Direction - of - Arrival estimation for uniform sensor arrays

The Direction - of - Arrival estimation is a ubiquitous task in array signal processing with applications in radar, sonar, acoustics, astronomy, communications, medical imaging and military applications. For this reason, several techniques were developed for estimating the arrival direction of signals. The initial methods for estimating the direction of arrival were Bartlett and Capon, but the Multiple Signal Classification (MUSIC) algorithm is one of the most popular subspace-based techniques for estimating the directions-of-arrival of multiple signal sources. This paper is making a study of techniques for estimating the signals at arrival, when at the reception a linear array of antennas is used. The presented techniques are based on the estimation of the spectrum obtained at the reception. It shows a comparison between the methods implemented: Bartlett, Capon and MUSIC.