MM440变频器通过PROFIBUS与PLC的通讯的实现
Realization of communication between MM440 inverter and PLC through PROFIBUS (2020-12-10, Others, 402KB, 下载0次)
西门子mm420变频器说明书，本文档介绍了变频器的内部硬件结构，接线说明，以及变频器的参数详细功能介绍等
Siemens MM420 Inverter Instructions, this document describes the internal hardware structure of the converter, wiring instructions, as well as the detailed function of the parameters of the converter, etc. (2019-02-20, Others, 1018KB, 下载2次)
进行波形数据分析,各种资源分配算法实现，多机电力系统仿真及其潮流计算。
Waveform data analysis, Various resource allocation algorithm, Multi-machine power system simulation and flow calculation. (2017-05-23, Others, 6KB, 下载0次)
本程序的性能已经超过其他算法，利用matlab写成的窄带噪声发生，采用波束成形技术的BER计算。
This program has exceeded the performance of other algorithms, Using matlab written narrowband noise occurs, By applying the beam forming technology of BE. (2017-05-02, Others, 7KB, 下载2次)
进行波形数据分析,一个计算声子晶体结构的一维传递矩阵法,数学方法是部分子空间法。
Waveform data analysis, A one-dimensional transfer matrix method to calculate the phonon crystal structure, Mathematics is part of the subspace. (2017-04-24, Others, 5KB, 下载3次)
ML法能够很好的估计信号的信噪比,是本科毕设的题目，进行波形数据分析。
ML estimation method can be a good signal to noise ratio, The title of the commercial is undergraduate course you Waveform data analysis. (2017-04-19, Others, 9KB, 下载0次)
频率切换时间短、工作频率范围宽、频率分辨率高、相位变化连续和容易对输出信号实现调制等。一些公司先后推出了各种各样的DDS专用芯片，这些DDS专用芯片为电路设计提供了很大方便，但是并不能满足所有要求。例如，在实现调频及调幅等复杂功能时，利用现有专用芯片就会很不方便。利用可编程逻辑器件或现场可编程门阵列实现具有很大的灵活性，能够很好地满足电路设计要求。
Frequency switching time is short, the operating frequency range, high frequency resolution, phase changes continuously and easy to achieve modulation of the output signal. Some companies have introduced a variety of DDS dedicated chip, these dedicated DDS chip circuit design provides great convenience, but does not meet all the requirements. For example, in the realization of complex functions such as FM and AM, the use of existing ASIC will be very convenient. The use of programmable logic devices, or field programmable gate array implementation has great flexibility, can well meet the circuit design requirements. (2013-06-03, Others, 446KB, 下载2次)
intouch 和 无线网关服务器的连接 文档
connection between intouch and Wireless Geteway (2012-06-08, Others, 626KB, 下载6次)
文提出了一种由可编程控制器(PLC)控 制的火灾自动探测报警控制器
Paper presents a programmable controller (PLC) to control the fire of automatic detection and alarm controller (2012-05-04, Others, 9KB, 下载4次)
基于zigbee的无线传感器网络协议研究与实现
Zigbee wireless sensor network protocol (2012-03-21, Others, 437KB, 下载4次)
教你如可看懂无线通信电路图，需要超星阅读器
If you can read a circuit diagram of the wireless communication needs Superstar reader (2012-03-04, Others, 4827KB, 下载3次)
RT3052 300m无线路由器cpu简介
RT3052 300m wireless router cpu Profile (2011-07-08, Others, 5898KB, 下载22次)
BPSK调制信号的时序波形，并通过瑞利衰落信道
BPSK modulated signal timing waveformsand through TheRayleigh Fading Channel (2011-06-12, Others, 1KB, 下载38次)
cmmb基础知识，数字电视前端硅调谐器工作原理说明文档
cmmb base knowledge
(2011-03-31, Others, 1037KB, 下载3次)
asn1查看器，比较不错，可能对一些朋友有帮助，
asn1 viewer (2010-04-22, Others, 393KB, 下载26次)
西门子S7-200与汇川MD320变频器通讯程序
SIEMENS PLC MD320 programme (2010-04-08, Others, 55KB, 下载292次)
示波器应用基本知识，介绍示波器常见的基本概念及基本原理。
Scope basic introduction (2009-05-10, Others, 1395KB, 下载5次)
RFID阅读器设计中的防碰撞算法设计方案。其中有三篇好的论文
Design of RFID Reader Anti-collision algorithm design. Which has three good papers (2008-08-28, Others, 1087KB, 下载140次)
如何DIY自己下载线，这是AVR编程器下载线制作 (2008-05-01, Others, 64KB, 下载13次)
http://www.pudn.com/Download/item/id/450388.html
SP200S_USB编程器制作资料（支持300多种器件）.很强大的编程器。
Programmer SP200S_USB production of information (to support more than 300 kinds of devices). A very strong programmer. (2008-03-04, Others, 6027KB, 下载34次)