三相步進(jìn)電機(jī)的三相六拍工作方式，正轉(zhuǎn)的繞組通電順序：A、AB、B、BC、C、CA、A，反轉(zhuǎn)的通電順序：A、AC、C、CB、B、BA、B、A。 由于步進(jìn)電機(jī)轉(zhuǎn)子有一定的慣性以及所帶負(fù)載的慣性，故步進(jìn)電機(jī)的工作過程中不能及時(shí)的啟動(dòng)和停止，在啟動(dòng)時(shí)應(yīng)慢慢的加速到預(yù)定速度，在停止前應(yīng)逐漸減速到停止，否則，將產(chǎn)生失步現(xiàn)象。 步進(jìn)電機(jī)的控制問題可總結(jié)為兩點(diǎn)： 1、產(chǎn)生工作方式需要的時(shí)序脈沖； 2、控制步進(jìn)電機(jī)的速度，使它始終遵循加速、勻速、減速的規(guī)律工作。
標(biāo)簽： 三相 步進(jìn)電機(jī) 工作方式
上傳時(shí)間： 2015-12-01
上傳用戶：685
The Rayleigh Integral Method is useful in computing the acoustic properties of a flat panel radiating into a half space.
標(biāo)簽： properties computing Rayleigh Integral
上傳時(shí)間： 2015-12-07
上傳用戶：youmo81
http://www.bc-cn.net/Article/kfyy/cyy/jc/200409/5_4.html float aver(float a[5]) { int i float av,s=a[0] for(i=1 i<5 i++) s=s+a[i] av=s/5 return av } void main() { float sco[5],av int i
標(biāo)簽： float Article 200409 bc-cn
上傳時(shí)間： 2014-01-08
上傳用戶：zsjzc
Rao-Blackwellised Particle Filters (RBPFs) are a class of Particle Filters (PFs) that exploit conditional dependencies between parts of the state to estimate. By doing so, RBPFs can improve the estimation quality while also reducing the overall computational load in comparison to original PFs. However, the computational complexity is still too high for many real-time applications. In this paper, we propose a modified RBPF that requires a single Kalman Filter (KF) iteration per input sample. Comparative experiments show that while good convergence can still be obtained, computational efficiency is always drastically increased, making this algorithm an option to consider for real-time implementations.
標(biāo)簽： Particle Filters Rao-Blackwellised exploit
上傳時(shí)間： 2016-01-02
上傳用戶：refent
13th Israeli Symposium of AI, CV, and NN, Tel Aviv University, Tel Aviv, Israel, Feb. 2-4, 1997 D. Dori, D. Hubunk and Liu W, “Improving the Arc Detection
標(biāo)簽： D. Aviv University Symposium
上傳時(shí)間： 2013-12-23
上傳用戶：水口鴻勝電器
This a naive implementation of BOOTP/TFTPBOOT, the protocols to use to bootstrap a computer through a TCP/IP network. The goal was to design a small footprint implementation to allow the code to be integrated into a monitor program stored in a ROM/FLASH, the footprint is about 7 KBytes for the test program. This code has not been yet tested in many environment. It should be seen at your starting point to integrate the network boot function to your board.
標(biāo)簽： implementation bootstrap protocols TFTPBOOT
上傳時(shí)間： 2013-12-18
上傳用戶：極客
The Linux Enterprise Cluster explains how to take a number of inexpensive computers with limited resources, place them on a normal computer network, and install free software so that the computers act together like one powerful server. This makes it possible to build a very inexpensive and reliable business system for a small business or a large corporation. The book includes information on how to build a high-availability server pair using the Heartbeat package, how to use the Linux Virtual Server load balancing software, how to configure a reliable printing system in a Linux cluster environment, and how to build a job scheduling system in Linux with no single point of failure. The book also includes information on high availability techniques that can be used with or without a cluster, making it helpful for System Administrators even if they are not building a cluster. Anyone interested in deploying Linux in an environment where low cost computer reliability is important will find this book useful.
標(biāo)簽： inexpensive Enterprise computers explains
上傳時(shí)間： 2014-11-29
上傳用戶：zhangliming420
這是一個(gè)模擬第3類模式地震波的matlab腳本。 This a collection of Matlab scripts that solve the antiplane (mode III) earthquake dynamic problem with slip-weakening friction, on a 1D fault embedded in a 2D homogeneous elastic unbounded medium. The problem is formulated as a boundary integral equation and the elastodynamic kernels are analytically derived in the spectral domain (spatial wavenumber). The method is explained e.g. by Morrysey and Geubelle (1997), and has been improved and extensively used by Nadia Lapusta, Alain Cochard, etc.
標(biāo)簽： collection antiplane scripts matlab
上傳時(shí)間： 2013-12-26
上傳用戶：遠(yuǎn)遠(yuǎn)ssad
KeePass for J2ME is a J2ME port of KeePass Password Safe, a free, open source, light-weight and easy-to-use password manager. You can store passwords in a highly-encrypted database on a mobile phone, and view them on the go.
標(biāo)簽： KeePass J2ME light-weight Password
上傳時(shí)間： 2016-01-25
上傳用戶：er1219
Developing internationalized products is a continuous balancing act. Developers and their managers often grossly underestimate the level of effort and attention to detail required to create either a world-ready, single-binary application ready for use in many different markets, or high-quality, foreign-language editions of a product. If you are a developer, make sure your management understands what is involved.
標(biāo)簽： internationalized Developing Developers continuous
上傳時(shí)間： 2014-12-05
上傳用戶：TRIFCT
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