The beamformer and correlator for the Large European Array for Pulsars
Journal
Date Issued
2017
Author(s)
Smits, R.
•
Bassa, C. G.
•
Janssen, G. H.
•
Karuppusamy, R.
•
Kramer, M.
•
Lee, K. J.
•
Liu, K.
•
McKee, J.
•
•
Purver, M.
•
Sanidas, S.
•
Stappers, B. W.
•
Zhu, W. W.
Abstract
The Large European Array for Pulsars combines Europe's largest radio telescopes to form a tied-array telescope that provides high signal-to-noise observations of millisecond pulsars (MSPs) with the objective to increase the sensitivity of detecting low-frequency gravitational waves. As part of this endeavor we have developed a software correlator and beamformer which enables the formation of a tied-array beam from the raw voltages from each of telescopes. We explain the concepts and techniques involved in the process of adding the raw voltages coherently. We further present the software processing pipeline that is specifically designed to deal with data from widely spaced, inhomogeneous radio telescopes and describe the steps involved in preparing, correlating and creating the tied-array beam. This includes polarization calibration, bandpass correction, frequency dependent phase correction, interference mitigation and pulsar gating. A link is provided where the software can be obtained.
Volume
19
Start page
66
Issn Identifier
2213-1337
Ads BibCode
2017A&C....19...66S
Rights
open.access
File(s)![Thumbnail Image]()
![Thumbnail Image]()
Loading...
Name
1-s2.0-S2213133716300920-main.pdf
Description
[Administrators only]
Size
1.04 MB
Format
Adobe PDF
Checksum (MD5)
444e7140bce21b16d29044a61bab54ed
Loading...
Name
Astr. Comp. 1703.06438.pdf
Description
preprint
Size
937.61 KB
Format
Adobe PDF
Checksum (MD5)
93d1b1e6264f8131f48bcdefa4d8e4de