Acousto-optic analyzer with dynamic signal compression

Details Acousto-optic analyzer with dynamic signal compression Acousto-optic analyzer with dynamic signal compression

1986-05-13

1988-02-02

LaRoche, Eugene R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

350371, 350372, 324 77K, G02F 111, G02F 133, G01R 2316, G01R 2702

Patent

active

047225963

ABSTRACT:
An acousto-optic spectrum analyzer in which the dynamic range is effectively extended by detecting the frequency bands wherein the photo-detectors are saturated and providing a filter to suppress those frequencies. With this pre-filter, the entire spectrum appears to be within the dynamic range of the photo detectors. The actual spectrum can be reconstructed using the response of the suppression filter and the photo detector output.

REFERENCES:
patent: 3942109 (1976-03-01), Crumly et al.
patent: 4126834 (1978-11-01), Coppock
patent: 4530573 (1985-07-01), Wolkstein
patent: 4602342 (1986-07-01), Gottlieb et al.
patent: 4629879 (1986-12-01), Baldwin et al.
patent: 4639092 (1987-01-01), Gottlieb et al.

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