Calibration of Aperture Arrays in Time Domain Using the Simultaneous Perturbation Algorithm

Online calibration is desired in antenna arrays of ultrawide bandwidth. This study proposes a time domain method based on the simultaneous perturbation algorithm. Two objective functions were established: power received signal at array output; or combination and correlation coefficient between output target signal. For both criteria, convergence settings require only two measurements each iteration. One advantage that entire operation for performed domain. achieved by resolving effects distortion delay channel, which accounts amplitude phase distortions different frequencies. Therefore, proposed significantly increased efficiency ultra-wideband arrays. Since coefficients associated with elements determined independently due to characteristic perturbation, estimation accuracy tangential number array, mainly dependent conditions. gives an additional distinct calibrating large-scale An 99% adjustments has been demonstrated.