电讯技术2017，Vol.57Issue(11)：1266-1271,6.DOI:10.3969/j.issn.1001-893x.2017.11.007
应用锁相环技术判别混沌相变的方法
Distinguishing Chaotic Phase Transformation by Phase-locked Loop Technology
摘要
Abstract
For the problem of high complexity of chaotic phase change method based on classical Lyapunov exponential method ,a new method is proposed for discriminating chaotic phase transition by using phase-locked loop( PLL) technique. Firstly, the analytical characteristics of chaotic system are deduced, and the frequency components of the system are analyzed. Then, the digital PLL model for chaotic system is con-structed to study the frequency characteristics of chaotic and large periodic states. Finally,the new chaotic phase change method based on PLL technology is proposed. The simulation results show that compared with the Lyapunov exponential method, the proposed method has a faster discriminant speed of one order of magnitude, and when the detection error rate is 0, the performance is improved by nearly 2 dB. The new method using the PLL technology is simple and easy to judge, and it provides a new distinguishing method for the engineering application of chaotic phase change.关键词
微弱信号检测/混沌系统/相变判别/频率特性/数字锁相环/检测性能Key words
weak signal detection/chaotic system/phase discrimination/frequency characteristics/digital phase-locked loop/detection performance分类
信息技术与安全科学引用本文复制引用
王鹏,芮国胜,张洋,刘林芳..应用锁相环技术判别混沌相变的方法[J].电讯技术,2017,57(11):1266-1271,6.基金项目
国家自然科学基金资助项目(41606117,41476089,61671016) （41606117,41476089,61671016）
