Adaptive Active Noise Control in Space
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摘要: 根據電力機車噪聲的特點,建立了基于LMS算法的自適應有源降噪系統,設計了室內脈沖響應測量系統,然后在此基礎上對降噪系統進行數字仿真和實際聲學實驗。在仿真中,降噪量可達到40dB,實際聲學實驗中,機車降噪量可達到15dB。Abstract: An adaptive active noise control system based on LMS algorithm is set up.A measure system of impulse response in the room is designed according to the character of the noise in the motor driver cabin.In the adaptive active noise control system,the noise attenuation of the digital simulation is 40dB and the noise attenuation of the actual acoustic experiment is about 15 dB.
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