Doppler Signal Processing Circuitry.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 09, 1981
- Accession Number
- ADD009173
Entities
People
- Otto Rittenbach
Organizations
- United States Army