天文学进展2017,Vol.35Issue(4):473-480,8.DOI:10.3969/j.issn.1000-8349.2017.04.07
中国射电天文频率保护进展
Protection Progress on Radio Astronomy Frequencies in China
摘要
Abstract
Due to the weakness of cosmic radio signal measured, radio astronomy is very vulnerable to radio frequency interference (RFI) from active services. According to the limi-tation of spectrum resource and increasing deterioration of radio environment around the site of radio telescope, the continuous development of domestic radio astronomy has been affected. Based on the study on International Telecommunication Union (ITU) Radio Regu-lation and RFI measurements at radio astronomical stations, the RFI situation of the local radio environment around the stations has been analyzed. Moreover, the RFI measurement system has also been developed. For several radio telescopes, especially large radio telescope, the radio quiet zones have been established, which enables the protection of the astronomical observation from RFI and assure the scientific output of the telescopes.关键词
射电天文业务/无线电干扰/无线电宁静区Key words
radio astronomy service/radio frequency interference/radio quiet zone分类
天文与地球科学引用本文复制引用
张海燕..中国射电天文频率保护进展[J].天文学进展,2017,35(4):473-480,8.基金项目
国家自然科学基金(11473043) (11473043)
天文专项(2015-2016) (2015-2016)