Compressive Passive Millimeter Wave Imaging with Extended Depth of Field

Abstract

We introduce a millimeter wave imaging modality with extended depth-of-field that provides diffraction-limited images with reduced-spatial sampling. The technique uses a cubic phase element in the pupil of the system and a nonlinear recovery algorithm to produce images that are insensitive to object distance. We present experimental results that validate system performance and demonstrate a greater than four-fold increase in depth-of-field with a reduction in sampling requirements by a factor of at least two.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2012
Accession Number
ADA583898

Entities

People

  • Joseph N. Mait
  • Vishal M. Patel

Organizations

  • Rice University

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • 5G Wireless Networks
  • Algorithms
  • Compressed Sensing
  • Detection
  • Diffraction
  • Image Reconstruction
  • Imaging Techniques
  • Inverse Problems
  • Measurement
  • Mechanical Scanning
  • Military Research
  • Millimeter Waves
  • Observation
  • Sampling
  • Scanning
  • Signal Processing
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Image Processing and Computer Vision.
  • Microwave Engineering.

Technology Areas

  • 5G