曲线（附报告）(Solving RUNGE vibration damping, given the equation of motion of objects and driving force, find the object of the vibration curve (with report）)

classification bayse