自适应滤波的应用：预测估计 d(k) time Adaptive y(k) w州 △ time s() S(k-△) Filter e(k A-decorrelation parameter time 11
自适应滤波的应用：预测估计 11
自适应滤波的应用：消除干扰 用于消除未知的干扰信号 Primary signal Reference Adaptive System signal filter output 1 u=input of adaptive filter-reference signal y-output of adaptive filter d=desired response=primary signal e=d-y-estimation error-system output 12
自适应滤波的应用：消除干扰 • 用于消除未知的干扰信号 • Parameters • u=input of adaptive filter=reference signal • y=output of adaptive filter • d=desired response=primary signal • e=d-y=estimation error=system output 12
自适应滤波的应用：消除噪声 Primary Microphone Reference Microphone ADC s(k)+n(k) d(k) n() Adaptive ADC Filter e(K)≈s(k) Reference y Microphone 13
自适应滤波的应用：消除噪声 13
自适应滤波的应用：消除噪声 ADC time Signal Noise d(k) Adaptive e(k) ADC- Filter y(k) X灯 time Noise Reference time Signal
自适应滤波的应用：消除噪声 14