雙環(huán)摻鉺光纖激光器混沌鍵控保密通信系統(tǒng)理論模型和數(shù)值模擬
Theoretical Model and Its Numerical Simulation in Chaos Shift Keying Secure Communciation System with Dual-ring Erbium-Doped Fiber Lasers
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摘要: 提出雙環(huán)摻鉺光纖激光器激光混沌鍵控保密通信系統(tǒng)及理論模型,通過調(diào)制泵浦光參數(shù)以實現(xiàn)混沌鍵控保密通信;分析了通過參數(shù)調(diào)試補償克服系統(tǒng)參數(shù)失配以減小同步誤差的方法:模擬了兩個單環(huán)摻鉺光纖激光器激光和一個雙環(huán)摻鉺光纖激光器激光分別在0碼和1碼上的混沌同步及其解碼,該系統(tǒng)在相空間,在時域和頻域都具有很好的保密性能和反破譯能力。
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關(guān)鍵詞:
- 混沌; 同步; 保密; 通信; 雙環(huán)摻鉺光纖激光器
Abstract: Chaos shift keying secure communication system with dual-ring erbium-doped fiber laser is presented. The chaos shift keying is realized by modulating parameters of the pump light. A matching method to reduce the synchronization error by modulating the parameters to compensate the system parameter mismatches is numerically studied. Chaotic synchronizations and decoding at 0 and 1 bit, respectively, are numerically simulated between two single-ring erbium-doped fiber lasers and a dual-ring single-mode erbium-doped fiber lasers. The system shows the good ability of robust security and anti-uncoverage in phase-space, time-domain and frequency-domain. -
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