内存管理

红外线驱动，适合MA880/MA660。-infrared-driven, for MA880/MA660.

电子皮带秤数据采集工具，可以广泛和码头，电厂等拉姆齐仪表直接连接

本文首先概述了OFDM 的原理、特征和关键技术，介绍了系统需要的几种同步。然后就同步误差对系统性能的影响进行了简单的分析，表明定时偏差和采样频率偏差将会引入码间干扰，载波频率偏差导致载波间干扰的发生。因此，在OFDM系统接收机中定时的确定、载波频率偏差和采样频率偏差的纠正是信号恢复的关键。之后对OFDM系统同步的几种实现方法进行了介绍，分析了各同步方法的性能。-The paper first outlines the principles of OFDM, features and key technologies, the system needs to introduce several synchronization. Synchronization error and then the impact on system performance for a simple analysis, show that the timing deviation and the sampling frequency deviation will introduce inter-symbol interference, the carrier frequency deviation led to the occurrence of ICI. Therefore, in OFDM system receiver to determine the timing, carrier frequency offset and sampling frequency offset correction signal to restore the key. After the OFDM system to achieve synchronization of several methods of introduction, an analysis of the performance of the synchronization method.

简单密码输入框 简单密码输入框 -simple password input box si mple password input box si mple password input box SR single password input box

chipbank芯邦的USB芯片的制作的U盘格式化软件。支持芯邦的所有USB主控芯片，同时对海力士、三星等Flash都能够支持。-Chipsbrand chipbank the USB chips produced by U disk formatting software. Chipsbrand support all USB control chip, while Hynix, Samsung will support Flash and so on.

电信知识基础教材-Telecom knowledge base of teaching materials

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pb开发的库存管理系统-pb development of the inventory management system

Ni－LabVIEW的源程序第四个，具体请看内容 很少见的哦-Ni-fourth LabVIEW source, details, please read the content rarely see oh! !

最简易实用的串口上位机开发例子，VC++ 环境，最适合没有上位基础的电子工程师，硬件设计师学习。-The most simple and practical example of serial PC development, VC++ Environment, not the most suitable upper-based electronic engineers, hardware designers to learn.