Classification and Discrimination of Sources With Time-Varying Frequency and Spatial Spectra

Abstract

A novel high-resolution time-frequency representation method is proposed for source detection and classification in over-the-horizon radar (OTHR) systems. A data-dependent kernel is applied in the ambiguity domain to capture the target signal components, which are then resolved using the root-MUSIC based coherent spectrum estimation. This two-step procedure is particularly effective for analyzing a multi-component signal with time-varying complex time-Doppler signatures. By using the different time-Doppler signatures, important target maneuvering information, which is difficult to extract using other linear and bilinear time-frequency representation methods, can be easily revealed using the proposed method.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2003
Accession Number
ADA417232

Entities

People

  • Moeness Amin

Organizations

  • Villanova University

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustics
  • Angle Of Arrival
  • Communication Systems
  • Computational Science
  • Detection
  • Detectors
  • Doppler Effect
  • Frequency Bands
  • High Resolution
  • Mathematical Filters
  • Mobile Phones
  • Multiple Access
  • Radar
  • Radar Equipment
  • Synthetic Aperture Radar
  • Two Dimensional
  • Waveforms

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Radar Systems Engineering.