A Method for Mitigating Spatial Aliasing

Abstract

The invention as disclosed is a method for mitigating spatial aliasing that takes advantage of the forward motion of towed array elements to overcome the frequency constraints imposed on beam forming by the spatial separation of the array elements. The method employs the motion of a towed array of hydrophones to generate at least one synthetic array element to compensate for spatial under sampling.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 24, 2010
Accession Number
ADD020461

Entities

People

  • Mary H. Johnson

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Signals
  • Arrays
  • Beam Forming
  • Computers
  • Data Processing
  • Detectors
  • Doppler Effect
  • Elements
  • Fast Fourier Transforms
  • Filters
  • Frequency
  • Graphical User Interface
  • Hydrophones
  • Inventions
  • Sampling
  • Synthetic Elements
  • Towed Arrays

Readers

  • Acoustical Oceanography.
  • Electrical Engineering
  • Image Processing and Computer Vision.