The generalized spectral kurtosis estimator

Document Type

Letter to the Editor

Publication Date

7-1-2010

Abstract

Due to its conceptual simplicity and its proven effectiveness in real-time detection and removal of radio frequency interference (RFI) from radio astronomy data, the spectral kurtosis (SK) estimator is likely to become a standard tool of a new generation of radio telescopes. However, the SK estimator in its original form must be developed from instantaneous power spectral density estimates, and hence cannot be employed as an RFI excision tool downstream of the data pipeline in existing instruments where any time averaging is performed. In this Letter, we develop a generalized estimator with wider applicability for both instantaneous and averaged spectral data, which extends its practical use to a much larger pool of radio instruments. © 2010 The Authors. Journal compilation © 2010 RAS.

Identifier

79952472165 (Scopus)

Publication Title

Monthly Notices of the Royal Astronomical Society Letters

External Full Text Location

https://doi.org/10.1111/j.1745-3933.2010.00882.x

ISSN

17453933

First Page

L60

Last Page

L64

Issue

1

Volume

406

Grant

0908344

Fund Ref

National Science Foundation

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