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H236
H.263 标准结构图，对学习了解H263有直观的学习作用(H.263 standard structure map, learning to understand H263 has an intuitive learning effect)
- 2018-03-18 18:05:11下载
- 积分：1
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针对矿浆管道工况调整给泄漏检测带来的干扰
说明： 针对矿浆管道工况调整给泄漏检测带来的干扰，准确提取泄漏信号的特征量是降低泄漏误报、漏报的关键。为此，提出了一种基于经验模态分解（EMD）、Hilbert能量谱与变量预测模型（VPMCD）相结合的泄漏检测方法。该方法首先将压力信号分解成若干个固有模态函数（IMF）之和，然后将IMF分量进行Hilbert变换得到局部Hilbert能量谱，依据能量分布的标准差选择最能准确反映矿浆管道运行工况的局部能量谱作为特征值向量，最后通过VPMCD分类器建立泄漏识别模型。将该方法应用于泄漏检测中，实验结果表明，矿浆管道在正常运行、泄漏和工况调整状态下，识别率达到95%，并综合分析流量信号，提高了泄漏检测精度。(According to the interference to leak detection of mineral slurry pipeline caused by work condition adjustment,effectively extracting the characteristics of leak signal is the key to reduce the leakage of the false negatives and false positives.In this paper,a leak detection method based on EMD and VPMCD is proposed. In this method,the pressure signals are decomposed into several IMF components, and then take local Hilbert energy spectrum which most accurately reflect the pipeline operation conditions as feature values, Finally the leak identification model is established by VPMCD classifier.When the method is applied to the leak detection,the experimental results show that under the conditions of normal operation,leakage and work condition adjustment, the recognition rate of the mineral slurry pipeline reaches 95%,and by comprehensively analyzing the flow signals, it also improves the accuracy of leak detection.)
- 2020-12-03 10:09:25下载
- 积分：1
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yidong
移动平均，基于移动平均线的自动交易程序，(move average ,the new .)
- 2020-06-18 01:40:01下载
- 积分：1
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stiffness
说明： 计算齿轮时变啮合刚度的函数，里面包括了斜齿轮的，可以使用(Function for calculating time-varying meshing stiffness of gears)
- 2021-03-01 11:29:35下载
- 积分：1
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CSS3下拉菜单-向下滑动显示
CSS3 Animated Navigation Menu，向下滑动的多级菜单，需要运行于支持HTML5的浏览器中，本菜单由国外前端爱好者设计，鼠标移在彩色按钮上，可滑出带动画效果的二级子菜单，纯CSS3实现，测试请使用IE9以上版本，或者使用FF或chrome浏览器。
- 2022-03-19 00:02:27下载
- 积分：1
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校电赛-LED
说明： 蓝牙串口控制普通了的灯的各种模式，以stm32c8t6为核心(Bluetooth Serial Port Configuration)
- 2019-07-09 14:58:47下载
- 积分：1
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Qpress
说明： 一个轻量级的快速压缩算法，适合是stm32等单片机使用，压缩比收文件内容影响，测试进行100KB的二进制文件可压缩到60KB(A lightweight fast compression algorithm, suitable for the use of STM32 and other microcontrollers, compression ratio file content impact, testing 100 KB binary file can be compressed to 60 KB)
- 2020-06-18 06:40:01下载
- 积分：1
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PMSM_DTC_SMC
基于二阶滑膜控制器的永磁同步电机直接转矩控制仿真(DTC of PMSM Based on SMC)
- 2018-08-13 11:31:49下载
- 积分：1
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2D Unsteady convection-diffusion
2D Unsteady convection-diffusion problem
- 2020-06-22 01:20:02下载
- 积分：1
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Socket客户端和服务端 Socket-master
说明： 实现Socket客户端和服务端，模拟消息发送和接收，实现客户端和服务端通信;(socket server and client)
- 2020-07-29 11:54:31下载
- 积分：1
