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Design and Digital Simulation of New Method for Deinterleaving Radar Complex Signals

keshavrzi, Mahmoud | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44093 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Pezeshk, Amir Mansour; Farzaneh, Forouhar
  7. Abstract:
  8. It is generally accepted that Electronic Warfare has three distinct components: (1) electronic support (ES), (2) electronic attack (EA), and (3) electronic protect (EP). ES is included those measures taken to collect information about an adversary by intercepting radiated emissions. EA refers to attempting to deny adversaries access to their information by radiating energy into their receivers. EP includes activities under taken to prevent an adversary from successfully conducting ES or EA on friendly forces.
    The function of Electronic Support Measurement (ESM) System is considered as a part of the first component (i.e. ES). After receiving emitted signals from various radars by ESM system, several processes are applied to signals such as: deinterleaving, recognition of pulse repetition interval (PRI) modulation, PRI estimation and etc.
    In this thesis, we are worked on design and digital simulation of new methods for de-interleaving, recognition and parameter estimation of complex radar pulse trains. The proposed methods for deinterleaving use some algorithms including Blind Source Separation (BSS) and Sparse Component Analysis (SCA) algorithms. The method presented to recognize PRI modulation uses some specifications such as distribution related to members of sequences obtained from first and second order derivation of TOAs around a constant value and continuity of these sequences. The method presented for PRI estimation uses algorithms such as nonlinear least square and Pisarenko algorithm
  9. Keywords:
  10. Blind Sources Separation (BSS) ; Modulation Recognition ; Pulse Repetition Interval (PRI)Estimation ; Sparse Component Analysis (SCA) ; Electronic Warfare ; Support

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