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Detection of Arbitrary Frequency Ultrasonic Guided Wave Signals Based on the Time-Shift Duffing Oscillator.
Jing Wu
Jinghua Cai
Yan Wang
Haoran Liang
Zhongming Liu
Hongwei Ma
Published in:
IEEE Access (2021)
Keyphrases
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weak signal
duffing oscillator
signal detection
weak signal detection
spectrum analysis
automatic detection
object detection
low snr
frequency modulation
short time fourier transform
false alarms
low signal to noise ratio
frequency analysis
fundamental frequency