动态频率选择测试方法与系统解决方案

发布时间：2018-08-24 15:30

【摘要】：随着无线电通信技术的迅猛发展,各类工作在2.4 GHz ISM频段的电子产品数量呈急速上升状态,各设备之间的干扰情况频发,频段内日益拥堵。面对此问题,许多厂家相继开发工作在更高频段的无线电通信产品来缓解这一情况。为顺应这一趋势,各国政府也陆续开放了5GHz频段的使用。我国工信部也于2012年底发布了关于5150-5350MHz频段无线接入系统频率使用通知。其中特别增加了对动态频率选择(DFS:Dynamic Frequency Selection)特性的检测要求。5GHz作为全球雷达系统的工作频段,有其特殊性,如何使工作在这一频段的无线电通信设备正常工作,而又不对雷达系统造成干扰,这成为型号核准检测工作新的任务。本论文对动态频率选择测试方法与系统解决方案进行了深入的研究。此课题是基于无线电发射设备型号核准检测过程中,对于DFS特性的检测要求展开的。论文在深入研究美国联邦通信委员会、欧洲电信标准化协会和其它相关的国家标准基础上,对此波段雷达信号特点进行了分析,设计了动态频率选择测试方法与系统解决方案,并基于实验室现有设备完成了DFS检测系统的硬件搭建,进行了系统软件设计。最后,通过选取实测产品进行了检测系统的验证。测试结果表明,此套自动测试系统满足我国型号核准工作的检测需求,符合国家检测标准,并且兼容了多国测试标准要求。该检测系统对于今后其它频段的DFS检测也具有一定的借鉴作用。
[Abstract]:With the rapid development of radio communication technology, the number of electronic products working in the 2. 4 GHz ISM band is rising rapidly, the interference between the devices is frequent, and the frequency band is increasingly congested. Faced with this problem, many manufacturers have developed radio communication products in higher frequency band to alleviate this situation. In order to comply with this trend, governments have also opened up the use of 5GHz frequency band one after another. China's Ministry of Industry and Information Technology also issued a notice on the frequency of 5150-5350MHz wireless access system at the end of 2012. In particular, the detection requirement for dynamic frequency selection (DFS:Dynamic Frequency Selection) is increased. 5GHz is used as the working frequency band of the global radar system. It has its particularity. How to make the radio communication equipment working in this band work normally, Without jamming the radar system, this becomes a new task of model approval and detection. In this paper, the dynamic frequency selection testing methods and system solutions are studied. This project is based on the requirements of DFS characteristics in the process of model approval and detection of radio transmission equipment. Based on the in-depth study of the Federal Communications Commission, the European Telecommunications Standardization Association and other relevant national standards, this paper analyzes the characteristics of radar signals in this band, and designs a dynamic frequency selection test method and a system solution. And based on the existing equipment in the laboratory, the hardware of the DFS detection system is built, and the system software is designed. Finally, the testing system is verified by selecting the measured products. The test results show that the automatic test system can meet the requirements of China's model approval and meet the national test standards and meet the requirements of multi-country test standards. This detection system can also be used for reference for DFS detection in other frequency bands in the future.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN830

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