Method and system for active noise cancellation

Methods and systems for active noise cancellation. In order to improve and adapt the noise cancellation capability of a movable noise generating platform (12) for a city environment (32), the invention proposes an active noise cancellation method in which the noise generating platform (12) records noise data (13) with an array of microphones and sends the noise data (13) to a noise cancellation processing system (24). The noise data (13) is converted into inverse wave sound data (25) which is again converted by the fixed loudspeaker array into sound inverse waves having the potential to cancel or at least reduce noise from the noise generating platform (12). The noise-generating platform (12) may be an aircraft or a ground vehicle (e.g., a high-speed train). 用于主动噪声消除的方法和系统。为了改进和适应用于城市环境(32)的可移动噪声产生平台(12)的噪声消除能力，本发明提出了主动噪声消除方法，在该主动噪声消除方法中，噪声产生平台(12)利用麦克风的阵列来记录噪声数据(13)并将该噪声数据(13)发送至噪声消除处理系统(24)。噪声数据(13)被转换成反波声音数据(25)，该反波声音数据(25)再次由固定扬声器阵列转换成具有消除或至少降低来自噪声产生平台(12)的噪声的潜力的声音反波。噪声产生平台(12)可以是航空飞行器或地面交通工具(例如高速列车)。