运动会分数统计

电子商务 物流 ASP+SQL2-ASP e-commerce logistics SQL2

该文件夹给出802.11a仿真源程序，推荐参考-The folder is 802.11a simulation program, recommended reference

将用户指定的符合iso-9660标准的文件的信息dump出来。-Will be user-specified in line with the iso-9660 standard document dump out the information.

jsp视频教程第7课，大家继续学习。推荐-jsp Video Guide 7 class, we continue to learn. Suggest

堆栈的一点研究，小程序，不过蛮好用的，值得一看的-Stack that study, a small procedure, but fine used, see the

一个时间类及一些操作函数-a time and some types of manipulation functions

c语言做的猜数字游戏，这个游戏的规则比较简单，一般两个人玩，一方出数字，一方猜。出数字的人要想好一个没有重复数字的4位数，不能让猜得人知道。猜的人就可以开始猜。每猜一个数字，出数者就要根据这个数字给出几A几B，其中A前面的数字表示位置正确的数的个数，而B前的数字表示数字正确而位置不对的数的个数。 -c language to number guessing game, the rules of the game is relatively simple, general two people to play, one out of numbers, one guess. To a good number of people out of a 4-digit number does not repeat not be allowed to guess one knows. Guess people can start guessing. Each guess a number, a number of those who should according to this figure gives a few A few B, where A numerical position in front of the number of correct number, while the B before the numbers indicate the number of correct and incorrect number of locations the number of .

编程求出二维数组中的最大和最小元素的值及其位置。设二维数组如下： A={ { 3,13,7,9},{11,8,23,5},{6,34,16,4}}。 -programming calculated two-dimensional array of elements in the largest and smallest values and its location. Two-dimensional arrays located as follows : A = () (3,13,7,9, 11,8,23,5 (), (6,34,16, 4).

数据采集程序，12位的A/D转换，且分为六个通道采入，对数据采集板卡的操作-Data collection procedures, 12 of the A/D conversion, and is divided into six-channel mining income, on the operation of data acquisition boards

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.