A New CLEAN Algorithm for Angle of Arrival Denoising

Author

Akhdar, Oussama ; Mouhamadou, Moctar ; Carsenat, David ; Decroze, Cyril ; Monediere, Thierry

Author_Institution

Fac. des Sci. et Tech., XLIM, Limoges, France

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

478

Lastpage

481

Abstract

In a previous work, a novel technique for angle of arrival (AOA) measurement was proposed. This technique consists of sweeping the angular domain with one antenna, step by step, such that at each measurement step the received signal voltage at the rotating antenna (sensor) is measured. The signal voltage vector is the convolution between the antenna electric field pattern and the AOAs (magnitude and phase) of the incident wave. In this letter, a denoising CLEAN algorithm is modified and applied to this technique in order to eliminate spurious peaks and accurately find the AOAs of incoming waves. A set of measurements is made to evaluate the proposed algorithm. The results show the effectiveness of the denoising algorithm in reducing the noise level; a high angular precision in measured AOAs is noticed.

Keywords

direction-of-arrival estimation; signal denoising; telecommunication channels; CLEAN algorithm; angle of arrival estimation; propagation channel; signal denoising; Angle of arrival (AOA); CLEAN; deconvolution; denoising; propagation channel;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2014890

Filename

4781782