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

UYSAL C., FİLİK T.

22nd IEEE Signal Processing and Communications Applications Conference (SIU), Trabzon, Türkiye, 23 - 25 Nisan 2014, ss.1845-1848 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/siu.2014.6830612
  • Basıldığı Şehir: Trabzon
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1845-1848
  • Anahtar Kelimeler: spread spectrum communications, signal detection, covariance matrices, sensor arrays, SPREAD-SPECTRUM SIGNALS
  • Anadolu Üniversitesi Adresli: Evet

Özet

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.