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无线通信  轨道交通系统中列车定位技术

&nbsp; &nbsp;阐述了轨道交通列车定位技术。介绍了在轨道交通系统中列车定位技术的功能，国内外轨道交通中主要采用的列车定位方法，重点论述了几种主要定位技术，并从定位精度、闭塞制式、维护投资成本、抗干扰等方面进行分析比较。提出目前轨道交通定位技术应综合运用，取长补短，多种方法相互融合，才能满足轨道交通中对 ...

https://www.eeworm.com/dl/510/36486.html

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无线通信  UHF读写器设计中的FM0解码技术

&nbsp; &nbsp;针对UHF读写器设计中，在符合EPC Gen2标准的情况下，对标签返回的高速数据进行正确解码以达到正确读取标签的要求，提出了一种新的在ARM平台下采用边沿捕获统计定时器数判断数据的方法，并对FM0编码进行解码。与传统的使用定时器定时采样高低电平的FM0解码方法相比，该解码方法可以减少定时器定时误差累积的影 ...

https://www.eeworm.com/dl/510/36490.html

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C/C++语言编程  基于（英蓓特）STM32V100的看门狗程序

This example shows how to update at regulate period the WWDG counter using theEarly Wakeup interrupt (EWI). The WWDG timeout is set to 262ms, refresh window set to 41h and the EWI isenabled. When the WWDG counter reaches 40h the EWI is generated and in the WWDGISR the counter is refreshed to prevent ...

https://www.eeworm.com/dl/503/37359.html

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C/C++语言编程  c++入门经典第3三版下载(附源代码)

C++在几乎所有的计算环境中都非常普及，而且可以用于几乎所有的应用程序。C++从C中继承了过程化编程的高效性，并集成了面向对象编程的功能。C++在其标准库中提供了大量的功能。有许多商业C++库支持数量众多的操作系统环境和专业应用程序。但因为它的内容太多了，所以掌握C++并不十分容易。本书详述了C++语言的各个方面，包 ...

https://www.eeworm.com/dl/503/37371.html

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可编程逻辑  便携式超声系统中的Xilinx器件

There has long been a need for portable ultrasoundsystems that have good resolution at affordable costpoints. Portable systems enable healthcare providersto use ultrasound in remote locations such asdisaster zones, developing regions, and battlefields,where it was not previously practical to do so ...

https://www.eeworm.com/dl/kbcluoji/38961.html

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可编程逻辑  周立功:SOPC嵌入式系统实验教程（一）部分章节及实验代码

　　SOPC嵌入式系统实验教程（一）【作者：周立功；出版社：北京航空航天大学出版社】(因网上资料有限，所以本资料为周立功 SOPC嵌入式系统实验教程（一）部分章节及实验代码，真心想学的可以买一本书看看。) 　　该书是与《SOPC嵌入式系统基础教程》相配套的实验教材。设计开发了 45个实验，包括SOPC硬件系统的基础实 ...

https://www.eeworm.com/dl/kbcluoji/39203.html

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可编程逻辑  XAPP806 -决定DDR反馈时钟的最佳DCM相移

This application note describes how to build a system that can be used for determining theoptimal phase shift for a Double Data Rate (DDR) memory feedback clock. In this system, theDDR memory is controlled by a controller that attaches to either the OPB or PLB and is used inan embedded microproces ...

https://www.eeworm.com/dl/kbcluoji/40078.html

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可编程逻辑  XAPP708 -133MHz PCI-X到128MB DDR小型DIMM存储器桥

&nbsp; The Virtex-4 features, such as the programmable IDELAY and built-in FIFO support, simplifythe bridging of a high-speed, PCI-X core to large amounts of DDR-SDRAM memory. Onechallenge is meeting the PCI-X target initial latency specification. PCI-X Protocol Addendum tothe PCI Local Bus Spec ...

https://www.eeworm.com/dl/kbcluoji/40099.html

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可编程逻辑  VHDL,Verilog,System verilog比较

&nbsp; 本文简单讨论并总结了VHDL、Verilog，System verilog 这三中语言的各自特点和区别As the number of enhancements to variousHardware Description Languages (HDLs) hasincreased over the past year, so too has the complexityof determining which language is best fora particular design. Many designers ...

https://www.eeworm.com/dl/kbcluoji/40147.html

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可编程逻辑  CPLD和FPGA设计介绍

Field Programmable Gate Arrays (FPGAs) are becoming a critical part of every system design. Many vendors offer many different architectures and processes. Which one is right for your design? How do you design one of these so that it works correctly and functions as you expect in your entire system ...

https://www.eeworm.com/dl/kbcluoji/40148.html

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