Direction of Arrival Estimation under Source Location Uncertainties
Yong Up Lee, Iickho Song, Seong Ro Lee, Hyung Myung Kim, Seong Ill Park, Sun Yong Kim · International Symposium on Information Theory and its Applications · 1994
In direction of arrival (D0A) estimation, the locations of point signal sources are usually assumed to be fixed during the acquisition of data, which is reasonable in many cases. If the observed bearings of the point signal sources are perturbed in a statistical way during the observed period and the signal sources are not far away from receiver array, however, direction of arrival estimation methods based on the above assumption may produce incorrect results. In this paper, to resolve these problems we propose a perturbed-location signal model based on a new signal source assumption. Under this model, an estimation method based on the multiple signal classification method is investigated.