lagrange

实例：指定坐标轴范围 实例：绘制不同函数曲线的用户界面 上传了这些实例,大家参考!(Example: the scope of the designated axes Example: Draw different curves of the user interface From these examples, refer to everyone!)

粒子群算法优化函数求解极值的问题。通过该程序我们可以看到粒子群优化算法的优化过程。(Particle Swarm Optimization for Solving Extremum problems. Through this program we can see that PSO optimization process.)

一个2D的FDTD模拟算例，包括完整的定义、初始化、更新方程、显示和FDTD迭代文件。该算例适合初学FDTD的人员掌握完整流程。(A 2D FDTD simulation examples, including a complete definition, initialization, update equations, display and FDTD iteration file. This example is suitable for beginners FDTD personnel to master the complete process.)

单相半波整流电路谐波分析，可以计算谐波的幅值，谐波含量并画图。(Single-phase half-wave rectifier circuit harmonic analysis, we can calculate the magnitude of the harmonics, harmonic content and Paint.)

认知无线电中基于遗传算法的频谱分配的时间开销仿真实验(Cognitive radio spectrum allocation time overhead simulation-based Genetic Algorithm)

稀疏表示理论及其在信号处理和图像处理中的应用(Sparse representation theory and its application in signal processing and image processing)

Database management systems

This paper presents a new algorithm to extract the fetal ECG from an ECG recorded on the mother’s abdomen. The algorithm consists of two steps: first, ECG of fetus is extracted from the original signal using a two-level wavelet transform. We use Daubechie wavelet transform, which is similar in shape to heart beat wave. The resulted signal is then low-pass filtered using the Savitzky-Golay smoothing filter to attenuate the effect of noise. The filtered signal is considered as the fetal ECG. The algorithm was applied on both synthetic and real ECG signals. The results in this paper show that the proposed algorithm has promising performance.

说明：  在很多图像处理的过程中，需要判别一个图像的清晰度，和图像分割结果的优劣，于是就引出了信息熵的概念，绝大多数时候，它都被用来作为评价图像的一个量化标准。(In many image processing processes, it is necessary to distinguish the clarity of an image and the result of image segmentation, so the concept of information entropy is introduced. Most of the time, it is used as a quantitative standard to evaluate the image.)

一个用matlab编写的时钟程序，包含了数字钟和传统显示的圆形中，背景是可爱图片。运行时和电脑同步。(a program on a clock which contains a traditional clock and a numerical one，with a lovely background picture。when the program runs ，the clock will keep the pace with the correct time of the computer。)