Range Sidelobe Response from the Use of Polyphase Signals in Spotlight Synthetic Aperture Radar

Abstract

This thesis investigated five specific phase-shift keyed (PSK) modulated signals for usage in Spotlight Synthetic Aperture Radars (SAR) and the effects each of the individual PSK signals sidelobe structure has on SAR imagery. The specific PSK codes studied were the Frank code, P1 code, P2 code, P3 code and P4 code. A mathematical approach was used to define SAR limitations from signal parameters, and simulations were used to investigate an individual signal parameter s effects on the sidelobe structure in SAR images. Simulations were used to generate spatially diverse targets, collect each target s unique echo and apply cross-correlation match filtering and pulse integration to detect each returned echo from the targeted area. Results show the P1 and Frank codes to be the most promising based on the selected parameter presented in this thesis. The P4 code may be better given additional processing to remove range ambiguities, enhancing its unambiguous range.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2015
Accession Number
ADA632269

Entities

People

  • Danny M. Lang

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Algorithms
  • Carrier Frequencies
  • Coordinate Systems
  • Detection
  • Detectors
  • Electrical Engineering
  • Filtration
  • Geometry
  • Image Processing
  • Radar
  • Radar Cross Sections
  • Radar Signals
  • Signal Generators
  • Signal Processing
  • Simulations
  • Synthetic Aperture Radar
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Computer Vision.
  • Medical Imaging.