Qiwen Ran

Summary

Affiliation: Harbin Institute of Technology
Country: China

Publications

  1. ncbi request reprint Deficiencies of the cryptography based on multiple-parameter fractional Fourier transform
    Qiwen Ran
    State Key Laboratory of Tunable Laser Technology Research, Institute of Optic Electronics, Harbin Institute of Technology, Harbin 150001, China
    Opt Lett 34:1729-31. 2009
  2. ncbi request reprint Wavelet transforming characteristic of a lens
    Liying Tan
    National Key Laboratory of Tunable Technology, Harbin Institute of Technology, China
    Appl Opt 41:6182-6. 2002

Collaborators

  • Liying Tan
  • Qi Wang
  • Jing Ma

Detail Information

Publications2

  1. ncbi request reprint Deficiencies of the cryptography based on multiple-parameter fractional Fourier transform
    Qiwen Ran
    State Key Laboratory of Tunable Laser Technology Research, Institute of Optic Electronics, Harbin Institute of Technology, Harbin 150001, China
    Opt Lett 34:1729-31. 2009
    ..Lett.33, 581 (2008)]. A modified method is proposed to avoid all the deficiencies. Security and reliability are greatly improved without increasing the complexity of the encryption process...
  2. ncbi request reprint Wavelet transforming characteristic of a lens
    Liying Tan
    National Key Laboratory of Tunable Technology, Harbin Institute of Technology, China
    Appl Opt 41:6182-6. 2002
    ..Subsequent analysis indicates that the lens has a wavelet-transforming characteristic and that the introduction of a Gaussian frequency-modulated complex-valued wavelet function conforms to the actual lens...