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  • Research Article
  • Open Access

Quickest Detection of a Random Signal in Background Noise Using a Sensor Array

EURASIP Journal on Advances in Signal Processing20052005:360150

  • Received: 2 December 2003
  • Published:


The problem of detecting the onset of a signal impinging at an unknown angle on a sensor array is considered. An algorithm based on parallel CUSUM tests matched to each of a set of discrete beamforming angles is proposed. Analytical approximations are developed for the mean time between false alarms, and for the detection delay of this algorithm. Simulations are included to verify the results of this analysis.

Keywords and phrases

  • sensor array
  • quickest detection
  • angle-of-arrival estimation

Authors’ Affiliations

Zargis Medical Corp., Princeton, NJ 08540, USA
Department of Electrical Engineering, Princeton University, Princeton, NJ 08544, USA


© Oskiper and Poor 2005