Research Of Secure Communication System Based On Hyperchaotic Spread Spectrum Sequence

A research is done in my paper on chaotic maps. Aimed at overcoming the shortcoming that spread spectrum (SS) sequence generated by single map have low system complexity and that initial value is easily estimated by anti-deduct, a new map is constructed, based on Logistic-Map and Tent-Map. This map can be realized easily by digital circuit, and have high system complexity also. Then a new plan in which coefficient hopping is adopted to generate SS sequence is proposed, base on the new map.By analyzing chaotic synchronization, Several of the synchronization method are compared, from which we think the active-passive synchronization method is better than the other. In this paper, synchronization of hyperchaotic systems can be achieved using the actice-passive synchronization method .Chaotic secret communication system based on active-passive pattern has high precision, strong anti-disturbance, practicality , flexibility of the design and high security, and so on.In my paper, the discussion based on hyperchaos and hyperchaotic spread spectrum, Hyperchaos sequence of pseudo-random high for the number of secure communication system can achieve confidentiality requirements. In addition, the paper also covered secure communication using chaos theory used to conceal hyperchaos-chaotic image encryption secure communicat ion.