UNIFORM AND NONUNIFORM V-SHAPED ISOTROPIC PLANAR ARRAYS

Filik T., TUNCER T. E.

IEEE Sensor Array and Multichannel Signal Processing Workshop, Darmstadt, Almanya, 21 - 23 Temmuz 2008, ss.99-103 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/sam.2008.4606833
  • Basıldığı Şehir: Darmstadt
  • Basıldığı Ülke: Almanya
  • Sayfa Sayıları: ss.99-103
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this study, isotropic V-shaped uniform and nonuniform arrays are considered. An isotropic array has the same value for the Cramer-Rao bound (CRB) for all direction of arrival (DOA) angles. The conditions for isotropic V-shaped arrays are presented and closed form expressions for V-shaped uniform and nonuniform arrays are found. These expressions return the V-angle for the array. Therefore, given the number of sensors and sensor displacements, isotropic performance V-angle can be found easily. V-shaped arrays are compared with circular arrays and it is also shown that both uniform and nonuniform V-shaped arrays have certain advantages.