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Title: | MF-AM stereo broadcasting: the choice of modulation | Authors: | Temerinac M. Markovic A. Živković-Džunja, Zdenka |
Issue Date: | 1-Mar-1989 | Journal: | IEEE Transactions on Broadcasting | Abstract: | Several AM stereo transmitting systems have been applied to local radio-broadcasting networks on the MF (medium-frequency) band in the US. These sysems represent a certain compromise between two mutually contrary requirements: (i) that the broadcast spectrum be at the MF carrier within the determined boundaries (the channel occupancy criterion) and (ii) that the transmitted signal be compatible with MF-AM monaural receivers (the compatibility criterion). It is proved that a transmission system that perfectly satisfies both requirements does not exist. A modulation method called modified compatible quadrature amplitude modulation (MC-QAM) is proposed. The system has simpler circuitry and less distortion, and occupies, under many circumstances, a narrower frequency bandwidth. With slight modifications, existing receivers for C-QAM could be used for MC-QAM. | URI: | https://open.uns.ac.rs/handle/123456789/16276 | ISSN: | 00189316 | DOI: | 10.1109/11.18770 |
Appears in Collections: | FTN Publikacije/Publications |
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