论文标题
Tricolor：Meerkat的优化Sumthreshold Flagger
Tricolour: an optimized SumThreshold flagger for MeerKAT
论文作者
论文摘要
我们提出了Tricolor，这是一种用于射频干扰缓解宽带的软件包，细化了Meerkat相关数据。 Meerkat Passband受到卫星，移动，飞机和陆生应答器的干扰的严重影响。加上在208kHz通道分辨率下的典型数据速率超过100 GIB/HR，缓解措施带来了重大的处理挑战。我们的旗手具有高度可配置的，并行和优化的，采用DASK和NUMBA技术来实现广泛使用的Sumthreshold和MAD干扰检测算法。我们发现，在现代双插入Intel Xeon服务器上，典型的L-Band标记策略可以以超过400 GIB/HR的速度处理典型的208KHz通道数据集。
We present Tricolour, a package for Radio Frequency Interference mitigation of wideband finely channelized MeerKAT correlation data. The MeerKAT passband is heavily affected by interference from satellite, mobile, aircraft and terrestrial transponders. Coupled with typical data rates in excess of 100 GiB/hr at 208kHz channelization resolution, mitigation poses a significant processing challenge. Our flagger is highly configurable, parallel and optimized, employing Dask and Numba technologies to implement the widely used SumThreshold and MAD interference detection algorithms. We find that typical 208kHz channelized datasets can be processed at rates in excess of 400 GiB/hr for a typical L-band flagging strategy on a modern dual-socket Intel Xeon server.
