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Related Experiment Video

Updated: Mar 19, 2026

Clinical Imaging of Microwave Mammography
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Performance characterization of electronic FMCW active imagers.

Joshua Teague, Orges Furxhi, Mehmetcan Akbulut

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    Summary
    This summary is machine-generated.

    Electronic frequency-modulated continuous-wave (eFMCW) active imagers offer improved sensitivity and range precision for simultaneous distance and velocity measurements. This study models eFMCW performance, showing its promise for advanced imaging systems.

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    Area of Science:

    • Physics
    • Electrical Engineering
    • Signal Processing

    Background:

    • Active imaging systems transmit signals and analyze echoes to detect targets.
    • Frequency-modulated continuous-wave (FMCW) systems modulate signal frequency for range resolution.
    • Electronic FMCW (eFMCW) utilizes a chirped frequency modulation and local oscillator for demodulation.

    Purpose of the Study:

    • To model and compare the signal-to-noise ratio (SNR) and range precision of an eFMCW active imager.
    • To evaluate eFMCW against two other range-resolving imaging techniques.
    • To motivate the development of a prototype eFMCW imager.

    Main Methods:

    • Modeling the SNR and range precision of a notional eFMCW active imager.
    • Comparing eFMCW performance metrics with alternative range-resolving imaging techniques.
    • Presenting the design of a prototype eFMCW imager.

    Main Results:

    • eFMCW demonstrates increased sensitivity compared to similar methods.
    • eFMCW exhibits enhanced range precision when contrasted with alternative techniques.
    • The modeling results support eFMCW as a promising system design.

    Conclusions:

    • eFMCW active imaging is a viable technique for simultaneous distance and velocity recovery.
    • The enhanced sensitivity and range precision of eFMCW make it suitable for advanced applications.
    • The study's findings provide a foundation for the practical implementation of eFMCW imagers.