Expectation Maximization-Based Detection in Range-Heterogeneous Weibull Clutter

Doyuran, Ulku; TANIK, YALÇIN

doi:10.1109/taes.2014.130209

Expectation Maximization-Based Detection in Range-Heterogeneous Weibull Clutter

Atıf İçin Kopyala

Doyuran U. C., TANIK Y.

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, cilt.50, sa.4, ss.3156-3166, 2014 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 50 Sayı: 4
Basım Tarihi: 2014
Doi Numarası: 10.1109/taes.2014.130209
Dergi Adı: IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.3156-3166
Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The problem of radar target detection in Weibull and range-heterogeneous clutter is considered. The clutter component in each range cell is modeled as an instance of a random variable belonging to one of several Weibull distributions. We use the expectation-maximization algorithm to estimate parameters of the distribution and set the threshold accordingly. The performance of the proposed receiver is investigated through computer simulations and observed to be superior compared with numerous well-known methods.