Accurate DOA estimation using array antenna with arbitrary geometry

The so called universal steering vector (USV) whose locus is equivalent to the array element pattern is applied to the direction of arrival (DOA) estimation by multiple signal classification (MUSIC) algorithm. It is shown that if the USV which includes the effect of the mutual coupling between the array elements is used, the compensation for the received voltage to remove the effect of the mutual coupling is not required any more. The USV for array antennas with arbitrary geometry is derived and evaluated efficiently by using the method of moments (MoM) so that the DOA estimation can be performed accurately by using the array antenna with arbitrary geometry. Numerical examples of the DOA estimation by a dipole array antenna, and an antenna array composed of a monopole antenna and a planar inverted-F antenna (PIFA) mounted on a mobile handset are presented to demonstrate the effectiveness of the proposed method.

[1]  Hamid Reza Karimi,et al.  Study of the detection and resolution capabilities of a one-dimensional array of sensors by using differential geometry , 1994 .

[2]  J. Richmond,et al.  Mutual impedance of nonplanar-skew sinusoidal dipoles , 1975 .

[3]  Kapil R. Dandekar,et al.  Experimental study of mutual coupling compensation in smart antenna applications , 2002, IEEE Trans. Wirel. Commun..

[4]  B. Friedlander,et al.  Manifold interpolation for diversely polarised arrays , 1994 .

[5]  Qiang Chen,et al.  Radiation characteristics of array antennas for mobile handsets , 2003, 6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003.

[6]  Hon Tat Hui,et al.  Reducing the mutual coupling effect in adaptive nulling using a re-defined mutual impedance , 2002 .

[7]  Yasutaka Ogawa,et al.  On Performance Comparison of Calibration Techniques for Mutual Coupling Effect in Array Antennas , 2003 .

[8]  I. Gupta,et al.  Effect of mutual coupling on the performance of adaptive arrays , 1983 .

[9]  H. Hui.  Improved compensation for the mutual coupling effect in a dipole array for direction finding , 2003 .

[10]  Anthony J. Weiss,et al.  Direction finding in the presence of mutual coupling , 1991 .

[11]  E. Friel,et al.  Mutual coupling effects and their reduction in wideband direction of arrival estimation , 1994 .

[12]  T. Sarkar,et al.  Compensation for the effects of mutual coupling on direct data domain adaptive algorithms , 2000 .

[13]  Ralph O. Schmidt,et al.  Multilinear array manifold interpolation , 1992, IEEE Trans. Signal Process..

[14]  Hiroyuki Arai,et al.  DOA estimation in consideration of the array element pattern , 2002, Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367).

[15]  C. Yeh,et al.  Bearing estimations with mutual coupling present , 1989 .

[16]  Y. Kuwahara,et al.  Steering vector taking mutual coupling effects into consideration , 2000, IEEE Antennas and Propagation Society International Symposium. Transmitting Waves of Progress to the Next Millennium. 2000 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (C.