DocumentCode :
1447405
Title :
POWER-side [independent sideband system of AM stereo]
Author :
Kahn, Leonard R.
Author_Institution :
Kahn Commun. Inc., Westbury, NY, USA
Volume :
34
Issue :
3
fYear :
1988
fDate :
9/1/1988 12:00:00 AM
Firstpage :
407
Lastpage :
420
Abstract :
The independent sideband system of AM stereo can, by use of special audio processing, significantly improve mono reception. The resulting transmitted signal, called a `POWER-side´ signal, allows listeners to `sideband tune´ with new types of mono receivers so as to reduce co and adjacent channel interference, improve the effective fidelity of the AM receiver, and make the receiver´s tuning significantly less critical. Furthermore, due to the inequality of low frequency sideband components, the system reduces selective fading, antenna null distortion and re-radiation problems when the POWER-side signal is received by both `sideband tuned´ mono receivers as well as digitally tuned stereo and mono receivers which center tune to the carrier frequency. Most importantly, this type of wave substantially reduces co-channel `beating´ effects that have, since the earliest days of broadcasting, plagued AM signal reception
Keywords :
Hi-Fi equipment; radio broadcasting; AM receiver; AM signal reception; AM stereo; POWER-side signal; adjacent channel interference; antenna null distortion; audio processing; carrier frequency; cochannel interference; independent sideband system; low frequency sideband components; mono receivers; mono reception; selective fading; transmitted signal; tuning; Amplitude modulation; Antenna accessories; Broadcasting; Envelope detectors; Fading; Frequency modulation; Interchannel interference; MONOS devices; Receiving antennas; Tuning;
fLanguage :
English
Journal_Title :
Broadcasting, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9316
Type :
jour
DOI :
10.1109/11.7313
Filename :
7313
Link To Document :
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