Whale and dolphin Click-like sound and traditional sonar signal classification method and device
A signal classification and signal technology, applied in measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve the problems of difficult to accurately extract signal features, large fluctuations in classification accuracy rate, low classification accuracy rate, etc., to overcome the classification results Instability, overcoming inaccurate feature extraction, and improving classification accuracy
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[0039] The purpose of the present invention is to overcome the shortcomings of the existing manual classification method for underwater sound signals, such as unstable classification results, heavy workload, and strong subjectivity, and at the same time overcome the inaccurate feature extraction of traditional underwater sound signal automatic classification methods and devices, and the accuracy of classification. The shortcomings of low and poor adaptability provide a complete detection of cetacean Click-like call pulse signals and traditional sonar signals (CW signals, LFM signals and HFM signals), and then analyze the time-frequency characteristics of the signals, and A method and device for accurately extracting the time-frequency characteristics of the signal, and finally using a classifier to accurately classify cetacean click-like call pulse signals and traditional sonar signals.
[0040] The purpose of the present invention is to overcome the shortcomings of the existin...
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