UNIFORM AND NONUNIFORM V-SHAPED ISOTROPIC PLANAR ARRAYS


Filik T., TUNCER T. E.

IEEE Sensor Array and Multichannel Signal Processing Workshop, Darmstadt, Germany, 21 - 23 July 2008, pp.99-103 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/sam.2008.4606833
  • City: Darmstadt
  • Country: Germany
  • Page Numbers: pp.99-103

Abstract

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.