COMPARING THE PERFORMANCE OF PHASE SHIFT MODULATION TYPES AND THEIR EFFICIENCY IN A DIGITAL COMMUNICATION SYSTEM. J. eng. sustain. dev. [انترنت]. 1 مايو، 2015 [وثق 19 مايو، 2024];19(3):125-40. موجود في: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/771