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Astrophysics > Instrumentation and Methods for Astrophysics

arXiv:1611.09756 (astro-ph)
[Submitted on 29 Nov 2016]

Title:A Framework for Assessing the Performance of Pulsar Search Pipelines

Authors:E. van Heerden, A. Karastergiou, S.J. Roberts
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Abstract:In this paper, we present a framework for assessing the effect of non-stationary Gaussian noise and radio frequency interference (RFI) on the signal to noise ratio, the number of false positives detected per true positive and the sensitivity of standard pulsar search pipelines. The results highlight the necessity to develop algorithms that are able to identify and remove non-stationary variations from the data before RFI excision and searching is performed in order to limit false positive detections. The results also show that the spectrum whitening algorithms currently employed, severely affect the efficiency of pulsar search pipelines by reducing their sensitivity to long period pulsars.
Comments: 18 pages, 16 figures; accepted to MNRAS ref. MN-16-1993-MJ.R2
Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM)
Cite as: arXiv:1611.09756 [astro-ph.IM]
  (or arXiv:1611.09756v1 [astro-ph.IM] for this version)
  https://doi.org/10.48550/arXiv.1611.09756
Related DOI: https://doi.org/10.1093/mnras/stw3068

Submission history

From: Elmarie Van Heerden [view email]
[v1] Tue, 29 Nov 2016 17:56:24 UTC (5,242 KB)
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