A Calibration Algorithm for Mutual Coupling Errors of Array Sensors Based on the Nonlinear Constraint

Author

Chun-yue, CHENG ; Ying-hua, LV

Author_Institution

Second Acad. 203th Inst., China Aerosp. Sci. & Ind. Corp., Beijing

fYear

2006

fDate

1-4 Aug. 2006

Firstpage

486

Lastpage

489

Abstract

A new calibration approach needing one calibration source is presented to estimate the mutual coupling coefficients of uniform circular array. Firstly, the data collection is done by placing one assistant source in different direction. Then the cost function is present by using the signal subspace vector and noise subspace vector of data covariance matrix. Under the nonlinear constraint, the union DOA estimation of assistant source and the mutual coupling coefficients of uniform circular array are given by iterative operation. The algorithm does not need know the direction of assistant source. Simulations show validity of the algorithm

Keywords

array signal processing; covariance matrices; direction-of-arrival estimation; iterative methods; DOA estimation; array sensors; calibration algorithm; data covariance matrix; iterative operation; mutual coupling errors; noise subspace vector; nonlinear constraint; signal subspace vector; uniform circular array; Aerospace industry; Calibration; Cost function; Direction of arrival estimation; Iterative algorithms; Multiple signal classification; Mutual coupling; Sensor arrays; Signal processing algorithms; Yield estimation; array signal processing; mutual coupling; nonlinear constraint;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Electromagnetics, The 2006 4th Asia-Pacific Conference on

Conference_Location

Dalian

Print_ISBN

1-4244-0183-6

Type

conf

DOI

10.1109/CEEM.2006.258001

Filename

4027333