射电天文研究室知识库

射电望远镜具有极高的系统灵敏度，且台址内电子设备众多，台站外无线通信业务不断扩张，电磁环境复杂；有效的电波环境测试及分析对台站消干扰策略、屏蔽设计、无线电管理提供重要依据。针对南山台站电波环境进行了详细的测试，分析了台站电波环境频谱的主要特征及随时间变化趋势；基于电波环境频谱特征，通过测试确定了台站内主要干扰源，并对台站内部主要干扰区域的干扰设备进行测试诊断，确定了主要的干扰设备。结合南山台站仪器设备分布现状及实际的干扰测试，给出了台站屏蔽防护方案的一些考虑，为后期的屏蔽改造工作奠定基础。

Radio telescope has the extremely high system sensitivity, however, all kinds of emission from on-site electrical devices and on-site communication business affect the observation data. Effectively monitoring for spectrum and data analyzing can give great supports to spectrum management, shield designing, interference mitigation for observation. A detailed radio environmental at NSRT (Nan Shan Radio Telescope) site was measured, and the spectral characteristics are analyzed. Based on the spectral characteristics and practical testing, ensuring that main narrow interference comes from our own devices zones at site. Then the main interference devices were determined through interference searching at devices zones. Finally, the various shieling engineering problems are considered on the basis of devices distribution at NSRT and interference characteristics, which will provide technical supports for shielding project implementation in the future.