Analysis circuit for an amplitude-modulated electric signal comp

Details Analysis circuit for an amplitude-modulated electric signal comp Analysis circuit for an amplitude-modulated electric signal comp

1987-06-02

1988-04-19

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

455115, 455226, G01R 2316

Patent

active

047392517

ABSTRACT:
Circuit for analyzing an amplitude-modulated electric signal. This circuit comprises a quartz oscillator operating at a frequency fq, a frequency transposer making it possible to transpose the spectrum of the incident signal about fq, a narrow filter centered on one of the side bands, a detector receiving said side band and the reference signal at frequency fq and two processing channels, one being an amplitude channel and the other a phase channel.
Application of the measurement of the current in an antenna, to the characteristics of quadripoles, impedances, etc.

REFERENCES:
patent: 3300722 (1967-01-01), Hzuka
patent: 3548310 (1970-12-01), Fenwick
patent: 3866124 (1975-02-01), Wycoff
patent: 3876953 (1975-04-01), Abel
patent: 4006315 (1977-02-01), Halstead
patent: 4241454 (1980-12-01), Snell
patent: 4244054 (1981-01-01), Lorea

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