We describe a theoretical procedure for analyzing astronomical phased arrays with overlapping beams and apply the procedure to simulate a simple example. We demonstrate the effect of overlapping beams on the number of degrees of freedom of the array and on the ability of the array to recover a source. We show that the best images are obtained using overlapping beams, contrary to common practice, and show how the dynamic range of a phased array directly affects the image quality.
© 2008 Optical Society of America
Original Manuscript: August 8, 2007
Manuscript Accepted: November 26, 2007
Published: March 26, 2008
George Saklatvala, Stafford Withington, and Michael P. Hobson, "Simulations of astronomical imaging phased arrays," J. Opt. Soc. Am. A 25, 958-967 (2008)