Radio-astronomical observations are increasingly contaminated by interference, and suppression techniques become essential. A powerful candidate for interference mitigation is adaptive spatial filtering. We study the effect of spatial filtering techniques on radio astronomical imaging. Current deconvolution procedures such as CLEAN are shown to be unsuitable to spatially filtered data, and the necessary corrections are derived. To that end, we reformulate the imaging (deconvolution/calibration) process as a sequential estimation of the locations of astronomical sources.
|Original language||American English|
|Number of pages||4|
|State||Published - 2001|
|Event||IEEE International Conference on Image Processing (ICIP) - Thessaloniki, Greece|
Duration: 7 Oct 2001 → 10 Oct 2001
|Conference||IEEE International Conference on Image Processing (ICIP)|
|Period||7/10/01 → 10/10/01|