Chaotic Identification to Weak Signals of Automobile
Li Xianglian
(Physics Experiment Center, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016)

Abstract: The chaotic oscillator is valuable for weak signal detection, The cor responding theory is introduced and the adaptive adjustment method conjoined the amplitude with frequency is employed to identify the weak signals. The simulat ion analysis with chaotic detection for weak periodic signals submerged in viole nt noise is carried out. For a cracked flywheel shell in automobile, the real weak vibration signal identification is achieved. A comparison with the correlative studies indicates the validity of this method in automobile part fault analys is.
Keywords: chaos, weak signal, vibration, identification, detection.