AM/FM modulation standard
作者:
C.J.Kikkert,
期刊:
IEE Proceedings F (Communications, Radar and Signal Processing)
(IET Available online 1981)
卷期:
Volume 128,
issue 6
页码: 379-384
年代: 1981
DOI:10.1049/ip-f-1.1981.0065
出版商: IEE
数据来源: IET
摘要:
The paper describes an AM and FM calibrator which produces AM and FM with a traceable accuracy and which can thus be used as a modulation standard. A PROM is used to store binary sequences which when filtered produce audio waveforms with precisely known characteristics. Using digital techniques, this PROM sequence can amplitude modulate or frequency modulate a carrier, resulting in AM or FM with a precisely known modulation depth or frequency deviation.
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