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1024188393.zip
说明： 直流电动机驱动控制集成电路L293D简介，希望对大家有帮助(DC motor driver IC L293D control profiles, we hope to help)
- 2009-08-19 07:48:31下载
- 积分：1
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bd-protocal
北斗一代通信协议，用于北斗通信程序编写的参考资料，希望对大家有用(Beidou generation communication protocol, Compass Resources for communication programs written .HOPE it s good use for you,)
- 2016-09-20 14:48:28下载
- 积分：1
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NURBS110707
高速切削加工技术是一种先进的制造技术，具有强大的生命力和广阔的应
用前景，已成为切削加工的主流。数控插补技术是数控系统实现轨迹运动控制
的基础，插补运算是CNC系统软件实现运动控制的核心模块，插补算法的优劣
将直接影响到CNC系统的性能。因此，实现一种高精度和高速度的插补方法是
插补的关键所在。
本文在分析传统基准脉冲插补、数据采样插补的算法的基础上，着重研究
了三次NURBS曲线实时插补技术，针对部分算法的不完整或效率低，提出了
一种简单快捷的插补算法。采用NURBS曲线的矩阵表达式，将整个插补过程
分解为插补预处理和实时插补。在插补预处理中完成了大量的计算，预处理的
计算结果直接应用于实时插补，使插补算法满足了NURBS曲线插补的实时性
要求，再辅以必要的轮廓误差控制，实现了加工速度自适应于加工路径的
NURBS曲线直接插补。
本文讨论的插补算法采用C++语言实现，并在VC++6.0的编程环境中实现
了插补算法的计算机仿真，验证了算法的正确性和可行性。(The high speed cutting is one of advanced manufacture technique,which has the powerful vitality and the broad application,and already became the mainstream of machining.The interpolation technology of NC is the foundation of path s control in the CNC system,and the interpolation operation is the core module of
CNC system software,which comes the motion control true.The interpolation
algorithm,whose function is good or bad,directly influences the performance of CNC system.So,a kind of interpolation method with the high accuracy and high speed is the key of interpolation.
Based on analyzing the traditional pulse interpolation and data sampling
interpolation,this paper emphasizes on the NURBS curve real-time interpolation
technology.In view of the partial algorithms which is incomplete and the low efficiency,this paper propose a simple and quick interpolation algorithm.Using the
matrix representation of NURBS curve,the whole interpolation process is divided into appropriate pretreat)
- 2011-07-07 11:46:17下载
- 积分：1
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S7300_PPT
西门子S7300教学PPT,很适合入门学习之用(Siemens S7300 Teaching PPT, is suitable for entry-learning)
- 2009-04-20 09:02:00下载
- 积分：1
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Csdn
Csdn刷下载积分工具,请慎重使用.后果自负(Csdn brush tool to download Points)
- 2010-01-13 22:44:13下载
- 积分：1
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thunk_x64
x64实现Thunk的新思路，兼容x86，目前能使用的第一份x64下的thunk代码。(x64 new ideas to achieve Thunk, compatible with x86, is currently able to use the first thunk code under x64.)
- 2009-04-17 03:44:53下载
- 积分：1
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singal_processing_and_demo_program
说明： 包含内容：离散时间系统与Z变换、离散傅里叶变换及其快速算法、无限长单位脉冲响应(IIR)滤波器的设计、有限长单位脉冲响应(FIR)滤波器的设计、数字信号处理系统的实现、多采样率信号处理(singal processing and demo program)
- 2020-12-02 20:19:26下载
- 积分：1
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Windows-programmer-desion
说明： 是一部window开发比较全面的书籍，书中涉及了window开发的所有内容，适合有一定编程基础的开发人员不断地学习。(Window is a more comprehensive development of books, book covers all the contents of window development for a certain programming based development staff have been learning.)
- 2011-03-04 11:40:20下载
- 积分：1
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book
VB书籍 推荐之作 力顶 有需要的速度下载(VB)
- 2009-09-16 08:55:58下载
- 积分：1
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Machine-Vision-Theory
机器视觉理论PPT,入门者可看下，主要介绍一些机器视觉入门内容(Machine vision theory PPT, beginners can look, introduces some of the machine vision getting started)
- 2016-08-18 15:54:08下载
- 积分：1
