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摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向，交频分复用
OFDM)是一种无线环境下的高速传输技术，它对高速列车控制信息传输中卞要受...
摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向，交频分复用
OFDM)是一种无线环境下的高速传输技术，它对高速列车控制信息传输中卞要受到的由于多
径传播引起的快衰落所产生的影响有很强的抵抗能力.本文首先介绍了OFDM技术的发展和
基本原理，然后在计算机上用M atlal〕对其性能进行了仿真，仿真中将OFDM与传统的单载波
调制方式―i1，交振幅调制( 1frQAM)对抗多径十扰的性能进行了比较，最后分析了一者的仿真结果.
-Abstract: Based on the communication technology train operation control system (CBTC) is a railway signal direction for the development of cross-frequency division multiplexing OFDM) is a wireless environment of high-speed transmission technology, its high-speed train control information transmission Bian be subject to the Due to the spread of multi-path fast fading caused by the impact of a strong resistance to diseases. This paper first introduces the OFDM technology development and the basic principles, and then on the computer〕 M atlal use its performance simulation will OFDM with the traditional single-carrier modulation-i1, cross-amplitude modulation (1frQAM) against multi-path interference of the 10 properties were compared with a final analysis of
- 2022-08-24 10:19:13下载
- 积分：1
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基于专用运动控制芯片的开放式数控系统研究
基于专用运动控制芯片的开放式数控系统研究
-Special motion control chip based on Open CNC System
- 2022-02-27 09:30:18下载
- 积分：1
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看名字拉
看名字拉-saw the name Rafah
- 2022-06-12 13:18:16下载
- 积分：1
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本课题设计的是一套计算机控制的温度、湿度实时监测与报警系统，可应用于多种需要采集温湿度数据的场合，本文完成了整个系统的软硬件设计。...
本课题设计的是一套计算机控制的温度、湿度实时监测与报警系统，可应用于多种需要采集温湿度数据的场合，本文完成了整个系统的软硬件设计。-design of this project is a computer-controlled temperature, humidity and real-time monitoring and alarm system, can be applied to various needs of temperature and humidity data acquisition occasions, we completed the whole system hardware and software design.
- 2023-03-26 18:20:04下载
- 积分：1
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VT6212 PCI转USB2.0原理图。目前最常用的转接卡电路图
VT6212 PCI转USB2.0原理图。目前最常用的转接卡电路图-VT6212 PCI to USB2.0 schematic. At present, the most commonly used adapter circuit diagram
- 2023-01-18 04:50:04下载
- 积分：1
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电子元件的设计需要注意74AC04
电子设计是所需的元器件74AC04的说明-Electronic components design is required to note 74AC04
- 2023-03-16 19:15:03下载
- 积分：1
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8 kana alici verici devresi
8 kana alici verici devresi
- 2022-04-10 05:29:53下载
- 积分：1
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一个带有子系统的PID仿真，基于Matlab Simulink
一个带有子系统的PID仿真，基于Matlab Simulink-Simulation of PID controller, based on Matlab Simulink
- 2022-02-11 20:58:14下载
- 积分：1
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无线报警系统的设计
无线报警系统的设计-Wireless Alarm System Design
- 2022-01-25 19:43:51下载
- 积分：1
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PLL system LPF/PFD/VCO/Divider model in Matlab,在Matlab中将PLL系统的各个模块模型话，便于分析整个PLL的...
PLL system LPF/PFD/VCO/Divider model in Matlab,在Matlab中将PLL系统的各个模块模型话，便于分析整个PLL的环路稳定特性，锁定时间等…… 附录中包含完整的Matlab code-PLL system LPF/PFD/VCO/Divider model in Matlab, the Matlab will PLL system model of each module, the easy analysis of the whole PLL loop stability characteristics, lock time ... ... the appendix contains a complete Matlab code
- 2022-01-26 05:47:50下载
- 积分：1
