Wide bandwidth, high resolution circuitry for phase shifted frequency detection
AssigneeThe United States of America as represented by the Secretary of the Army
InventorWilliam J. Skudera, Jr.
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Abstract
Phase shifted frequency components of wide bandwidth, composite signals are ocused for analysis with high resolution by circuitry which includes both a Chirp-Z and a superheterodyne signal analyzer. An interface between the analyzers synchronizes the outputs therefrom relative to each phase shifted frequency component. Preferred embodiments are disclosed with the analyzers generally arranged in either parallel or series and replicating circuitry may be included in the latter to sustain the integrity of the phase shifted frequency components for some predetermined period of time.
Claims20
Circuitry for analyzing the phase shifted frequency components of composite signals, comprising:
- a wide bandwidth Chirp-Z signal analyzer for deriving segregated time domain outputs of the phase shifted frequency components;
- a swept-tuned, narrow bandwidth superheterodyne signal analyzer for outputting the phase shifted frequency components with high resolution;
- and
- interface means between said Chirp-Z and superheterodyne analyzers for sychronizing the presence of the phase shifted frequency components at the outputs of those analyzers.
Circuitry for analyzing the phase shifted frequency components of composite signals, comprising:
- a single antenna for receiving the composite signals;
- a swept-tuned, narrow bandwidth superheterodyne signal analyzer for outputting the phase shifted frequency components with high resolution;
- a wide bandwidth Chirp-Z signal analyzer for deriving segregated time domain outputs of the phase shifted frequency components, said Chirp-Z signal analyzer being series connected between said antenna and said superheterodyne analyzer;
- and
- interface means between said Chirp-Z and superheterodyne analyzers for synchronizing the presence of the phase shifted frequency components at the outputs of those analyzers.
Dependencies are inferred from the claim text.