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Simultaneous broadcasting of analog FM and digital audio signals by means of adaptive precanceling techniques
1998
IEEE Transactions on Communications
A method for broadcasting digital audio simultaneously with existing analog frequency modulation (FM) radio is presented. The method is based on precomputing the response of the host analog FM signal at the digital receiver and precanceling it at the transmitter. As a result, the digital transmission is free from interference from analog FM. We select the rate and power level of the digital transmission in a manner that the interference the digital data incur on the analog FM signal remains at
doi:10.1109/26.718565
fatcat:dh5i2ggj4zdytnp47ymwb3uecm