Direction finding with compensation of Mutual Coupling based on Complex Fast ICA in circular array antenna

Performance of high resolution direction finding is degraded in the presence of mutual coupling existing among antenna array elements. There are different methods to calculate the mutual coupling matrix and compensate its effects in the DF algorithm performance. In this paper, the multiple-signal cl...

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description Performance of high resolution direction finding is degraded in the presence of mutual coupling existing among antenna array elements. There are different methods to calculate the mutual coupling matrix and compensate its effects in the DF algorithm performance. In this paper, the multiple-signal classification algorithm is used to find the angle of arrival in the uniform circular array. According to the fact that wave propagation follows the maximum entropy principle and independent component analysis is based on this principle, Complex fast ICA (independent component analysis) is used to estimate the mutual coupling matrix among the array elements and consequently use the result matrix to compensate the unwanted effect of mutual coupling in the MUSIC-DOA algorithm. This method neither needs any considerations of the array shape nor complex calculation, like the moments method. Results are compared with the standard MUSIC algorithm without compensation of mutual coupling.
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subjects Antenna arrays
Antennas and propagation
Circular array
Classification algorithms
Complex FAST- ICA
Degradation
Direction Finding
Directive antennas
Entropy
Independent component analysis
Moment methods
MUSIC algorithm
Mutual coupling
Shape
title Direction finding with compensation of Mutual Coupling based on Complex Fast ICA in circular array antenna
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