An new initial method for CMA antenna array

Author

Ming-hua, Zhu ; Yuan-An, Liu ; Hui-lan, Wu

Author_Institution

Telecom Eng. Sch., Beijing Univ. of Posts & Telecommun., China

Volume

2

fYear

2001

fDate

2001

Firstpage

549

Abstract

In the realistic environment of mobile communications, a CMA (constant modulus algorithm) adaptive array receives many constant modulus signals. Its capability to capture the desired signal is influenced by its initialization. In this paper, we suggest a new initial method which is based on Chebyshev antenna arrays for CMA arrays, on the conditions that the DOA (direction of arrival) of the desired signal is known. The results of simulation show that the new method can not only make a CMA array converge faster, but also control the CMA to converge on the desired signal even if the differences between the incident angles of desired signal and interference signals are small. So it is an effective and practical method

Keywords

adaptive antenna arrays; antenna radiation patterns; convergence; mobile radio; receiving antennas; CMA antenna array; Chebyshev antenna arrays; DOA; adaptive array; constant modulus algorithm antenna; constant modulus signals; convergence; desired signal; direction of arrival; initial method; initialization; interference signals; mobile communications; Adaptive algorithm; Adaptive arrays; Antenna arrays; Chebyshev approximation; Convergence; Directive antennas; Fluctuations; Interference; Mobile communication; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Info-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on

Conference_Location

Beijing

Print_ISBN

0-7803-7010-4

Type

conf

DOI

10.1109/ICII.2001.983636

Filename

983636