A New Approach to Adaptive DOA Estimation Based upon a Database Retrieval Technique

摘要

In this paper, a new approach to adaptive direction-of-arrival (DOA) estimation based upon a database re- trieval technique is proposed. In this method, angles and signal power are quantized, and a set of true correlation vectors of the array antenna input vectors for various combinations of the quantized angles and signal powers is stored in a database. The k-d tree is then selected as the data structure to facilitate range searching.