Multipath Cancellation Using a Maximum Likelihood Metric Space

Abstract

Multipath signals occur in many sonar, radar, and communication applications. It is, of course, generally desirable to eliminate these unwanted signals. Traditional array signal processing techniques often have trouble eliminating these signals when only a small number of array elements are available. The maximum likelihood method explicitly models multiple signals in its mathematical construction. This feature effectively opens up a multidimensional space that allows the desired direct path signal to be completely from the multipath signals. Examples with both narrowband and broadband signals are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2010
Accession Number
ADA527475

Entities

People

  • John E. Piper

Organizations

  • Naval Surface Warfare Center

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Angle Of Arrival
  • Arrays
  • Beam Steering
  • Broadband
  • Covariance
  • Equations
  • Frequency
  • Gaussian Noise
  • Geometry
  • High Resolution
  • Inverse Problems
  • Linear Arrays
  • Narrowband
  • Phase Shift
  • Signal Processing
  • Sonar
  • Steering

Fields of Study

  • Engineering

Readers

  • Calculus or Mathematical Analysis
  • Phased Array Antenna Design.
  • Statistical inference.

Technology Areas

  • Space