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ContactCalculate
迹线法求轮轨接触关系，并用于计算轮轨力以及车辆系统动力学分析(Trace method for wheel/rail contact relation)
- 2018-04-25 20:49:12下载
- 积分：1
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测井曲线数据处理源代码
测井曲线数据处理源代码-log data processing source code
- 2022-02-14 00:34:11下载
- 积分：1
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PHPSHE B2C商城系统 v1.3
PHPSHE B2C商城系统将商品管理、品牌管理、在线购物、订单管理、支付管理、文章管理、会员管理、客户咨询评价、数据统计等功能相结合，为用户提供了一个低成本、高效率的网上商城建设方案。
- 2022-07-26 23:42:36下载
- 积分：1
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永磁直驱风机
说明： 永磁直驱风力发电机组的模型
PSCAD建模
能够运行(Model of permanent magnet direct drive wind turbine)
- 2020-10-23 22:07:22下载
- 积分：1
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51单片机的下载烧写软件,能下载支持在线仿真的监控程序,内有使用方法!...
51单片机的下载烧写软件,能下载支持在线仿真的监控程序,内有使用方法!-51 SCM burning downloaded software can download online simulation procedures of control methods are used within!
- 2022-03-07 21:48:58下载
- 积分：1
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produce
access vba 公司自己用的生产管理(access vba)
- 2012-01-05 09:37:18下载
- 积分：1
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三相
实现三相逆变器的闭环控制，基于电感电流和电容电流。实现逆变器的双闭环控制，动态性能良好，通过坐标转化为DQ坐标轴使得追踪精度良好，这里只提供了主函数部分，包括坐标变换，PI计算，相关的外设初始化，需要自己配置。(Realizes closed-loop control of three-phase inverters based on inductor current and capacitor current. Inverter dual-loop control, dynamic performance is good, through the coordinates of the DQ axis to make the tracking accuracy is good, here only the main part of the function, including the coordinate transformation, PI calculations, related peripheral initialization, you need to configure.)
- 2021-03-15 10:49:22下载
- 积分：1
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DVHop
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.)
- 2020-09-20 21:57:53下载
- 积分：1
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DBN
说明： 有数据，能运行，亲测可以运行，下面是凑字数，用过都说好(Able to run DBN program)
- 2019-03-13 15:34:33下载
- 积分：1
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garch预测波动率
说明： 利用R语言，根据GARCH模型进行波动率的预测。(GARCH model is used to forecast volatility.)
- 2020-02-29 02:09:34下载
- 积分：1
