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电路四倍频算法，具有去毛刺，整形功能，方向及计数(Circuit quadruple frequency algorithm, with deburring, shaping function)

我有忘了这是什么资源了,通过吧!我真的很需要资源!-I have forgotten what it is a resource that! I really need resources!

说明：  Buffer Ring Test application

good program ，I like very much-good program, I like very much

matlab仿真出系数，并且在与matlab中提供的代码相比较(Matlab emulate the coefficients and compare them with the code provided in MATLAB)

cohesive的umat程序与文章A damage model for the simulation of delamination in advanced composites under variablemode loading有关(Cohesive UMAT program)

地震波逆时偏移程序，可以实现地震波的反演(Seismic wave inverse time migration program can realize the inversion of seismic wave)

说明：  编程计算 线阵组成边射、端射和增强方向性端射阵满足的条件及方向图函数的增益、副瓣电平、半功率波束宽度、零波瓣宽度。(The direction pattern of the side array)

使用R语言进行数据分析的源码，包含数据集(Using R language for data analysis of the source code, including data sets)

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.)