Bhatti, Qurat-ul-ain Analyses of QPSK system with and without gray coding / Qurat-ul-ain Bhatti. - MUET, Jamshoro : Telecommunication Engineering, IICT, 2009. - xiii, 54p. : ill. ; 30 cm. Includes references. Subjects--Topical Terms: Telecommunication & Control Engineering. Dewey Class. No.: / BHA