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Modbus协议中文版(比较完善)
说明： Modbus协议中文版，比较完善，仅供学习参考(Chinese version of Modbus Protoco)
- 2020-03-07 09:04:26下载
- 积分：1
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TP900S工具和驱动文件2.2(简版)
振中TP900S工具及驱动下载，仅供学习参考用途。(Vibrating TP900S Tool and Driver Download)
- 2018-12-15 12:33:32下载
- 积分：1
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DigitalComunicationTheory
数字通信原理是一门学习通信原理的重要的基础课程，该ppt讲述了通信原理的基础知识，适合初学者(Principles of digital communication is an important principle of learning communication basic course, the ppt about the basic knowledge of communication principles, suitable for beginners)
- 2008-04-17 09:59:07下载
- 积分：1
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sim_pdf
gsm11.11 gsm11.14规范，用于gsm 的开发(gsm11.11 gsm11.14 norms for the development of gsm)
- 2009-02-23 18:33:19下载
- 积分：1
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MATLAB 参数都已知的GLRT检测
说明： MATLAB信号检测仿真例子 参数都已知的GLRT检测(MATLAB signal detection simulation example)
- 2020-04-13 10:30:12下载
- 积分：1
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network
接入网是电信网的重要组成部分。接入网技术的发展，应用和普及令人瞩目，深受世界各国的广泛重视。本书全面介绍了各种接入网技术。全书共分七章，分别介绍了：接入网基本知识、铜线接入技术，电缆调制解调器接入技术，光接入技术，无线接入技术、接入网接口及其协议、接入网网管技术。
在本书的编写过程中，力求做到内容新颖、知识全面、由浅入深、通俗易懂，注重基本概念和基本原理。本书适用于通信工程专业的本科学生和从事相关专业的技术人员使用。(Access Network is a telecommunications network, an important part of. Access network technology development, application and popularization of eye-catching, by the extensive attention of the world. This book gave a comprehensive account of the various access network technologies. Book is divided into seven chapters, namely the introduction: basic knowledge of Access Network, copper access technologies, cable modem access technology, optical access technologies, wireless access technology, access network interface and its agreements, access network management technology. In the book)
- 2007-10-08 18:57:13下载
- 积分：1
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LDPC
LDPC性能仿真(LDPC performance simulation)
- 2020-11-16 14:29:40下载
- 积分：1
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eary-late
迟早门，集中统一介绍的文献，很好的，可以看看(Sooner or later the door and centralized described in literature, well, you can take a look at)
- 2013-03-21 10:23:29下载
- 积分：1
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Satellite
自己需要给出坐标，GPS测距。主要是实现了基于maltab测距GPS测距原理(you should give coordinates, GPS ranging)
- 2017-08-12 11:22:35下载
- 积分：1
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2
说明： 2. 关于无线信道的多普勒谱，请回答以下问题：
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions:
(1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing;
(2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape;
(3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)
- 2019-01-15 10:49:35下载
- 积分：1
