Investigations of radar interference to satellite earth stations and terrestrial microwave communication sites
Investigations of radar interference to satellite earth stations and terrestrial microwave communication sites
复制标题
雷达对卫星地球站和地面微波通信站点的干扰调查
DOI：
10.1109/isemc.1998.750061
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
F. Sanders
中科院分区：
文献类型：
--
作者：
B. J. Ramsey;F. Sanders
固定卫星服务地面站和地面固定微波通信链路经常受到在相邻频带工作的雷达系统的电磁干扰。本文总结了国家电信和信息管理局（NTIA）和NTIA电信科学研究所（ITS）对大量此类干扰案例的调查结果。总结了当前限制雷达带外辐射的联邦标准。NTIA/ITS调查发现，由带外雷达辐射和非线性接收机响应引起的干扰情况大致相同。由于这两种干扰机制的缓解方法完全不同，因此在采取缓解措施之前确定干扰机制至关重要。缓解程序进行了说明，并讨论了识别干扰雷达所需的关键参数。
Fixed-satellite service earth stations and terrestrial fixed-microwave communication links often experience electromagnetic interference from radar systems operating in adjacent frequency bands. This paper summarizes the results from investigations into a large number of such interference cases by the National Telecommunications and Information Administration (NTIA) and the NTIA Institute for Telecommunication Sciences (ITS). Current Federal standards that limit radar out-of-band emissions are summarized. NTIA/ITS investigations have found approximately equal numbers of interference cases caused by out-of-band radar emissions and nonlinear receiver responses. Since mitigation methods are completely different for these two interference mechanisms, it is crucial that the interference mechanism be identified before mitigation efforts are undertaken. Mitigation procedures are described, and critical parameters necessary for the identification of interfering radars are discussed.