Description: 仿真程序：
1． OSI参考模型的信息流动过程：设计一个仿真程序，说明OSI参考模型的信息流
动过程以及每层的作用。
2． 调制和解调：设计一个演示程序，说明调制解调器的调制和解调的过程
3． 信号的编码：设计一个仿真程序，演示信号的直接编码、曼彻斯特编码、差分曼
彻斯特编码；
4． 滑动窗口协议：设计一个仿真程序，说明滑动窗口协议的工作过程
5． 设计一个全双工停等协议
-simulation program : 1. OSI reference model of information flow : design a simulation program, Note OSI Reference Model processes and information flows for each role. 2. Modulation and demodulation : design a demonstration program that the modem modulation and demodulation process 3. The signal coding : a simulation program designed to demonstrate the direct signal coding, Manchester encoding, the difference Manchester encoding; 4. Sliding Window Protocol : design a simulation program that the sliding window protocols process 5. The design of a full-duplex shutdown agreement Platform: |
Size: 10011 |
Author:小龙 |
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Description: 一个有关GMSK基带调制和实现的MATLAB程序，自己编写的，请高手指教！
-on a GMSK baseband modulation and realization of the MATLAB program, the preparation of their own, experts advise. Platform: |
Size: 45245 |
Author:abbey200801 |
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Description: 仿真程序：
1． OSI参考模型的信息流动过程：设计一个仿真程序，说明OSI参考模型的信息流
动过程以及每层的作用。
2． 调制和解调：设计一个演示程序，说明调制解调器的调制和解调的过程
3． 信号的编码：设计一个仿真程序，演示信号的直接编码、曼彻斯特编码、差分曼
彻斯特编码；
4． 滑动窗口协议：设计一个仿真程序，说明滑动窗口协议的工作过程
5． 设计一个全双工停等协议
-simulation program : 1. OSI reference model of information flow : design a simulation program, Note OSI Reference Model processes and information flows for each role. 2. Modulation and demodulation : design a demonstration program that the modem modulation and demodulation process 3. The signal coding : a simulation program designed to demonstrate the direct signal coding, Manchester encoding, the difference Manchester encoding; 4. Sliding Window Protocol : design a simulation program that the sliding window protocols process 5. The design of a full-duplex shutdown agreement Platform: |
Size: 10240 |
Author:小龙 |
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Description: 这是PSK在MATLAB上调制的源程序！希望大家可以用的上！-This is the MATLAB PSK modulation on the source! Hope that we can use! Platform: |
Size: 1024 |
Author:邓见奎 |
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Description: 利用Matlab编程模擬实现,藍芽GFSK調變解調,希望供大家参考学习-Matlab simulation programming, Bluetooth GFSK modulation and demodulation and hope for your consideration study Platform: |
Size: 77824 |
Author:蔡宗軒 |
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Description: delphi 控制modem的代码,与调治解调器通信的好例子-delphi modem control code, and modulation demodulator good example of the communication Platform: |
Size: 93184 |
Author: |
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Description: 一个有关GMSK基带调制和实现的MATLAB程序，自己编写的，请高手指教！
-on a GMSK baseband modulation and realization of the MATLAB program, the preparation of their own, experts advise. Platform: |
Size: 45056 |
Author:abbey200801 |
Hits:
Description: 本程序为通信系统中的MSK调制程序，对于研究通信调制解调的人来说十分有用！-This procedure for the communications system MSK modulation process, the study of communication modem very useful for people! Platform: |
Size: 9216 |
Author:郭鲁川 |
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Description: 这是一个关于完成QAM调制的Matlab示例程序-This is a complete QAM modulation on the sample of Matlab procedures Platform: |
Size: 571392 |
Author:辛骏 |
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Description: cpm调制解调实现,关联长度为3，调制指数和进制都可调，解调使用vitebi方法-cpm modem realize, correlation length for the 3, modulation index and the band are adjustable demodulation method using vitebi Platform: |
Size: 636928 |
Author:terry |
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Description: This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz –
16,000Hz). The test files used as information files were text files.
This goal was attained both in an incoherent scheme and in a coherent scheme.
Build under Matlab code, our modem uses OFDM (orthogonal frequency division
multiplexing) modulation, synchronization by LMS sequence, channel estimation (no
equalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of
2 or 4. To optimize the probability of error, these symbols were mapped using Gray
mapping.
Report-This project aim was to build wireless software modem for data communicationbetween two computers using an acoustic interface in the voice frequency range (20Hz-20000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz-20000Hz) and the receiving antenna is a microphone (frequency response of: 100Hz-16000Hz). The test files used as information files were text files.This goal was attained both in an incoherent scheme and in a coherent scheme.Build under Matlab code, our modem uses OFDM ( orthogonal frequency divisionmultiplexing) modulation, synchronization by LMS sequence, channel estimation (noequalizer) via pilot tones. The symbols are either PSK or ASK for a constellation size of2 or 4. To optimize the probability of error, these symbols were mapped using Graymapping.Report Platform: |
Size: 559104 |
Author: |
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Description: 后续的接调制的程序，跟以前传的调制是在同样的环境下实现的-Follow-up modem access procedures, with the previous Chuan modulation is in the same environment to achieve Platform: |
Size: 1024 |
Author:kent |
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Description: QAM的调制解调完整仿真程序，带有GUI图形界面，便于观察仿真结果，推荐初学通讯的朋友下载-QAM modulation and demodulation of the integrity of the simulation program with a GUI graphical interface, easy to observe the simulation results, recommended beginner communications Friend Download Platform: |
Size: 99328 |
Author:陈世民 |
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Description: 本文档是关于手机调制技术的资料,能帮助理解手机调制技术的基本原理及过程-This document is on the phone modem information technology, can help understand the mobile phone of the basic principles of modulation techniques and processes Platform: |
Size: 984064 |
Author:刘俊 |
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Description: 本文首先研究可4一DQPsK调制解调系统中调制部分的基本原理和各个模块的设计方案，重点研究成形滤波器和直接数字频率合成器 (DireetoigitalFrequeneySynihesis，简称DDS)，并针对各个关键模块算法进行matlab设计仿真，展示仿真结果。其次，研究调制解调系统解调部分的基本原理和各个模块的设计方案，重点研究差分解调，数字下变频和位同步算法，也针对其各个关键模块进行算法的Matlab设计仿真。然后用Matlab对整个系统进行理论仿真，得出结论。在此基础
上，采用超高速集成电路硬件描述语言(VeryHighspeedxntegatedeireuitHardware
DescriptionLan即age，简称VHDL)在Altera公司 Quartusll7.0开发环境下设计并实现各个功能块，通过仿真来证明功能正确性。再次，用 Protel99SE进行印制电路板(Prinicircuitboard，简称PcB)设计，从原理图到封装，再到布局布线。焊接调试完毕后，将设计好的程序下载至FPGA主芯片。最后观察信号时域波形、星座图、眼图。本系统信源输入符号速率100kbPs，调制中频10MHz。测试结果验证系统的正确性，实现了从数字基带到中频的可4一DQPSK调制解调系统-This study is the first 4 1 DQPsK modem modulation system, part of the basic principles and design of each module, focusing on shaping filter and a direct digital frequency synthesizer (DireetoigitalFrequeneySynihesis, referred to as DDS), and to address all the key modules algorithm matlab design simulation to show simulation results. Second, the study of modulation and demodulation system demodulation part of the basic principles and design of each module, focusing on differential demodulation, digital down conversion and bit synchronization algorithm, but also for its various key module of the Matlab algorithm design and simulation. Then use the Matlab simulation of the entire system theory, reach a conclusion. On this basis,
, Using ultra-high speed integrated circuit hardware description language (VeryHighspeedxntegatedeireuitHardware
DescriptionLan that age, referred to as VHDL) in the Altera Corporation Quartusll7.0 development environment to design and implement the variou Platform: |
Size: 5457920 |
Author:cai |
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