Microphone array-based electric reactor sound signal extraction method, system and device
A microphone array and signal extraction technology, which is applied in the direction of electric devices, measuring devices, instruments, etc., can solve the problems of difficult to accurately extract the acoustic signal of the target reactor, large noise interference, and highly similar acoustic signals
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[0076] Embodiment 1: The present invention provides a reactor acoustic signal extraction method based on a microphone array. The device includes a multi-channel sound collector and an array of at least 9 microphones; each microphone is connected to an interface of the multi-channel sound collector. Noise measurement includes the following steps:
[0077] S1. Eliminate the non-unidirectional noise of the target reactor through the beamforming algorithm based on the masking function;
[0078] S2. Using the underdetermined blind source separation algorithm based on the K-DPC clustering algorithm to eliminate the same direction noise of the target reactor.
[0079] The beamforming algorithm based on the masking function includes the following steps:
[0080] S101. Determine the target reactor;
[0081] S102. Arranging a microphone array and a multi-channel sound collector at a distance of 2 meters from the target reactor;
[0082] S1001. The arrangement of the microphone array ...
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