Tracking directions-of-arrival with invariant subspace updating
Document Type
Article
Date of Original Version
1-1-1996
Abstract
A new method for solving directions-of-arrival (DOA) tracking problems is presented. It is based on a practical method for updating invariant subspaces, introduced by G.W. Stewart. This method is O(L2), where L is the number of array sensors. One advantage gained by using the invariant subspace updating method is the ability to track rapidly changing DOAs. In addition, it is possible to track sources as they appear or disappear in the incoming data. The results are indistinguishable from those obtained from a full eigendecomposition at every step.
Publication Title, e.g., Journal
Signal Processing
Volume
50
Issue
1-2 SPEC. ISS.
Citation/Publisher Attribution
Macinnes, Craig S., and Richard J. Vaccaro. "Tracking directions-of-arrival with invariant subspace updating." Signal Processing 50, 1-2 SPEC. ISS. (1996): 137-150. doi: 10.1016/0165-1684(96)00006-0.