Title :
Smart elliptical arrays
Author :
El-Khamy, Said E. ; Abd-El-Kader, Nermin
Author_Institution :
Dept. of Electr. Eng., Alexandria Univ., Egypt
Abstract :
A simple linear transformation referred to as the equivalence theorem is used to reduce many problems of elliptical arrays, which may operate in a multipath correlated interference environment, to those of their circular equivalents. Then a preprocessing technique in conjunction with the conjugate gradient method (CGM) is used to find the optimal weights of the resultant circular array. The pattern obtained has its maximum in the direction of the desired signals. This method is extended to the case of many desired signals. Such an array is suitable to act as a smart array in multipath telecommunication channels
Keywords :
adaptive antenna arrays; antenna radiation patterns; array signal processing; conjugate gradient methods; direction-of-arrival estimation; interference suppression; multibeam antennas; multipath channels; antena radiation pattern; circular array; conjugate gradient method; equivalence theorem; interference suppression; linear transformation; multipath correlated interference environment; multipath telecommunication channels; multiple beam adaptive elliptical antenna array; optimal weights; preprocessing technique; smart elliptical arrays; Adaptive arrays; Antenna arrays; Array signal processing; Communication channels; Discrete Fourier transforms; Gradient methods; Interference elimination; Marine vehicles; User-generated content; Vectors;
Conference_Titel :
Radio Science Conference, 1996. NRSC '96., Thirteenth National
Conference_Location :
Cairo
Print_ISBN :
0-7803-3656-9
DOI :
10.1109/NRSC.1996.551101
