Optimum weighted ESPRIT for 2-D angle estimation using a circular array
Qi Cheng, Runyu Yang · 2003
We propose and analyze an optimum weighted ESPRIT (OW-ESPRIT) in terms of minimum variance of direction cosine of 2-D angles. This OW-ESPRIT is shown to result in more than 2 dB reduction in variance, in situations of low angle estimation.