Skip to main content
Article thumbnail
Location of Repository

Detection of fast radio transients with multiple stations: a case study using the Very Long Baseline Array

By David R. Thompson, Kiri L. Wagstaff, Walter Brisken, Adam T. Deller, Walid A. Majid, Steven J. Tingay and Randall B. Wayth


Recent investigations reveal an important new class of transient radio phenomena that occur on sub-millisecond timescales. Often transient surveys' data volumes are too large to archive exhaustively. Instead, an on-line automatic system must excise impulsive interference and detect candidate events in real-time. This work presents a case study using data from multiple geographically distributed stations to perform simultaneous interference excision and transient detection. We present several algorithms that incorporate dedispersed data from multiple sites, and report experiments with a commensal real-time transient detection system on the Very Long Baseline Array (VLBA). We test the system using observations of pulsar B0329+54. The multiple-station algorithms enhanced sensitivity for detection of individual pulses. These strategies could improve detection performance for a future generation of geographically distributed arrays such as the Australian Square Kilometre Array Pathfinder and the Square Kilometre Array.Comment: 12 pages, 14 figures. Accepted for Ap

Topics: Astrophysics - Instrumentation and Methods for Astrophysics
Year: 2011
DOI identifier: 10.1088/0004-637X/735/2/98
OAI identifier:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.