Single Antenna Passive Synthetic Aperture DoA Estimation

Direction-of-Arrival (DoA) estimation is critical for various applications such as radar, sonar, and wireless communication, where the identification of radio frequency (RF) source localization is essential. This paper presents a passive detection technique using a synthetic aperture with a single sensor element. The method leverages the sensor’s movement to form a synthetic aperture, reducing system complexity and cost while maintaining high accuracy. Simulation results demonstrate the technique’s effectiveness under different conditions, showing its potential for practical applications in surveillance, navigation, and RF interference detection and suppression.