DOA estimation by bootstrap method

The bootstrap is a great technique for assessing the accuracy of parameters estimator in situations where conventional techniques are not valid. In this article, we highlight the motivations for using the bootstrap in array signal processing applications. ESPRIT and bootstrap methods combines are combined into one novel technique to solve the DOA (Direction of Arrival) estimation of sources arriving simultaneously on an array. In the situation of fewer snapshots received by passive radar system, the proposed algorithm shows good estimation performance.