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SYSTEMS AND METHODS FOR DISABLING ADAPTATION IN AN ADAPTIVE FEEDFORWARD CONTROL SYSTEM
SYSTEMS AND METHODS FOR DISABLING ADAPTATION IN AN ADAPTIVE FEEDFORWARD CONTROL SYSTEM
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机译:自适应前馈控制系统中禁用自适应的系统和方法
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摘要
A system and method for disabling adaptation in an adaptive feedforward control system at low speeds. The method includes generating a noise signal representative of undesired noise detected by a noise sensor of a vehicle and generating a noise-cancellation signal via a controller within the vehicle. Residual noise resulting from the combination of the acoustic energy of the noise-cancellation signal and the undesired noise is detected by a reference sensor, which generates an error signal based on the residual noise. The error signal and a speed signal from a speed sensor on the vehicle are transmitted to an adaptive processing module for the generation of a filter update signal. The adaptive processing module selectively permits or prevents the filter update signal to adapt filter coefficients of a filter when the speed signal is within a set of conditions.
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