Title :
Shapelets and related techniques in radio-astronomical imaging
Author :
Yatawatta, Sarod
Author_Institution :
Kapteyn Inst., Univ. of Groningen, Groningen, Netherlands
Abstract :
We present the use of orthonormal basis functions, in particular, shapelets and prolate spheroidal wave functions, in radio astronomical imaging. By using such methods, it is possible to overcome some limitations of traditional pixel based image deconvolution. Therefore, such techniques will enable us to increase the achievable imaging dynamic range thus paving the way for novel scientific results. We give an overview of the current state of the art of such methods and provide examples of its use.
Keywords :
astronomical image processing; radioastronomical techniques; wave functions; orthonormal basis functions; pixel based image deconvolution; prolate spheroidal wave functions; radioastronomical imaging; shapelets; Calibration; Data models; Deconvolution; Dynamic range; Imaging; Noise; Wave functions;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6051224
