Construction method and performance analysis of chaotic frequency-hopping sequences based on Logistic-Sine-Cosine mapping
In order to solve the problems of low dimensional chaotic mapping,limited chaotic behavior,and discontinu-ous chaotic interval,a new construction method of chaotic frequency-hopping sequence was proposed.First,a new Logistics-Sine-Cosine chaotic map was generated by Cosine transformation method combined with Logistic and Sine mapping.Then,the intermediate multi-bit extraction method was used to quantify the sequence generated by the map-ping as a frequency-hopping sequence.Finally,experiments show that the chaotic frequency-hopping sequence can effec-tively improve the randomness and complexity of the sequence under the premise of maintaining good balance and Ham-ming correlation,and can strengthen the anti-prediction and anti-interference in the communication process.
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