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CPLD_FPGA
CPLD_FPGA的入门资料.pdf格式,非常清晰.不可多得的入门级资料.(CPLD_FPGA introductory information. Pdf format, is very clear. A rare entry-level information.)
- 2009-11-23 11:09:48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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s-
说明： C++大学基础教程，北京邮电大学电信工程学院，计算机技术中心(Essentials C++ University, Beijing University of Posts and Telecommunication Engineering, Computer Technology Center)
- 2013-04-03 15:31:37下载
- 积分：1
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opening-system
说明： 操作系统课件 习题 ppt 和很好的课后习题答案(Operating system software ppt and good after-school exercises exercises answers)
- 2011-03-12 10:40:57下载
- 积分：1
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ISO22900
ISO 22900 1-3 道路车辆通信接口模型(ISO 22900 1-3 road vehicle communication interface model)
- 2009-11-28 20:53:32下载
- 积分：1
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非线性优化中的经典算法
BriefDescriptionoftheLM
非线性优化中的经典算法，LM算法，老外写的，言简意赅，对写优化程序很有用(nonlinear optimization of the classical algorithm, LM algorithm, a foreigner writing is concise and clear and optimization process of writing useful)
- 2006-12-27 09:37:58下载
- 积分：1
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kraken
计算海洋声学简正波计算软件pdf,Kraken,大海怪(Normal mode compute software pdf)
- 2021-02-18 17:49:45下载
- 积分：1
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Fluent_technology_and_example
本书基于Fluent 6.2.16版本、Gambit 2.2.30版本和Tecplot 10.0版本，共13章。全书首先详细介绍了Fluent软件及其相关的理论知识，然后通过典型的实例来讲解Fluent在传热、传质及流场等实际工程中的应用方法和技巧，包括运动部件的速度场模拟、UDF和UDS的使用、并行计算的设置、计算区域的绘制和边界条件的定义、Tecplot的数据处理等。每个实例都有详细的说明与详尽的操作步骤，读者只要按照书中的指示与方法操作，即可完成一个具体问题的数值模拟与分析，进而逐步掌握利用Fluent进行流体流动数值模拟的基本方法。
(Fluent 6.2.16 Based on the book version, Gambit 2.2.30 version and the version of Tecplot 10.0, Chapter 13. First of all, the book detailed the Fluent software and its related theoretical knowledge, and then through a typical example to explain Fluent in heat transfer, mass transfer and flow field, such as practical engineering methods and techniques, including the moving parts of the velocity field simulation, UDF and the use of UDS, parallel computing setting, rendering the calculation region and the definition of boundary conditions, Tecplot' s data processing. Each have a detailed description of examples with detailed steps, readers as long as the book' s instructions and in accordance with the method of operation, to complete a specific question of the numerical simulation and analysis, and gradually master the use of Fluent for numerical simulation of fluid flow of the basic method .)
- 2009-06-16 16:13:22下载
- 积分：1
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4-10
这是清华版c＋＋程序设计 第四章课后题第10题(This is the Tsinghua version c Program Design Chapter IV title after title No. 10)
- 2008-01-05 13:47:01下载
- 积分：1
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z
说明： 智能视频监控系统目标检测和跟踪技术分析研究(Intelligent video surveillance system target detection and tracking of technical analysis)
- 2013-03-18 15:46:37下载
- 积分：1
