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包括了ＡＲＭ的bootload的详细介绍，详细分析了ＵＢＯＯＴ的移植和编写．另外还介绍了ＡＲＭ＿ＬＩＮＵＸ驱动的编写...
包括了ＡＲＭ的bootload的详细介绍，详细分析了ＵＢＯＯＴ的移植和编写．另外还介绍了ＡＲＭ＿ＬＩＮＵＸ驱动的编写-err
- 2023-02-23 07:10:04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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数据迁移
数据迁移是一项繁锁而又单调的工作，面对各种各样的基础数据，定制开发数据迁移工具往往费时费力，切不通用，那么到底什么工具能够胜任我们的工作呢？...
数据迁移
数据迁移是一项繁锁而又单调的工作，面对各种各样的基础数据，定制开发数据迁移工具往往费时费力，切不通用，那么到底什么工具能够胜任我们的工作呢？-data migration data migration is a tedious but monotonous work, in the face of all kinds of basic data Custom development of a data migration tools are often time-consuming and laborious, cut not definitive, in the end what tools we can do the work?
- 2022-05-24 16:45:40下载
- 积分：1
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yampp MP3 very good information for everyone to see
yampp的MP3资料 非常好大家来看一看-yampp MP3 very good information for everyone to see
- 2022-12-04 23:10:03下载
- 积分：1
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ST7787 chip SPEC, BYD 2.4inchLCM the SPEC. The ST7787 is a single
ST7787 芯片的SPEC，比亚迪2.4inchLCM的SPEC。The ST7787 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 720 source line and
320 gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and accepts Serial
Peripheral Interface (SPI), 8-bits/9-bits/16-bits/18-bits parallel interface. Display data can be stored in the on-chip display
data RAM of 240x320x18 bits. It can perform display data RAM read/write operation with no external operation clock to
minimize power consumption. In addition, because of the integrated power supply circuits necessary to drive liquid crystal,
it is possible to make a display system with the fewest components.-ST7787 chip SPEC, BYD 2.4inchLCM the SPEC. The ST7787 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 720 source line and320 gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and a
- 2022-10-20 09:30:03下载
- 积分：1
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IC Card Reader FAQ allehanda ic card reader to understand the working methods
IC卡读写器的常见问题集锦
了解ic卡读卡器的工作方式-IC Card Reader FAQ allehanda ic card reader to understand the working methods
- 2022-10-07 09:20:03下载
- 积分：1
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网络远程教学观摩方案（校内版），基于IP网络视频应用。
网络远程教学观摩方案（校内版），基于IP网络视频应用。-distance learning network to watch programs (school edition), the IP-based network video applications.
- 2022-10-17 04:40:02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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此文件是对两款can协议控制芯片的介绍并进行很好的比较。
此文件是对两款can协议控制芯片的介绍并进行很好的比较。-C250251 TJA1040
- 2022-03-02 07:04:12下载
- 积分：1
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This text surrounds the development of the electric power SCADA system exactly,...
This text surrounds the development of the electric power SCADA system exactly, aiming at the present condition of the our country electric power charged barbed wire net currently, according to the oneself at the e- lectric power protect the profession after the electricity in seven years of development, design and adjust to try the experience on the scene from following severals carry on the treatise:Is the emergence to the system of SC- ADA and developments to introduce first Carry on the introduction elucidation to applied present condition and the development foregrounds of various terminal equipments communication agreement(rules invite) the next in order Then is the elucidation to the windows the bottom according to the mfc the plait distance environment an- d VC++6.0 plait distance softwares Carry on the more detailed treatise to the realization of the procedure struct- ure frame and the source code again End is the applied case example give examples.-This text surrounds the dev
- 2022-04-07 10:10:30下载
- 积分：1
