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Active noise reduction method and device based on FxLMS algorithm and active noise reduction door
The invention provides an active noise reduction method and device based on an FxLMS algorithm and an active noise reduction door. The method comprises the steps of obtaining noise data to be subjected to noise reduction through a preset microphone array; the noise data to be subjected to noise reduction comprises noise signals collected by each microphone in a microphone array; according to a wave velocity forming algorithm, carrying out sound source localization on the noise data to be subjected to noise reduction to obtain a noise source position; and obtaining an optimal noise reduction microphone position according to the noise source position, starting a microphone corresponding to the optimal noise reduction microphone position in the microphone array, and generating a resonance reverse spin wave based on a preset FxLMS algorithm to perform active noise reduction. According to the invention, on the basis of realizing accurate positioning of a noise source by configuring a microphone array loading noise positioning algorithm, resonance reverse spin wave output is controlled in combination with an improved FxLMS algorithm which adjusts a variable step length based on a Golopton function and adopts an Adam algorithm to optimize gradient calculation, so that the flexibility and accuracy of active noise reduction processing can be effectively improved.
本发明提供了一种基于FxLMS算法的主动降噪方法、装置及主动降噪门，所述方法包括：通过预设的麦克风阵列获取待降噪噪音数据；所述待降噪噪音数据包括麦克风阵列中各个麦克风采集的噪音信号；根据波速形成算法对待降噪噪声数据进行声源定位，得到噪声声源位置；根据噪声声源位置得到最优降噪麦克风位置，并启用麦克风阵列中与最优降噪麦克风位置对应的麦克风，基于预设FxLMS算法产生共振逆旋波进行主动降噪。本发明通过配置麦克风阵列加载噪声定位算法实现噪声声源精准定位的基础上，结合基于冈珀茨函数调整可变步长且采用Adam算法优化梯度计算的改进FxLMS算法控制共振逆旋波输出，可有效提升主动降噪处理的灵活性和精准性。
Active noise reduction method and device based on FxLMS algorithm and active noise reduction door
The invention provides an active noise reduction method and device based on an FxLMS algorithm and an active noise reduction door. The method comprises the steps of obtaining noise data to be subjected to noise reduction through a preset microphone array; the noise data to be subjected to noise reduction comprises noise signals collected by each microphone in a microphone array; according to a wave velocity forming algorithm, carrying out sound source localization on the noise data to be subjected to noise reduction to obtain a noise source position; and obtaining an optimal noise reduction microphone position according to the noise source position, starting a microphone corresponding to the optimal noise reduction microphone position in the microphone array, and generating a resonance reverse spin wave based on a preset FxLMS algorithm to perform active noise reduction. According to the invention, on the basis of realizing accurate positioning of a noise source by configuring a microphone array loading noise positioning algorithm, resonance reverse spin wave output is controlled in combination with an improved FxLMS algorithm which adjusts a variable step length based on a Golopton function and adopts an Adam algorithm to optimize gradient calculation, so that the flexibility and accuracy of active noise reduction processing can be effectively improved.
本发明提供了一种基于FxLMS算法的主动降噪方法、装置及主动降噪门，所述方法包括：通过预设的麦克风阵列获取待降噪噪音数据；所述待降噪噪音数据包括麦克风阵列中各个麦克风采集的噪音信号；根据波速形成算法对待降噪噪声数据进行声源定位，得到噪声声源位置；根据噪声声源位置得到最优降噪麦克风位置，并启用麦克风阵列中与最优降噪麦克风位置对应的麦克风，基于预设FxLMS算法产生共振逆旋波进行主动降噪。本发明通过配置麦克风阵列加载噪声定位算法实现噪声声源精准定位的基础上，结合基于冈珀茨函数调整可变步长且采用Adam算法优化梯度计算的改进FxLMS算法控制共振逆旋波输出，可有效提升主动降噪处理的灵活性和精准性。
Active noise reduction method and device based on FxLMS algorithm and active noise reduction door
基于FxLMS算法的主动降噪方法、装置及主动降噪门
ZHENG JIANHUI (author) / YIN YIMIN (author)
2023-09-19
Patent
Electronic Resource
Chinese
IPC:
G10K
Tonerzeugungsvorrichtungen
,
SOUND-PRODUCING DEVICES
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
/
G10L
Analyse oder Synthese von Sprache
,
SPEECH ANALYSIS OR SYNTHESIS
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