Calibration and imaging challenges at low radio frequencies: An overview of the state of the art

Many scientific deliverables of the next generation low frequency radio telescopes require high dynamic range imaging. Next generation telescopes under construction indeed promise at least a ten-fold increase in the sensitivity compared with existing telescopes. The projected achievable RMS noise in the images from these telescopes is in the range of 1--10$μ$Jy/beam corresponding to typical imaging dynamic ranges of $10^{6-7}$. High imaging dynamic range require removal of systematic errors to h...