Estimation Of DOA Based On MUSIC

With the development of technology, the direction of arrival of the signal has been request at many fields, such as radar, communication. We introduce the MUSIC algorithm in this article. Direction of arrival estimation for transmitted sources is useful in many applications including radar systems.In the past, little papers mentioned DOA estimation on tri-dimensional circular antenna array. In this paper, the MUSIC (multiple signal classification) algorithm on tri-dimensional circular array is used to estimate the DOA (direction of arrival). The precision of estimation is affected by many factors. It is shown through simulation that the performance of DOA estimation is affected by signal to noise ratios (SNR) and the frequency of the distributed signal sources.At the same time, the project about how to apply the MUSIC algrithum to fact is introduced.