Doppler shift generator apparatus

Details Doppler shift generator apparatus Doppler shift generator apparatus

1988-10-11

1989-10-24

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Radar ew

Ecm

342200, G01S 738

Patent

active

048765465

ABSTRACT:
Doppler shift generator for use in electronic countermeasures equipment includes analog memory devices which are comprised of acoustic charge transport (ACT) memory devices. Such Doppler shift generators includes a switch which alternately applies an input signal to said first and second analog memory devices. Each analog memory device is responsive to a clock signal to sample data at a first frequency and to output the data at a second frequency. As a result, a Doppler shifted signal is generated whose frequency has been shifted by the difference in the first and second frequencies.

REFERENCES:
patent: 3891989 (1975-06-01), Barney et al.
patent: 3971021 (1976-07-01), Cann
patent: 4072949 (1978-02-01), Van Brunt
patent: 4100957 (1979-07-01), Jesinger
patent: 4297641 (1981-10-01), Sterzer
patent: 4338528 (1982-07-01), Wolkstein
patent: 4505264 (1985-03-01), Bogert et al.
patent: 4683473 (1987-07-01), Haugland

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