Synchronous integrator and demodulator

R. H. Frater*

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)


A demodulator system has been developed where integration is performed prior to demodulation. This allows a simple demodulator to be used to obtain a high level output with large dynamic range. A complete demodulator is described which gives a maximum dc output of 10V with an input rms signal-to-noise ratio as low as - 10 dB. The output zero drift is less than 50 μV/° C. The system is designed for radio astronomy applications, but is widely applicable for the recovery of signals "buried" in noise.

Original languageEnglish
Pages (from-to)634-637
Number of pages4
JournalReview of Scientific Instruments
Issue number5
Publication statusPublished - 1965
Externally publishedYes

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