Sensitivity of Antenna Arrays for Long-Wavelength Radio Astronomy

• Published in: IEEE transactions on antennas and propagation Vol. 59; no. 6; pp. 1855 - 1863
• Main Author: Ellingson, S W
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2011; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Antenna array; Antenna arrays; Array signal processing; beamforming; Correlation; Noise; Radio astronomy; Radio telescopes; Sensitivity

A number of new and planned radio telescopes will consist of large arrays of low-gain antennas operating at frequencies below 300 MHz. In this frequency regime, Galactic noise can be a significant or dominant contribution to the total noise. This, combined with mutual coupling between antennas, make...