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射频识别芯片在汽车智能防盗报警装置中的应用,较之普通的磁卡和ＩＣ 卡，ＲＦＩＤ技术具有使用方便、数据交换速度快、便于维护和使用寿命长等优点。特别是它解决了无源（
射频识别芯片在汽车智能防盗报警装置中的应用,较之普通的磁卡和ＩＣ 卡，ＲＦＩＤ技术具有使用方便、数据交换速度快、便于维护和使用寿命长等优点。特别是它解决了无源（卡中无电源）和免接触这两大难题。-Radio frequency identification chip in the smart car anti-theft alarm device, compared with ordinary magnetic cards and IC cards, RFID technology has the ease of use, data exchange speed, ease of maintenance and long life etc.. In particular, it has resolved a passive (no power supply card) and free access to these two problems.
- 2022-08-19 08:43:26下载
- 积分：1
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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LPC2124的一个远程系统软件升级方案
基于LPC2124的一个远程系统软件升级方案-Based on LPC2124 for a remote system software upgrade program
- 2022-08-26 08:57:45下载
- 积分：1
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Here is a complete project for buil your tv modulator with a pic16f84 and a td63...
Here is a complete project for buil your tv modulator with a pic16f84 and a td6359
- 2023-07-19 04:50:03下载
- 积分：1
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信噪比与检测范围为目标的类型和无脉冲积分…
SNR versus detection range for both target types with and without pulse integration.-SNR versus detection range for both target types with and without pulse integration.
- 2023-07-27 00:40:03下载
- 积分：1
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语音控制系统电梯电梯电梯语音控制系统控制。
语音控制系统电梯语音控制系统
- 2022-03-01 07:50:11下载
- 积分：1
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网络组建 校园网的组建 与安全维护 为2008年全国职业院校技能大赛复习资料...
网络组建 校园网的组建 与安全维护 为2008年全国职业院校技能大赛复习资料-Network formed
- 2022-07-19 02:09:50下载
- 积分：1
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在z228_software_programming_guide海杰
上海杰得 Z228_Software_Programming_Guide-On a Z228_Software_Programming_Guide Haijie
- 2022-02-12 22:15:10下载
- 积分：1
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本设计介绍了用单片机作为控制器的直流电源设计方案
本设计介绍了用单片机作为控制器的直流电源设计方案-Introduction of the design using the single-chip microcomputer as the controller of the DC power supply design
- 2023-01-16 10:55:03下载
- 积分：1
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在设计右腿驱动电路时，会有助于心电图
ECG Notes will be helpful while designing right leg drive circuit
- 2022-03-20 18:56:01下载
- 积分：1
