Steering Vector Transformation Technique for the Design of Point Sources Wideband Beamformer.

Mohamed Shaban, Mohamed ElSaied Mohamed; Ahmed Kishk, Sherief; El-Mikati, Hamdy

doi:10.21608/bfemu.2021.157667

Steering Vector Transformation Technique for the Design of Point Sources Wideband Beamformer.

Document Type : Research Studies

Authors

¹ Electronics and Communication Engineering Department.,Faculty of Engineering.,El-Mansoura University., Mansoura., Egypt.

² Electronics and Communication Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

³ Electronics and Communication Engineering Department., Faculty of Engineering.,. El-Mansoura University., Mansoura., Egypt.

10.21608/bfemu.2021.157667

Abstract

Steering vector transformation technique for wideband antenna array of point sources is presented. Wideband direction of arrival (DoA) estimation using this technique is illustrated. In the present work, steering vector transformation is applied to the conventional frequency domain beamformer to enhance the frequency invariance of the mainlobe pattern. Several simulation examples are presented to illustrate the advantage of the proposed frequency domain beamformer over the conventional one. As the array size increases or the interelement spacing decreases, the proposed beamformer still has a better frequency invariant property of the mainlobe pattern than the conventional beamformer. Finally, using windows, a better frequency invariant
property of the mainlobe patter is obtained by the proposed beamformer than the conventional one.

Keywords

Main Subjects