MATLAB Implementation for Four Input Signals with Uniform Circular Array

Resource Overview

Direction of Arrival Estimation and Beamforming Using Eight-Element Uniform Circular Array with Four Input Signals

Detailed Documentation

This technique utilizes four input signals processed through an eight-element uniform circular array (UCA). The primary objectives include direction of arrival (DOA) estimation and beamforming operations. In MATLAB implementation, this typically involves creating a UCA geometry using phased.ULA or custom coordinate calculations, followed by signal modeling using phased.SteeringVector or similar functions. The DOA estimation algorithm may employ MUSIC (Multiple Signal Classification) or ESPRIT (Estimation of Signal Parameters via Rotational Invariance Techniques) methods, while beamforming can be implemented through phased.PhaseShiftBeamformer or minimum variance distortionless response (MVDR) approaches. This methodology enables enhanced target detection and localization capabilities, making it widely applicable in signal processing domains such as radar systems, wireless communications, and acoustic source tracking.