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使用USR和RockWell Modem的语音Modem程序
使用USR和RockWell Modem的语音Modem程序 -Modem program Using 3Com USR Modem and RockWell Modem
- 2022-02-12 01:19:29下载
- 积分:1
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confiance level for WSN
该程序计算无线传感器网络中节点的一致性水平。
- 2023-03-31 00:55:04下载
- 积分:1
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扩频通信。第一本书
扩频通信.第一本有关扩频系统的专著是R.C.Dixon于1976年出版,是一本IEEE专利,1977年出版。1978年在日本京都召开国际无线通信咨询委员会公布研究成果。1982年在美国召开第一次军事通信会议,两次报告在军事中的应用。1985年美国提出CDMA(码分多址)的概念同年美国联邦通信委员会(FCC)制定扩频通信的标准和规范,逐步转入民用的商业化研究-Spread Spectrum Communication. The first book on spread-spectrum systems is RCDixon monograph published in 1976, is an IEEE patent, published in 1977. In 1978 in Kyoto, Japan, an international wireless communications Advisory Committee published research results. 1982 in the United States held its first military communications conference, two reports in the military applications. The United States in 1985 proposed CDMA (Code Division Multiple Access) the concept of the same year the United States Federal Communications Commission (FCC) the development of spread spectrum communication standards and norms, and gradually transferred to the commercialization of civilian research
- 2022-02-13 11:34:58下载
- 积分:1
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wifi小车程序
此程序是wifi小车 基于STC12单片机 晶振22.1184 8路舵机 超声波测距视频监测
- 2022-12-25 07:05:03下载
- 积分:1
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ISUP消息中rel原因值
G3.1正常类别
原因NO.1:未分配的(未确定的)号码
"unassigned (unallocaled) numb...
ISUP消息中rel原因值
G3.1正常类别
原因NO.1:未分配的(未确定的)号码
"unassigned (unallocaled) number"
该原因表示不能到达主叫用户所请求的终点,因为虽然号码格式有效,但该号码目前尚未分配(未确定)。
原因NO.2:无路由到达规定的转换网络(国内使用)
"no route to specified transit network(nationaluse)"-ISUP message rel normal categories of reasons for the value of G3.1 reasons NO.1: unallocated (unspecified) number of
- 2022-04-15 02:13:14下载
- 积分:1
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北邮的《通信原理》课件,希望对大家有所帮助
北邮的《通信原理》课件,希望对大家有所帮助-Beijing University of Posts and Telecommunications of the
- 2022-05-22 21:20:50下载
- 积分:1
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- 2022-04-19 20:32:11下载
- 积分:1
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在altera fpga中实现epp模式的并口通信程序
在altera fpga中实现epp模式的并口通信程序-epp model of parallel in fpga
- 2022-07-16 04:38:36下载
- 积分:1
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关于SOCKET线程池,多个线程可否对同一个套接字同时写操作等问题?...
关于SOCKET线程池,多个线程可否对同一个套接字同时写操作等问题?-SOCKET threads on the pool, the possibility of multiple threads on the same socket at the same time a write operation and other issues?
- 2022-03-22 21:05:33下载
- 积分:1
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visual development tools such as Visual C++, Delphi, C++ Builder and others all...
虽然Windows下可视化开发工具如VC、Delphi、C++ Builder等都有专用的定时器控件Timer,而且使用很方便,可以实现一定的定时功能,但最小计时精度仅为55ms,且定时器消息在多任务操作系统中的优先级很低,不能得到及时响应,往往不能满足实时控制环境下的应用。不过Microsoft公司在Win32 API函数库中已经为用户提供了一组用于高精度计时的底层函数,如果用户使用得当,计时精度可到1ms。这个计时精度、对于一般的实时系统控制完全可以满足要求。现将由C++ Builder 4.0提供的重新封装后的一组与时间相关的主要接口函数(函数名、参数、功能与Win32 API基本相同)说明如下:
-visual development tools such as Visual C++, Delphi, C++ Builder and others all have dedicated Timer timer control, but it is convenient. can achieve a timing function, but only the minimum time of 55 ms accuracy. Timer news and multi-task operating system in the low priority that is not to respond in a timely manner, often fail to meet the real-time control environment applications. However, Microsoft Corporation in the Win32 API function has been to provide the user with a group for high-precision the bottom was a time function, if the user is properly utilized, time accuracy can be a ms. Accuracy this time, and for most of the real-time control system can meet the requirements.
- 2022-02-11 22:11:49下载
- 积分:1