Doppler Signal Processing Circuitry.

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Abstract:

Circuitry is disclosed for processing Doppler-shifted radar signals or other noisy signals which fluctuate widely in frequency. The circuitry includes a dual channel discriminator including a voltage controlled oscillator as part of a feedback loop for frequency tracking of said signals. The discriminator further includes a frequency pass circuit in one channel thereof and a frequency stop circuit in the other channel thereof, with the outputs of these circuits applied to a multiplier. The multiplier output controls the frequency of the voltage controlled oscillator. The voltage controlled oscillator output is heterodyned with the input signals to obtain the heterodyned signals for application to the aforementioned two channels of the discriminator. Author

Author(s):
Rittenbach, Otto
Author Organization(s):
DEPARTMENT OF THE ARMY WASHINGTON DC
Descriptive Note:
Patent Application,
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Availability: This Government-owned Invention Available For U.s. Licensing And, Possibly, For Foreign Licensing. Copy Of Application Available Ntis.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-328 962
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Patent applications, *Doppler radar, *Signal processing, *Discriminators, Dual channel, Radar signals, Tracking, Doppler systems, Channels, Voltage controlled oscillators, Input, Doppler effect, Loops, Heterodyning, Radar pulses, Control, Continuous waves, Frequency, Signals, Feedback, Processing, Circuits, Output
Field(s)/Group(s):
Active and Passive Radar Detection and Equipment
Keyword(s):
Multipliers, Frequency tracking, Doppler processors, Nonbaseband processors
Report Date:
1981 Dec 09