Baseband Pulse Shaping for GMSK Modulation

Abhishek Shankar

Garv Sharma

Gaurav Virmani

Abstract— Modulation forms an important part of any communication system. In this paper, GMSK modulation scheme is discussed. A sigma-delta modulation based Gaussian pulse shaping procedure is elaborated upon. Once the Gaussian baseband signal is generated, FSK modulation is used at a modulation index of m = 0.5 to generate a GMSK modulated signal. This proves to be an inexpensive method to generate GMSK signals using an FSK transmitter.