chazhinihe

算法交易案例，包含止盈止损等，代码比较简单。(Algorithmic trading case)

程序仿真了瑞利信道，分析和大量实测表明，多径效应使接收信号包络变化接近瑞利分布。在典型移动通信中，衰落深度达30dB左右，衰落速率约30~40次/秒。(Rayleigh channel simulation procedures, analysis and extensive test shows that the received signal multipath effect changes in the envelope close to the Rayleigh distribution. In a typical mobile communication, fading depth of about 30dB, the decline rate of about 30 to 40 times/sec.)

异步电机间接矢量控制Simulink仿真模型，带有转速外环和Iq、Id两个内环，转速和负载指令阶跃变化，3/2变换为恒幅值变换，不包含弱磁控制，磁链指令为恒值。PWM调制算法采用空间矢量调制（SVPWM）。 (Indirect induction motor vector control Simulink simulation model with speed outer and Iq, Id two inner ring speed and load instructions step change, 3/2 is converted into constant amplitude transformation, is not included weakening control, flux instruction for the constant value. PWM modulation algorithm using space vector modulation (SVPWM).)

ASK,FSK,PSK信号调制及用FFT法进行频率估计(ASK signal modulation and the FFT algorithm with frequency estimation)

一般的esprit算法计算复杂度高，在计算子空间是算法比较烦，改一些矩阵算法可以减少其复杂度。(Esprit general algorithm of high computational complexity in the calculation of subspace algorithms trouble is, some matrix algorithm can be changed to reduce its complexity.)

自己编写的用谱相减，最小均方和维纳滤波实现语音增强的matlab文件(themselves with the preparation of spectral subtraction, the minimum mean square Wiener filtering and enhanced voice document Matlab)

有限单元实体及结构分析的matlab编程计算(MATLAB Codes for Finite Element Analysis Solids and Structures )

实现数据的存储，可以利用一个矩阵的一列得到另一个矩阵的一列，非常方便(Data storage, you can use a matrix of a matrix by another one, very convenient)

说明：  PSO算法处理火焰模型，粒子群算法，作业用(PSO algorithm processing flame model)

利用c语言编写的，在matlab环境下运行mex函数可以生成动态的dll库，可以用来计算图像区域的梯度向量直方图特征。(Use c language, in the matlab environment running mex function can generate dynamic dll library that can be used to calculate the gradient vector histogram image area.)