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这是一个实现linux系统下的scp的命令相同功能的程序,客户端和服务端通信使用了自己定义了的通信协议。
文件传送协议格式:
服务器路径#服务器上的文...
这是一个实现linux系统下的scp的命令相同功能的程序,客户端和服务端通信使用了自己定义了的通信协议。
文件传送协议格式:
服务器路径#服务器上的文件名#操作类型#文件大小
操作类型:0代表上传操作 1代表下载操作
文件大小:上传下载的文件大小
服务器返回的消息类型:
0 :服务器创建文件失败
1:服务器操作成功
2:文件大小不同 (未实现)
注意:
1:正则表达式没有实现
2:其余实现
3:服务器可以为多个客户端服务,用多进程实现-This is a linux system realize the scp command functions the same procedures, client and client communication services using its own definition of the communication protocol. File Transfer Protocol format: server path# Server 23 file name! Operation type# File size operation types: 0 From operated on behalf of one operation on behalf of download file size: From the size of the downloaded file to return to the news server type: 0 : The server failed to create file 1: Server operation successful 2: documents of different sizes (not realize) Note: 1: regular expression did not realize 2: the rest of the realization of 3: The server can service multiple clients, and realize multi-process
- 2022-03-20 03:16:03下载
- 积分:1
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TAPI是微软集成在操作系统中的一个功能,我们利用TAPI可以实现通信 传真的功能,该实例主要用于电话语音方面的,值得借鉴....
TAPI是微软集成在操作系统中的一个功能,我们利用TAPI可以实现通信 传真的功能,该实例主要用于电话语音方面的,值得借鉴.-TAPI is the Microsoft operating system integrated into a functional, we can realize the use of TAPI fax communication capabilities, the examples of the major aspects for telephony, is worth learning from.
- 2023-06-19 08:40:03下载
- 积分:1
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手机软件系统的设计(MSC图及SDL图)
本系统实现的是一个简易的手机软件系统,具有基本的通话功能。...
手机软件系统的设计(MSC图及SDL图)
本系统实现的是一个简易的手机软件系统,具有基本的通话功能。-The design of mobile software systems (MSC and SDL map map) This system is a simple cell phone software systems, have a basic call function.
- 2022-01-24 18:25:27下载
- 积分:1
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七号信令网是我国的电信主干网,在从事电信相关行业的朋友可以下载学习...
七号信令网是我国的电信主干网,在从事电信相关行业的朋友可以下载学习-On the 7th signaling network is the backbone of China s telecommunications network, engaged in telecommunications related industries friends can download the learning
- 2023-06-02 09:15:03下载
- 积分:1
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communications source, the CND
通讯源码,来电显示-communications source, the CND
- 2022-05-27 16:14:35下载
- 积分:1
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TCP/IP Vol II Commer
TCP / IP Vol II Commer-TCP/IP Vol II Commer
- 2022-08-13 15:38:16下载
- 积分:1
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In this simulink model , baseband binary detection is simulated .A rectangular p...
In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered
at the detector output.-In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The binary signal transmitted is recovered
at the detector output.
- 2022-02-10 08:21:21下载
- 积分:1
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分步傅利叶方法解非线性方程
分步傅利叶方法解非线性方程-Fourier step-by-step method for solving systems of nonlinear equations
- 2023-06-16 07:35:02下载
- 积分:1
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差分联合编码调制BICM-ID方案
可靠性和有效性是数字通信系统的两大性能指标。然而,在数字通信系统中,二者往往是一对矛盾,在频带资源日益紧张的当代,如何在保证一定通信可靠性的前提下尽可能提高有效性是通信领域永恒的主题。在光通信系统中,接收机在进行相位恢复时必须设法克服相位模糊问题,为此,常常采用差分调制(DQPSK)。然而,差分调制会导致信号误码率加倍,产生额外的信噪比代价。本文分析了迭代差分解调译码方案,即将LDPC编码和差分调制作为整体进行优化。仿真结果表明,该方案既可以克服相位模糊又能补偿差分代价,增强了系统的可靠性。同时,本文分析了适合该方案的LDPC码的度优化算法和满足任意度分布的校验矩阵的构造方法。在无线通信系统中,无线信道的衰落特性严重影响通信传输的有效性与可靠性。分集技术是一种典型的抗衰落技术,本文研究了联合编码调制分集技术,对该技术的两个关键因素:多维旋转调制和分量交织器的设计进行了重点研究,使得该技术更好地将信道编码增益与时间、频率、空间和调制分集相结合,使系统达到很高的频谱效率,有效地抵抗衰落信道下的各种干扰,增强了整个通信系统的有效性与可靠性。
- 2022-07-03 04:00:21下载
- 积分:1
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调试tcp端口程序,通过程序可以对tcp程序进行调试,方便了程序的调试功能....
调试tcp端口程序,通过程序可以对tcp程序进行调试,方便了程序的调试功能.-debugging tcp port procedures, the procedures can be debugged tcp procedures to facilitate the process of debugging functions.
- 2023-05-06 20:15:02下载
- 积分:1