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  • Gated interferometric imaging of pulsars to detect off-pulse emission 
    ATHREYA, RAMANA; Basu, Rahul; Mitra, Dipanjan (IEEE, 2011-08)
    We detected off-pulse emission from two pulsars, B0525+21 and B204516, at 325 MHz using the Giant Metrewave radio telescope. Using the instrument as a high time resolution interferometer and off-line gating we imaged the ...
  • Sub‐Planck structures and Quantum Metrology 
    Panigrahi, Prasanta K.; KUMAR, ABHIJEET; Roy, Utpal; Ghosh, Suranjana (AIP Publishing, 2011-09)
    The significance of sub‐Planck structures in relation to quantum metrology is explored, in close contact with experimental setups. It is shown that an entangled cat state can enhance the accuracy of parameter estimations. ...
  • Multichannel digital watermarking of color images using SVD 
    Agarwal, Rashmi; SANTHANAM, M. S.; Venugopalan, K. (IEEE, 2011-11)
    In this paper we propose a new invisible, non-blind digital watermarking scheme for color images based on singular vector domain (SVD). In this new approach, same or different watermarks can be embedded into the three color ...

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