System and method for calibrating transmit antenna array

A method, comprising:

• simultaneously transmitting, by a digital beam forming (DBF) antenna array comprising antenna radiating elements, a set of calibration signals on multiple antenna radiating elements of the antenna radiating elements, the antenna radiating elements comprising a first antenna radiating element and a second antenna radiating element, the multiple antenna radiating elements comprising the first and second antenna radiating elements, each calibration signal of the set of calibration signals comprising a given timing acquisition sequence and a given second sequence, the given second sequence used by at least one first processor to measure a phase and a gain of a given antenna radiating element of the antenna radiating elements;
• transmitting, by the DBF antenna array, a first calibration signal of the set of calibration signals by the first antenna radiating element;
• transmitting, by the DBF antenna array, a second calibration signal of the set of calibration signals by the second antenna radiating element;
• and
• calibrating, by the DBF antenna array, the multiple antenna radiating elements by using an estimated relative phase and an estimated relative gain for each of the multiple antenna radiating elements, wherein the estimated relative phase and the estimated relative gain for each of the multiple antenna radiating elements are obtained from the at least one first processor.