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Ofdm 技术的研究
这个项目是在 matlab 环境中完成的。它基于在 awgn 信道下使用 BPSK 和 4-QAM 的 ofdm 系统的性能研究。小信噪比的价值相当大的计算的误差 ratewas 和 ISI 制得由于相对高次幂的噪音。SNRwas 增加错误率下降,如预期。事实上,SNRvalue 大于 8 分贝,误差是零。
- 2022-03-23 15:01:30下载
- 积分:1
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这是一份介绍SIP协议的PPT,详细介绍了SIP协议,可以帮助SIP开发人员理解SIP协议各个消息中的头域,以及应用流程。...
这是一份介绍SIP协议的PPT,详细介绍了SIP协议,可以帮助SIP开发人员理解SIP协议各个消息中的头域,以及应用流程。-this is a point for the sip, it introduces the protocol of sip, it can help for programer for understanding the part
- 2022-02-26 10:51:19下载
- 积分:1
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Intelligent machines in the current hardware on many dual
目前的智能机在硬件上多采用双cpu的架构,一个是基带处理器,主要处理数字信号、语音信号的编码解码以及GSM通信协议,另一个是应用处理器,运行操作系统和各种应用程序。基带处理器、射频和其它外围芯片作为一个模块,成为GSM/GPRS modem,提供AT命令接口。网络的应用已经是一个需求的热点,而目前的GSM模块大多都能支持GPRS功能。应用处理器通过AT命令集与带GPRS功能的无线通讯模块通信,为实现网络的应用提供了一个最底层的支持。
-Intelligent machines in the current hardware on many dual-cpu architecture of a baseband processor are mainly deal with digital signals, voice signals, and GSM codecs communication protocol, and the other is the application processor, operating system and applications running procedures. Baseband processor, radio frequency and other peripheral chips, as a module, as a GSM/GPRS modem, provided by AT command interface. Application of network needs is a hot spot, and most of the current GSM module can support GPRS function. Application processor through the AT command set and functionality with GPRS wireless communication module, in order to achieve the application of the network provides a bottom support.
- 2022-04-25 13:01:55下载
- 积分:1
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在Viusal Basic6.0中,通过DDE方式,实现与MATLAB的通讯。无论在VB操作数据库应用、控件的使用、MATLAB的图形操作方面,对初学者来说都是...
在Viusal Basic6.0中,通过DDE方式,实现与MATLAB的通讯。无论在VB操作数据库应用、控件的使用、MATLAB的图形操作方面,对初学者来说都是难得的典范。-In Viusal Basic6.0 through DDE way communication with MATLAB. Operation in VB database application, the use of controls, MATLAB graphics operation, for beginners is a rare example.
- 2022-08-20 11:56:58下载
- 积分:1
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802[1].11无线网络权威指南.part1
802[1].11无线网络权威指南.part1-802 [1] .11 authoritative guide to the wireless network. Part1
- 2022-10-02 11:05:08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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“很难找到“充分的描述由很多。用年的ContactID协议
"Hard to find" full description of ContactID protocol from Ademco used by many home security devices to send messages to CMS (Central Monitoring Station) about security events.
Has full technical description and can be used to easy make CMS communication module that sends info from your alarm system to CMS station.
- 2022-06-15 22:28:53下载
- 积分:1
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modbus应用的典型例子,从设备slave应用程序,希望初学者看一看...
modbus应用的典型例子,从设备slave应用程序,希望初学者看一看-a typical example of the application of modbus, slave application from the device, hoping to see beginners
- 2022-01-26 02:07:15下载
- 积分:1
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symbian for c++ 系统声音调用例子
一个用vc编写的调度算法程序-vc prepared with a scheduling algorithm procedures
- 2022-03-14 19:26:07下载
- 积分:1
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TGN信道模型
tgn channel model special
- 2022-02-03 07:23:35下载
- 积分:1