Statistically Stable Estimates of Variance in Radioastronomical Observations as Tools for RFI Mitigation

摘要

A selection of statistically stable (robust) algorithms for data variancecalculating has been made. Their properties have been analyzed via computersimulation. These algorithms would be useful if adopted in radio astronomyobservations in the presence of strong sporadic radio frequency interference(RFI). Several observational results have been presented here to demonstratethe effectiveness of these algorithms in RFI mitigation.