CAJ | 학술논문

杜芬方程是一种重要的动力系统,针对该系统的混沌参数调制解调问题,1)在研究三维杜芬系统基础上,通过对常量参数进行控制建立了一种新的杜芬参数调制系统；2)依据系统混沌状态在2个中心点出现的概率,设计了解调数学表达式,该解调方法具有不需要收发系统同步即可实现数字信息解调的优点；3)给出了新的杜芬系统运行轨迹和解调仿真结果,结果表明该系统在保持混沌状态不变的情况下,仍能有效地实现数字信息的调制和解调。
두분방정시일충중요적동력계통,침대해계통적혼돈삼수조제해조문제,1)재연구삼유두분계통기출상,통과대상량삼수진행공제건립료일충신적두분삼수조제계통；2)의거계통혼돈상태재2개중심점출현적개솔,설계료해조수학표체식,해해조방법구유불수요수발계통동보즉가실현수자신식해조적우점；3)급출료신적두분계통운행궤적화해조방진결과,결과표명해계통재보지혼돈상태불변적정황하,잉능유효지실현수자신식적조제화해조。
Duffing equation is a kind of important power system.Aiming at modulation and demodulation of chaos parameters in this system,firstly,a new modulation system of Duffing parameter is established in this paper by controlling constant parame-ters based on three-dimensional Duffing system.Secondly,mathematical expressions are designed according to the probability of chaotic state appearing at two centre points.This kind of demodulation method has the advantage of realizing digital information demodulation without synchronization of transmit-receive system.Lastly,demodulation results and the new running track of Duffing system are given in this paper.Simulation results show that this new system can effectively realize modulation and demodulation of digital information under the chaotic state unchanged.