Direction of arrival by non-coherent arrays
Document Type
Conference Proceeding
Publication Date
6-3-2016
Abstract
In previous work we have shown that non-coherent direction of arrival (DOA) estimation by an array of sensors may be implemented from magnitude-only measurements. Here we show that magnitude-only measurements collected by a sensor array may be modeled by a non-central chi-square distribution with mean and variance independent of the phase errors. We also develop a closed-form expression for the Cramer-Rao bound (CRB) of non-coherent DOA estimation for the difference in spatial frequency between two sources. Finally, we obtain closed-form expressions for the maximum likelihood estimates (MLEs) of various unknown parameters. These theoretical expressions are used to analyze the performance of non-coherent DOA estimation.
Identifier
84978229490 (Scopus)
ISBN
[9781509008636]
Publication Title
2016 IEEE Radar Conference Radarconf 2016
External Full Text Location
https://doi.org/10.1109/RADAR.2016.7485274
Recommended Citation
Jiang, Wei; Haimovich, Alexander M.; and Eldar, Yonina C., "Direction of arrival by non-coherent arrays" (2016). Faculty Publications. 10452.
https://digitalcommons.njit.edu/fac_pubs/10452
