文件名称:
基于Matlab的跳频信号发生器的设计(毕业设计)
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上传时间: 2009-10-06
详细说明： 摘要：随着CDMA扩频通信技术在民用通信中的深入应用和不断渗透，以及在卫星通信、深空通信、武器制导、GPS全球定位系统和跳频通信等民用和国防军事通信的强烈需求下，扩频通信技术已占据着越来越重要的地位。而跳频通信正是扩频通信的一种重要实现方式，它具有抗干扰、抗衰落、抗截获能力，兼有能多址组网应用等诸多优点。在现代军事通信尤其是战术抗干扰电台当中，跳频通信技术获得了广泛的应用。 本课题利用Matlab软件对跳频通信原理进行分析，主要进行了以下几个方面的研究工作： 1．通过对扩频通信以及跳频通信相关方面知识的了解，进一步掌握 跳频信号发生器设计的关键技术。主要包括：跳频信号的发送和接收，跳频图案的设计，BPSK调制原理。 2．利用Matlab软件，实现了跳频频谱的生成。主要包括：载波信号的产生，BPSK调制信号的产生，跳频图案及频谱的生成（设定6个频率段作为跳频图案，根据BPSK信号和跳频图案的运算产生频谱）。 经过上面的设计，不仅可以在理论方面得到加强，而且能通过软件很好的实现功能，这样就达到了跳频抗干扰的目的。 关键字：扩频通信 跳频通信 BPSK调制 Matlab 指导老师签字： Based on the Matlab the frequency-hopping signal generator Design Students Name : Liao Feng Class : 05804320 Supervisor : Zou Qiong Abstract : With the CDMA spread spectrum communication technology in the civilian communications applications and continuous penetration depth, as well as in satellite communications, deep space communications, weapons guidance, GPS global positioning systems and frequency hopping communications and other civilian and military communications for national defense under the strong demand , spread-spectrum communication technology has become an increasingly important position. Communication and frequency hopping spread spectrum communication is an important way to achieve, it has anti-jamming, anti-fading, anti-interception capabilities, both to the application of multi-access network, and many other advantages. In the modern tactical military communications, especially radio interference, the frequency-hopping communication technologies to obtain a wide range of applications. The subject of the use of Matlab software, an analysis of the principle of frequency hopping communications, mainly for the following research work: 1.Through the frequency-hopping spread-spectrum communications and communications-related aspects of knowledge, and further frequency-hopping signal generator designed to master the key technology. Include: frequency hopping to send and receive signals, the design of frequency-hopping pattern, BPSK modulation principle. 2. The use of Matlab software, to achieve the generation of a spectrum frequency hopping. Include: the selection of the carrier signal, BPSK modulation signal generation, frequency-hopping pattern and the generation of the spectrum (set six frequency bands as frequency hopping patterns, according to BPSK signals and frequency hopping pattern of the computing spectrum generated). Through the above design, not only in theory, be strengthened, and through the realization of software functions very well, so that to achieve a frequency-hopping anti-jamming purposes. ...展开收缩
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