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The Reconstruction of a Signal from the Zero Crossings of an FM Signal
IEICE TRANSACTIONS (1976-1990)
Publication Date: 1985/10/25
Print ISSN: 0000-0000
Type of Manuscript: LETTER
Category: Circuit Theory
Full Text: PDF(84.3KB)>>
The reconstruction of the modulating signal from the zero crossings has been treated extensively in the literature. However, the analysis on the zero crossings is only an approximation based on the average pulse counts. The relating reconstruction methods or zero-crossing discriminations, are also elaborate and costly. It is the purpose of this letter to analyze the zero crossings of an FM signal exactly in the frequency domain. From this analysis, a very simple method is proposed to demodulate an FM signal.