hi, Ciholas:
your mean is that we use the following format: angle = asin((pdoa_true)/M_PI)/factor, when antenna distance is 2.08cm, the factor is 0.95. if the distance change, according to the true angle and asin((pdoa_true)/M_PI), we can get the factor, if non-linear, we can use polynomial or look up table. ?
Is your AOA equipment in mass production ？ we can consider buying your equipment. and hope to see your product information.