SETI strategy with FAST fractality

作     者：Yi-Xuan Chen Wen-Fei Liu Zhi-Song Zhang Tong-Jie Zhang Yi-Xuan Chen;Wen-Fei Liu;Zhi-Song Zhang;Tong-Jie Zhang

作者机构：Department of AstronomyBeijing Normal UniversityBeijing 100875China College of Physics and Electronic EngineeringQilu Normal UniversityJinan 250200China National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2021年第21卷第7期

页      面：234-240页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.11929301) National Key R&D Program of China(2017YFA0402600) 

主　　题：SETI FAST fractal antennae 

摘      要：We applied the Koch snowflake fractal antenna in planning calibration of the Five-hundred-meter Aperture Spherical radio Telescope(FAST), hypothesizing second-order fractal primary reflectors can optimize the orientated sensitivity of the telescope. Meanwhile, on the grounds of NASA Science Working Group Report in 1984, we reexamine the strategy of Search for Extraterrestrial Intelligence(SETI).A mathematical analysis of the radar equation will be performed in the first section, aiming to make it convenient to design a receiver system that can detect activities of an extraterrestrial civilization, according to the observable region of the narrowband. Taking advantage of the inherent potential of FAST, we simulate the theoretical detection of a Kardashev Type I civilization by a snowflake-selected reflecting area(Drake et al.).