Field Tests of Digital Audio Broadcasting in the FM Band Based on Continuous Phase Modulation

摘要

We propose a new broadcasting scheme for the transmission of digital audio signals simultaneously with existing analog frequency modulation radio (88-108 MHz) in adjacent channels, denoted as in-band-adjacent channel system (IBAC) . This broadcasting scheme enables the transmission of digital audio data in CD quality with a data rate of up to 156 kb/s within an FM 200 kHz channel.