Relationship between direction of arrival estimation with MUSIC algorithm and number of array elements

Direction of arrival (DOA) estimation has been a vital area of research since few decades due to its importance in applications like wireless communication, navigation radar, sonar etc. The resolution being one of the main challenges in the direction of arrival estimation can be enhanced by array antenna system with reliable signal processing. In this paper we simulate the high resolution subspace based DOA algorithm called Multiple Signal Classification (MUSIC) on a uniform linear array in the presence of ideal white Gaussian noise. This paper provides the relation between DOA estimation and number of array elements using MUSIC algorithm. MUSIA methods give more accurate and smooth resolution of the signals.