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电话拨号程序
实现电话十二键拨号的音效和敲击键时的两种波形图(To achieve the sound of telephone dialing and the waveform when hitting key.)
- 2020-11-21 20:29:36下载
- 积分:1
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GTcall
公通软电话,市话,长途都是8分钱。注册一下平台,用户名和密码就可使用。-GTcall
- 2023-01-24 21:30:04下载
- 积分:1
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part4
说明: 手机设计基本原理,对于研究手机这一块很有帮助.(The basic principles of mobile phone design, the study of this piece of useful phone.)
- 2008-09-20 23:35:24下载
- 积分:1
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Sql column data dictionary description of the relevant information table describ...
数据字典相关sql
列描述信息
表描述信息
创建列描述信息
创建表描述信息
更行字段说明,更新表说明 存在才能更新
获取SQL Server服务器的连接信息用脚本
字段信息
索引信息
约束与过程信息
查询存储过程
查询视图
主键,外键,约束
服务器,数据库名称
用户数据库名字
用户数据库 创建时间
用户数据库 路径
数据库下所有表-Sql column data dictionary description of the relevant information table describes information to create the column descriptions to create the table describes information more row fields to update your table illustrates there is to update the SQL Server connection to the server to obtain information on field information with the script index information is stored constraints and process information query procedure to query the view primary keys, foreign keys, constraints, server, database name of the user database user name of the user database, the database creation time path of the database, all tables
- 2022-02-03 02:15:47下载
- 积分:1
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基于遗传算法波束形成
说明: 一种基于matlab的遗传算法的波束形成程序,非常的实用。(A beamforming program based on matlab genetic algorithm is very practical.)
- 2019-12-18 15:17:32下载
- 积分:1
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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...
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.
- 2022-03-22 23:04:03下载
- 积分:1
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一个用java写的贪吃蛇游戏 写的不好大家见谅啦
一个用java写的贪吃蛇游戏 写的不好大家见谅啦-with a written Snake game badly written you will forgive me--
- 2022-06-12 03:27:11下载
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一个皮萨店的源码。可以连锁的,而且有各种口味的选择。
一个皮萨店的源码。可以连锁的,而且有各种口味的选择。-A pizza shop source. Can be linked and that there are different flavors.
- 2022-08-06 18:45:06下载
- 积分:1
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Useful information on a drawing if you have similar trouble also upload informat...
很有用的一份图纸资料
如果各位有类似资料麻烦也上传上来哈-Useful information on a drawing if you have similar trouble also upload information onto Kazakhstan
- 2022-05-12 22:42:54下载
- 积分:1
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shuankuifadianjibingwang
风力发电 双馈发电机 并网 仿真 策略 电流滞环控制 锁相环(matlab DFIG dianliu fangzhen suoxianghuan zhihuan)
- 2018-07-20 16:59:09下载
- 积分:1