Radio Frequency Interference Site Survey for Thai Radio Telescopes

Radio Frequency Interference Mitigation in Radio Astronomy

Radio Frequency Interference

We describe the nature of the interference challenges facing radio astronomy in the next decade. These challenges will not be solved by regulation only, negotiation and mitigation will become vital. There is no silver bullet for mitigating against interference. A successful mitigation approach is most likely to be a hierarchical or progressive approach throughout the telescope and signal condit...

A broad-band flux scale for low-frequency radio telescopes

We present parametrized broad-band spectral models valid at frequencies between 30 and 300 MHz for six bright radio sources selected from the 3C survey, spread in right ascension from 0 to 24 h. For each source, data from the literature are compiled and tied to a common flux density scale. These data are then used to parametrize an analytic polynomial spectral calibration model. The optimal pol...

Radio Frequency Interference and Detection of Fast Radio Transients

Exploring the transient radio sky is one of the major science drivers for several upcoming and planned radio telescopes, including the Square Kilometer Array (SKA). The detection of transient signals, particularly of relatively short durations, can however be considerably hampered by the prevalent and ever growing problem of radio frequency interference (RFI) in radio astronomy. With the goal o...

Exascale Real-Time Radio Frequency Interference Mitigation

Radio Frequency Interference (RFI) mitigation is extremely important to take advantage of the vastly improved bandwidth, sensitivity, and field-of-view of exascale telescopes. For current instruments, RFI mitigation is typically done offline, and in some cases (partially) manually. At the same time, it is clear that due to the high bandwidth requirements, RFI mitigation will have to be done aut...