Investigative study of planar array ambiguities based on “hyperhelical” parameterization

Author

Manikas, Athanassios ; Proukakis, Christos ; Lefkaditis, Vasileios

Author_Institution

Sect. of Signal Process. Res., Imperial Coll. of Sci., Technol. & Med., London, UK

Volume

47

Issue

6

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

1532

Lastpage

1541

Abstract

In this paper, a novel approach is proposed for the calculation of ambiguous generator sets of directions for planar arrays. This approach is based on the concept of hyperhelical curves and their equivalent linear arrays, which provide a vehicle for investigating planar array ambiguities by adopting and extending techniques proposed for linear arrays. Thus, ambiguous generator sets of directions of constant azimuth and different elevation are initially calculated, and the concept of ambiguous generator lines is introduced. Then, by using cone-angle parametrization, ambiguities associated with directions of different azimuth and different elevation are investigated

Keywords

array signal processing; direction-of-arrival estimation; ambiguous generator lines; array processing; azimuth; cone-angle parametrization; direction finding system; elevation; equivalent linear arrays; hyperhelical curves; hyperhelical parameterization; planar array ambiguities; Array signal processing; Azimuth; Geometry; Planar arrays; Sensor arrays; Sensor systems; Shape; Vectors; Vehicles; Wavelength measurement;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.765122

Filename

765122