TY - JOUR
T1 - Modified FIR filter with phase compensation technique to feedforward active noise controller design
AU - Shyu, Kuo Kai
AU - Chang, Cheng Yuan
N1 - Funding Information:
Manuscript received June 3, 1998; revised May 30, 1999. Abstract published on the Internet December 23, 1999. This work was supported by the National Science Council of Taiwan, R.O.C., under Grant 89-2213-E-008-042. The authors are with the Department of Electrical Engineering, National Central University, Chung-Li 320, Taiwan, R.O.C. (e-mail: [email protected]; [email protected]). Publisher Item Identifier S 0278-0046(00)02497-7.
PY - 2000
Y1 - 2000
N2 - In this paper, a finite-impulse response (FIR) filter with phase compensation is proposed to design the digital controller for active noise cancellation in ducts. This method can overcome the influence of delay effects, which arise from the analog devices, and then help to improve the ability of noise reduction. Moreover, all the control algorithms are implemented in a fixed-point-type digital signal processor that produces an antinoise signal to cancel noise in our experiments. Experiments are demonstrated in a polyvinyl chloride material circular duct. It is proved that, by using the FIR filter with phase compensation, the reduction of broadband noise is about 20 dB, and about 50 dB of narrowband noise. The system also provides the ability to cancel the noise with two harmonic components, like automobile noise.
AB - In this paper, a finite-impulse response (FIR) filter with phase compensation is proposed to design the digital controller for active noise cancellation in ducts. This method can overcome the influence of delay effects, which arise from the analog devices, and then help to improve the ability of noise reduction. Moreover, all the control algorithms are implemented in a fixed-point-type digital signal processor that produces an antinoise signal to cancel noise in our experiments. Experiments are demonstrated in a polyvinyl chloride material circular duct. It is proved that, by using the FIR filter with phase compensation, the reduction of broadband noise is about 20 dB, and about 50 dB of narrowband noise. The system also provides the ability to cancel the noise with two harmonic components, like automobile noise.
UR - http://www.scopus.com/inward/record.url?scp=0033893954&partnerID=8YFLogxK
U2 - 10.1109/41.836361
DO - 10.1109/41.836361
M3 - 期刊論文
AN - SCOPUS:0033893954
SN - 0278-0046
VL - 47
SP - 444
EP - 453
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 2
ER -