of;
Electrical;
Engineering,;
Shandong;
University,;
Jinan;
250100,;
Ghina;
of;
Electrical;
Engineering,;
Shandong;
Technician;
Institute,;
Jinan;
250200,;
China;
of;
Dispatching;
Centre,;
Shandong;
Electric;
Power;
Corporation,;
Laiwu;
271100,;
China;
);
微弱信号检测; Duffing振子; 阻尼比; 小扰动; Duffing方程; 混沌系统; 仿真; 临界状态;