Detection of Low Probability of Intercept Signals in Low SNR Using Multichannel Sensor Arrays


22nd IEEE Signal Processing and Communications Applications Conference (SIU), Trabzon, Turkey, 23 - 25 April 2014, pp.1845-1848 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu.2014.6830612
  • City: Trabzon
  • Country: Turkey
  • Page Numbers: pp.1845-1848
  • Keywords: spread spectrum communications, signal detection, covariance matrices, sensor arrays, SPREAD-SPECTRUM SIGNALS
  • Anadolu University Affiliated: Yes


In this paper, a method is proposed for the detection of low probability of intercept, LPI signals in high noise without prior knowledge and assumption using spatially distributed multichannel wideband sensor array. The proposed detection method uses eigenvalue ratios (EVR) of wideband spatial covariance matrix as test statistic. It is shown in simulations that the proposed method can detect long code spread spectrum signals in a stable way even in low SNR In addition, it is also shown in simulations that the proposed method is inherently resistive to the multipath reflections.