• DocumentCode
    3344773
  • Title

    Voice and data privacy using chaotic time sequences

  • Author

    Webb, Joseph A.

  • Author_Institution
    CES Ltd., Christchurch, New Zealand
  • fYear
    1992
  • fDate
    29 Sep-1 Oct 1992
  • Abstract
    A voice and data privacy system which is both very secure, and a powerful error correction algorithm, is described. A convolved, random, chaotic sequence of impulses is used to transmit data along the channel. The resultant signal in the channel closely resembles gaussian random noise, yet it is confined to the same bandwidth as that of the original data. A second, complementary sequence of pseudorandom, chaotic impulses is then derived which deconvolves the data and returns it to a normal signal for demodulation. Privacy is assured by the unique nature of the random code, and trillions of codes are possible in a given channel. Errors are corrected by the bridging effect of the long sequence, and correction of as many as 100 errors in series has been demonstrated by using very long time sequences
  • Keywords
    chaos; cryptography; data communication systems; data privacy; error correction codes; time series; voice communication; Cardinal Encryption System; chaotic time sequences; data privacy; error correction algorithm; pseudorandom chaotic impulses; voice privacy; Chaos; Chaotic communication; Convolution; Convolutional codes; Data privacy; Error correction; Finite impulse response filter; Frequency; Signal processing; Signal processing algorithms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Universal Personal Communications, 1992. ICUPC '92 Proceedings., 1st International Conference on
  • Conference_Location
    Dallas, TX
  • Print_ISBN
    0-7803-0591-4
  • Type

    conf

  • DOI
    10.1109/ICUPC.1992.240825
  • Filename
    240825