ssc_pneumatic_actuator_MODY

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.)

abaqus在岩土工程中的应用-费康-书籍(Application of ABAQUS in geotechnical engineering)

VC语言编写的动态内存，有所不足请P我-VC language of dynamic memory, has been less than requested P I ..............

能够画出一束玫瑰花，用Matlab绘出一支玫瑰送给女朋友(Can draw a bunch of roses.Draw a rose to a girlfriend with Matlab)

ActionScript 值得推荐的actionscript入门教程(ActionScript cook book)

一个Delphi会员管理系统，具体来说是Delphi会员消费管理，记录各个会员的消费情况，实现会员资料的录入、修改、查询，数据库基于DB2，分为多管理员帐户登录，登录后有不同的权限。

用义隆单片机78P156写的倒车雷达程序,(The reversing radar program written with Elan microcontroller)

Gaussian Mixture Model Algorithm For Object detection

输入年月日得出星期，按照代码里面的提示输入就可以得到星期几，输入的年份是有一个范围的，输入没有检错处理的！！！(Enter the date come weeks)

基于LabView的简单计算器设计，实现四则运算。(simple Calculation)