论文标题:直放站的理论研究与干扰分析
Theory and Disturb Analysis of Repeater
论文作者
论文导师 张海林,论文学位 硕士,论文专业 军事通信学
论文单位 西安电子科技大学,点击次数 216,论文页数 73页File Size3643K
2006-01-01论文网 http://www.lw23.com/lunwen_183182137/
Repeater; Disturb; GSM; CDMA
随着移动通信的迅速发展，用户对通话质量的要求也越来越高。直放站能够有效地解决弱信号区、盲区、边远地区移动通信问题，提高服务质量。而在实际应用中，直放站的干扰不同程度的影响着系统自身和其他设备的性能，但对干扰的分析没有把理论和实际很好的结合起来，还不够成熟和系统化。作者在一定的理论资料和实习经验的基础上，从理论上分析了直放站干扰的情况。 该论文的主要内容包括：首先，系统介绍了GSM移动通信直放站，CDMA移动通信直放站和GSM／CDMA光纤直放站，详细了解了各自的性能及特点；其次，介绍了直放站在室内覆盖系统中的工作参数；再次，简要介绍了移动通信系统的干扰及产生原因；最后，具体分析了几种常见干扰情况，分析了干扰产生的原因，并根据理论分析提出了解决办法。
Since mobile communication has been well developed, the high quantity services is also expected by mobile users, so repeaters, which amplify the coverage of both analog and digital communication base stations, have been popularly used by mobile communication providers. A repeater is a device that receives a digital or analog signal on an electromagnetic or optical transmission medium and regenerates the signal along the next leg of the medium. A series of repeaters make possible the extension of signals over weak signal areas, uncovered areas and far distance. However, in reality, repeaters more or less disturb the capabilities of themselves and other equipments, due to people do not combine theory with practice properly and systematically. Base on reading concerned literature and actual working experience, the writer has issued new solutions on common disturbed conditions of repeaters after professional analysis.The main contents of this essay include: introduction of the parameters of repeaters indoor coverage system. And systematically describes the GSM and CDMA mobile communication repeater, GSM/CDMA fiber optical repeater. Details in each repeaters" features and capabilities. Moreover, it briefly states the reasons and solutions of disturb in mobile communication transmission. Finally, makes a concrete analysis of several common disturbed conditions.
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