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
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