毕业论文 fsk调制技术及其matlab仿真.doc
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毕业论文 fsk调制技术及其matlab仿真,中文摘要：移频键控（fsk）是数据通信中最常用的一种调制方式。fsk方法简单易于实现，并且解调不需要恢复本地载波，可以异步传输，抗噪声和抗衰落性能较强。缺点是占用频带较宽，频带利用不够经济。fsk主要应用于低中速数据传输，以及衰落信道和频带较宽的信道中。matlab 可以用来进行通信领域的研究、开发、系统设计和仿真。阐...
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中文摘要：移频键控（FSK）是数据通信中最常用的一种调制方式。FSK方法简单易于实现，并且解调不需要恢复本地载波，可以异步传输，抗噪声和抗衰落性能较强。缺点是占用频带较宽，频带利用不够经济。FSK主要应用于低中速数据传输，以及衰落信道和频带较宽的信道中。MATLAB 可以用来进行通信领域的研究、开发、系统设计和仿真。阐述了计算机仿真的发展概况，及其重要意义，着重介绍了MATLAB的基础知识和其重要工具--动态仿真软件SIMULINK的基本操作。利用MATLAB中的仿真工具SIMULINK建立了FSK仿真模型，并对仿真模型进行了测试,经结果分析表明，仿真结果与理论基本一致。
关键词 ： FSK ； MATLAB ； 仿真 ； 调制解调
Title : FSK modulation system design based on MATLAB
Abstract: Frequency Shift Keying (FSK) is a data communication most commonly used as a
modulation mode. FSK method is simple, easy to implement, and demodulation not restore local
carrier, ATM, Anti-noise and anti-fading strong performance. The drawback is a wide band
occupation, the economy enough bandwidth utilization. Hence, FSK is mainly applied into data transport in low or medium rate and in fading channel or channels with relative wide bandwidth. MATLAB can be used for communications in the research, development, system design and simulation. Expounded on the development of computer simulation profiles and its significance MATLAB highlights of the basic knowledge and its important tools -- dynamic simulation software SIMULINK base the operation. Using MATLAB Simulink simulation tools were established FSK modulation model coherent, as well as simulation models were tested, the results show that the simulation results agreed with the basic theory.
Keywords： FSK ; MATLAB ; simulation ; modulation; demodulation
目录
第1章 绪论 5
1.1课题研究背景方法及目的 6
1.2 课题设计要求 7
1.3 课题设计步骤 7
1.4 MATLAB概述 7
第2章 FSK系统的理论综述 13
2.1数字调制解调 13
2.2 频移键控（FSK） 14
2.2.1 FSK的调制原理 14
2.2.2 FSK的解调原理 15
第3章 FSK在MATLAB环境下的仿真 16
3.1FSK在MATLAB环境下的仿真过程与结果 15
3.2 FSK在MATLAB环境下的分析 19
3.2.1 FSK在MATLAB环境下的优劣 19
3.2.2 FSK的解调实现 19
3.2.3 FSK信噪比对误码率的影响分析 21
第4章 总结 23
致谢 24
参考文献 25
附录 26
关键词 ： FSK ； MATLAB ； 仿真 ； 调制解调
Title : FSK modulation system design based on MATLAB
Abstract: Frequency Shift Keying (FSK) is a data communication most commonly used as a
modulation mode. FSK method is simple, easy to implement, and demodulation not restore local
carrier, ATM, Anti-noise and anti-fading strong performance. The drawback is a wide band
occupation, the economy enough bandwidth utilization. Hence, FSK is mainly applied into data transport in low or medium rate and in fading channel or channels with relative wide bandwidth. MATLAB can be used for communications in the research, development, system design and simulation. Expounded on the development of computer simulation profiles and its significance MATLAB highlights of the basic knowledge and its important tools -- dynamic simulation software SIMULINK base the operation. Using MATLAB Simulink simulation tools were established FSK modulation model coherent, as well as simulation models were tested, the results show that the simulation results agreed with the basic theory.
Keywords： FSK ; MATLAB ; simulation ; modulation; demodulation
目录
第1章 绪论 5
1.1课题研究背景方法及目的 6
1.2 课题设计要求 7
1.3 课题设计步骤 7
1.4 MATLAB概述 7
第2章 FSK系统的理论综述 13
2.1数字调制解调 13
2.2 频移键控（FSK） 14
2.2.1 FSK的调制原理 14
2.2.2 FSK的解调原理 15
第3章 FSK在MATLAB环境下的仿真 16
3.1FSK在MATLAB环境下的仿真过程与结果 15
3.2 FSK在MATLAB环境下的分析 19
3.2.1 FSK在MATLAB环境下的优劣 19
3.2.2 FSK的解调实现 19
3.2.3 FSK信噪比对误码率的影响分析 21
第4章 总结 23
致谢 24
参考文献 25
附录 26
