StarWatch 3.0: Visualizing Wave Patterns of Phased Array Radio Telescopes

S. Klimenko, Kira Konich, I. Nikitin, L. Nikitina
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Abstract

We extend our system for radio astronomical monitoring by a module for numerical modeling of real antennas, based on the laws of wave optics. We use far field approximation, suitable for phased array radio telescopes, searching deep space signals. We have implemented the main computation on GPU, achieving acceleration factor 52 and providing real time performance of the module. Visualization of the resulting wave patterns helps to separate true deep space signals from the near Earth satellite radio interference. In particular, we model in detail a scenario of a satellite signal coming through the side lobe of SETI ATA-42 telescope. Such signals can be responsible for the false alarms in monitoring procedures, used in searching for extraterrestrial intelligence. We also analyze a scenario of searching pulsar signals with BSA/LPI radio telescope and their separation from background radio interference.
StarWatch 3.0:相控阵射电望远镜波形可视化
基于波光学定律,我们通过一个实际天线数值模拟模块扩展了射电天文监测系统。我们使用远场近似,适用于相控阵射电望远镜,搜索深空信号。我们在GPU上实现了主要的计算,实现了52倍的加速,并提供了模块的实时性能。结果波形的可视化有助于从近地卫星无线电干扰中分离出真正的深空信号。特别地,我们详细地模拟了卫星信号通过SETI ATA-42望远镜旁瓣的情景。这样的信号可能会导致监测程序中的误报,用于寻找外星智慧。本文还分析了用BSA/LPI射电望远镜搜索脉冲星信号的场景及其与背景无线电干扰的分离。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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