matlab

用MATLAB画隐函数曲线与曲面，及相应的网格(Implicit function using MATLAB draw curves and surfaces, and the corresponding grid)

利用hough变换检测图像中的直线，得到检测直线的参数与首位端点，并在原图中标出所检测到得直线。(Detection using hough transform image of the straight line parameters to be detected with the first endpoint, and the Original bid to get straight out of the test.)

DECOMPOSITION OF ECG SIGNAL TO ITS COEFFICIENTS

分析了该信号的时域、频域、倒谱，循环谱等,包含CV、CA、Single、当前、恒转弯速率、转弯模型，考虑雨衰 阴影 和多径影响，能量熵的计算，用于特征降维，特征融合，相关分析等,是国外的成品模型。( Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. It contains CV, CA, Single, current, constant turn rate, turning model, Consider shadow rain attenuation and multipath effects Energy entropy calculation, For feature reduction, feature fusion, correlation analysis, Foreign model is finished.)

说明：  判决导向的载波恢复算法，在PAM调制方式下实现。(Decision directed carrier recovery algorithms to achieve in the PAM modulation.)

说明：  主要指令：butter（产生巴特沃斯滤波器）；freqz（绘制幅频、相频曲线）；zplane（绘制零、极点图）；ss2zp（状态方程变零、极点）；zp2tf（零、极点变分式多项式）。(Main instruction: butter (produced bart wo filter) Freqz (draw amplitude frequency, phase frequency curve) Zplane (draw zero, poles chart) Ss2zp (state equation is zero, poles) Zp2tf (zero, pole change fraction polynomial). )

该程序仿真了基于三相逆变器的空间矢量PWM。可以在示波器上看到线电压，相电压和滤波电压。调制指数、DC电压和频率参数可以修改。(The program simulates the vector PWM space-based three-phase inverter. You can see the line voltage, phase voltage and filtering the voltage on an oscilloscope. Modulation index, DC voltage and frequency parameters can be modified.)

Multiple DG Placement optimization in 33-bus and 69-bus distribution power systems in 2 different bus using Imperialistic Competition algorithm

文中介绍了传统的PID控制原理，PID分为位置式和增量式，计算机控制是数字PID控制。一些 改进的PID控制算法是针对实际应用中的不足提出的，如积分分离式PID控制算法，抗 积分饱和算法，变速积分算法等，实际应用中，控制又分为简单PID控制和串级PID控 制，对一些典型的控制算法，选用典型控制对象用MArLAB软件进行了对应仿真。对仿 真结果进行了对比分析，说明了改进算法的作用。(This paper introduces the principle of the traditional PID control, PID into position and incremental, computer-controlled digital PID control. Some improvements in the PID control algorithm is less than the practical application of the proposed, such as discrete integral PID control algorithm, anti-integral saturation algorithm, changing integration algorithm and so on, practical application, the control is divided into a simple cascade PID control and PID control , for some typical control algorithm, selection of a typical control object MArLAB software with the corresponding simulation. The simulation results of comparative analysis carried out to illustrate the role of the improved algorithm.)

雷达信号处理中重频分选阶段对于PRI变换和CDIF两种算法的仿真及各种改进尝试(Repetition frequency radar signal processing the PRI transform and CDIF algorithm simulation and various improvements try sorting stage)