具有FAST分形的SETI策略
SETI strategy with FAST fractality
摘要：
将Koch雪花分形天线应用于500米口径球面射电望远镜（FAST）的规划定标中，假设二阶分形主反射面可以优化望远镜的定向灵敏度。同时，以1984年NASA科学工作组报告为依据，重新审视了搜寻地外文明（SETI）的战略。第一节将对雷达方程进行数学分析，目的是便于设计一种接收器系统，根据窄带的可观测区域探测地外文明的活动。利用FAST的固有潜力，我们模拟了由雪花选择的反射区域对Kardashev I型文明的理论探测。
英文摘要：
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.
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