Performance bound analysis of a hybrid array

Author

Brown, George C. ; McClellan, James H. ; Holder, E. Jeff

Author_Institution

Electron. Syst. Lab., Georgia Tech. Res. Inst., Atlanta, GA, USA

Volume

44

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

74

Lastpage

82

Abstract

A hybrid array is a new type of spatial array paradigm incorporating multiple sensor error models. To investigate the implications of hybrid arrays, a detailed performance analysis of a particular hybrid array is carried out. This array is composed of both ideal and general phase degraded sensors. To simplify the discussion, the analysis is restricted to unconstrained sensor sufficient configurations. It is shown that this kind of array can have better angle-of-arrival (AOA) estimation accuracy than a classical subarray of the ideal sensors alone. Also, bounds on the performance of self-calibration of the phase degraded sensors are presented. The performance analysis is carried out making extensive use of both the symbolic and numeric Cramer-Rao lower bound (CRLB). The CRLB results are compared to Monte Carlo simulation

Keywords

calibration; direction-of-arrival estimation; error analysis; AOA estimation accuracy; CRLB results; Cramer-Rao lower bound; Monte Carlo simulation; angle-of-arrival; hybrid array; multiple sensor error models; performance bound analysis; phase degraded sensors; self-calibration; spatial array; unconstrained sensor sufficient configurations; Data mining; Degradation; Digital signal processing; Geometry; Helium; Laboratories; Performance analysis; Phased arrays; Sensor arrays; Sensor phenomena and characterization;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.482013

Filename

482013