31 citations · 38 across the 4 of their papers we have counts for
7 papers
Sidelobe Modification for Reflector Antennas by Electronically-Reconfigurable Rim Scattering
S. W. Ellingson, R. Sengupta
Dynamic modification of the pattern of a reflector antenna system traditionally requires an array of feeds. This paper presents an alternative approach in which the scattering from…
Characterization and Mitigation of Sinusoidal Carrier Modulation Signals by Short-Term Sinusoidal Analysis
S. W. Ellingson
Most radio signals can be described as a form of sinusoidal carrier modulation. These signals have the property that when observed over a sufficiently short period of time, the wav…
GBTrans: A commensal search for radio pulses with the Green Bank twenty metre telescope
Golnoosh Golpayegani, Duncan R. Lorimer, Steven W. Ellingson +7
We describe GBTrans, a real-time search system designed to find fast radio bursts (FRBs) using the 20-m radio telescope at the Green Bank Observatory. The telescope has been part o…
Practical Limits in the Sensitivity-Linearity Trade-off for Radio Telescope Front Ends in the HF and VHF-low Bands
R. H. Tillman, S. W. Ellingson, J. Brendler
Radio telescope front ends must have simultaneously low noise and sufficiently-high linearity to accommodate interfering signals. Typically these are opposing design goals. For mod…
First Light for the First Station of the Long Wavelength Array
G. B. Taylor, S. W. Ellingson, N. E. Kassim +32
The first station of the Long Wavelength Array (LWA1) was completed in April 2011 and is currently performing observations resulting from its first call for proposals in addition t…
Searching for Transient Pulses with the ETA Radio Telescope
Cameron D. Patterson, Steven W. Ellingson, Brian S. Martin +4
Array-based, direct-sampling radio telescopes have computational and communication requirements unsuited to conventional computer and cluster architectures. Synchronization must be…