sum_difference

一个Delphi货运公司业务管理系统，里面包含了一个打印控件，数据库采用Access，功能方面可以完成发货、收货、海运信息、客户信息、陆运信息、业务员信息以及月报、年报等功能，可作为一个完整的货运管理系统来用。

ADI公司ADF4360-9 PLL+VCO频综芯片调试笔记(ADI ADF4360-9 PLL+VCO frequency synthesizer chip debugging notes)

遗传算法GA，使用matlab进行编程，基准测试函数(GENERATION ALGORITHM)

针对基于双曲线定位的DV-Hop算法中误差项的异方差性引起的定位误差大的问题，提出了一种基于加权双曲线定位的DV-Hop改进算法。算法分析了基于双曲线定位的DV-Hop算法模型中误差项的异方差性，用加权最小二乘法对异方差性进行纠正，对加权最小二乘法中的权值矩阵进行了推导并得到与跳数相关的最佳权值矩阵，使得误差项满足同方差性，所得估计值更加接近最佳线性无偏估计。仿真实验结果表明，所提算法在节点定位精度上较现有的基于双曲线定位的DV-Hop算法都有一定提高。(Aiming at the problem that the heteroscedasticity of observation errors leads to low locating accuracy in DV-Hop algorithm based on hyperbolic positioning, this paper proposes an improved DV-Hop algorithm which based on weighted hyperbolic positioning. The algorithm analysis the heteroscedasticity of the error term in the model and takes advantage of weighted least square method which corrects heteroscedasticity straightforwardly. Then, the weight matrix related to least hops between nodes is deduced, the estimators thus obtained are more close to the best linear unbiased estimator. The simulation results show that the location performance of the improved algorithm is better than that of the exsiting DV-Hop algorithm which based on hyperbolic positioning.)

说明：  PWM整流器的PLECS，可以正常运行，直流侧电压给定800V(The PLECS of PWM rectifier can operate normally)

wireless charging calculation

八层电梯控制器设计，主要特色是对外部电梯请求命令的异步采集，同步发出，为一组三个电梯的控制器-it is a elevator controller.

说明：  灰狼算法与支持向量机的结合，寻求到最佳的c、g，提高系统的预测的精确度(The combination of Gray Wolf algorithm and support vector machine optimizes C, G)

binomial convergence

C# 制作实现一个椭圆形异形窗口的方法+代码演示，创建椭圆形窗体原理是：创建一个路径对象，将椭圆添加到路径对象中，使用椭圆构造一个区域，并将此区域作为程序窗体区域。掌握一种技巧很重要，授人于鱼，不如授人于渔，有了方法，制作其它的非标准窗体那就容易上手了。