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This study introduces pseudonoise waveforms for multifunction coherent ladar systems. These waveforms enable diverse applications like high-resolution imaging and micro-Doppler analysis.

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Area of Science:

  • Coherent laser detection and ranging (ladar) systems.
  • Signal processing for radar and ladar applications.

Background:

  • Multifunction coherent ladar systems require versatile waveform designs.
  • Pseudonoise waveforms offer unique properties for signal processing.

Purpose of the Study:

  • To demonstrate the utility of periodic, pseudonoise waveforms in a multifunction coherent ladar system.
  • To enable diverse ladar functions using Doppler sensitivity and agile processing.

Main Methods:

  • Utilizing Doppler sensitivity of pseudonoise waveforms.
  • Implementing agile signal processing techniques.
  • Developing analytic expressions and simulations for waveform analysis.

Main Results:

  • Demonstrated high range resolution imaging capabilities.
  • Achieved macro-Doppler imaging and synthetic aperture ladar.
  • Enabled range-resolved micro-Doppler imaging.
  • Validated phase recovery for coherent modes.

Conclusions:

  • Periodic, pseudonoise waveforms are effective for multifunction coherent ladar.
  • These waveforms enhance ladar system capabilities for various imaging and sensing tasks.
  • A laboratory system confirmed the practical application of pseudonoise waveforms.