水管工游戏 本游戏结合面向对象的开发模式，参考原版的任天堂公司水管工游戏，争取能够实现原游戏的基本功能，并在此基础之上我们再对其进行一些功能的扩展，如能够支...

用vb变得密码程序，请帮助揭开，THANKS-Becomes the password using vb program, to help open, THANKS

用Delphi实现热点-hot with Delphi

交通信号灯管理系统，方便快捷十分好用，具有完善功能-trafficlight

把每天重要的事情写下来,做个排序,可以提高工作的效率-The important thing every day to write it down, to be sorted, you can increase efficiency

Java.Class.Dissassembler.v4.0a-Lz0 java程序的反编译器，此版本完全支持JAVA 5。本工具具有两大特性：学习价值，研究class字节码格式能使你更深入理解java；调试的辅助工具。-Java.Class.Dissassembler.v4.0a- Lz0 ja va procedures for the anti-compiler, this version fully supports Java 5. The tool has two main characteristics : Learning, studies class byte code format make you a more in-depth understanding of java; debugging aids.

自己编写一个象棋界面程序，用cbuild 5,拿出来与大家共享。-themselves prepared a chess interface procedures used cbuild 5, to show and share.

U盘控制芯片CH331,CH331 是一个小容量U 盘的控制芯片，只要外加一个串行存储器芯片，就可以实现2KB 到512KB 的小容量U 盘。-U disk controller IC CH331, CH331 is a small-capacity USB control chip, As long as plus a serial memory chips, we would achieve 2 KB to 512 KB of small U disk capacity.

ipx协议聊天程序-ipx agreement chats the procedure

计算时间的剩余值。起倒计时的作用，很准确的计算剩余的秒数，并有进度条的剩余显示-The residual value of computing time. Play the role of the countdown, it is an accurate calculation of the number of seconds remaining, and have the progress bar shows the remaining

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.