抗噪声源时滞引起的尖峰噪声的抑制

Suppression of Peak Noise Indueced by Time Delay of the Anti-noise Source

针对抗噪声源时滞引起的尖峰噪声,分析周期信号与非周期随机信号不同频率和不同模拟延时情况下信号叠加后的降噪效果及尖峰噪声产生,并对因时滞产生的尖峰噪声进行处理,提出一种利用模糊控制抑制有源噪声控制中产生的尖峰信号的抑制策略,仿真验证利用模糊控制降噪及抑制尖峰噪声的效果。

Aiming at the peak noise induced by the time delay of the anti-noise source, the noise reduction effect and peak noise generation of periodic signals and random signals with different frequencies and different signal superimposed analog delay were analyzed. The peak noise induced by time-delay was processed. A kind of peak noise suppression strategy based on the fuzzy inhibit active noise control was proposed. Its effect for peak noise reduction was verified by the simulation result.