Improvement of Signal-to-Noise Ratio of the Power-Law Envelope Detector by Utilizing Output Harmonic Components

Iwao SASASE  Shinsaku MORI  

Publication
IEICE TRANSACTIONS (1976-1990)   Vol.E71   No.8   pp.768-774
Publication Date: 1988/08/25
Online ISSN: 
DOI: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Foundations of Signal Theory and Communication Theory
Keyword: 


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Summary: 
A general analysis of the effect of the power-law envelope detector by the use of output harmonic components on signal-to-noise ratio (SNR) is performed. By using multiplication and filtering, the additional zero-frequency components are obtained from output harmonic components of the power-law envelope detector. An general expression of the improvement factor on SNR is obtained which is applicable to non-Gaussian noise. It is found that the output SNR can be improved by using the additional zero-frequency components from the output harmonic components of the power-law envelope detector.