Chapter 9. Direction-Of-Arrival Estimation Algorithms
This chapter provides a detailed overview of the various methods available for estimation of Direction-Of-Arrival (also called Angle-Of-Arrival) of a radio signal using an antenna array. Promising methods for determining the position of a mobile user are also given. The use of adaptive arrays is critical in position location applications [Ken96], and, given the recent mandate by the FCC to require 125m accuracy on wireless emergency calls by the year 2001 [Ree98] [Rap96b], there is intense interest in determining the Direction-Of-Arrival of RF signals in wireless systems.
The array-based Direction-Of-Arrival (DOA) estimation techniques considered here are broadly divided into four different ...
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