论文标题
模拟高级分辨率无线电镜观测
Simulating high-time resolution radio-telescope observations
论文作者
论文摘要
我们描述了一个新的软件包，用于模拟射电望远镜中的通道的高级分辨率数据流。该软件考虑了观察策略，接收器系统和数字化，从而模拟了望远镜和观察系统的数据。对脉冲星，快速无线电爆发和耀斑星的签名进行了建模，包括频率依赖性效果，例如散射和闪烁。我们还使用样条曲线和图像模拟了更多通用信号。射频干扰的模型包括来自卫星，地面发射器和冲动的宽带信号的信号。模拟信号也可以注入实际数据集中。该软件的使用包括生产机器学习培训数据集，开发和测试新算法以搜索异常模式并表征处理管道。
We describe a new software package for simulating channelised, high-time resolution data streams from radio telescopes. The software simulates data from the telescope and observing system taking into account the observation strategy, receiver system and digitisation. The signatures of pulsars, fast radio bursts and flare stars are modelled, including frequency-dependent effects such as scattering and scintillation. We also simulate more generic signals using spline curves and images. Models of radio frequency interference include signals from satellites, terrestrial transmitters and impulsive, broadband signals. The simulated signals can also be injected into real data sets. Uses of this software include the production of machine learning training data sets, development and testing of new algorithms to search for anomalous patterns and to characterise processing pipelines.
