TY - GEN
T1 - Robust Acoustic Contrast Control with Positive Semidefinite Constraint Using Iterative POTDC Algorithm
AU - Zhang, Junqing
AU - Shi, Liming
AU - Christensen, Mads G.
AU - Zhang, Wen
AU - Zhang, Lijun
AU - Chen, Jingdong
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Personal sound zone systems require to know the acoustic transfer functions (ATFs) between the loudspeakers and matching microphones, which in general have to be measured in advance. As the measurement is affected by such factors as sensors' position mismatches and environmental changes, deviation of the measured ATF-s from the true ones is unavoidable and such perturbation may lead to significant performance degradation in sound zone production. In this work, a method is developed for robust acoustic contrast control, which simultaneously considers the norm-bounded uncertainties and a positive semidefinite constraint to ensure the optimization problem to have a solution. Since the problem is non-convex, the polynomial time difference-of-convex functions (POTDC) algorithm is adopted to identify the optimal solution. Simulations are performed to validate the effectiveness of the proposed method and it demonstrates a performance superior to other existing robust control methods.
AB - Personal sound zone systems require to know the acoustic transfer functions (ATFs) between the loudspeakers and matching microphones, which in general have to be measured in advance. As the measurement is affected by such factors as sensors' position mismatches and environmental changes, deviation of the measured ATF-s from the true ones is unavoidable and such perturbation may lead to significant performance degradation in sound zone production. In this work, a method is developed for robust acoustic contrast control, which simultaneously considers the norm-bounded uncertainties and a positive semidefinite constraint to ensure the optimization problem to have a solution. Since the problem is non-convex, the polynomial time difference-of-convex functions (POTDC) algorithm is adopted to identify the optimal solution. Simulations are performed to validate the effectiveness of the proposed method and it demonstrates a performance superior to other existing robust control methods.
KW - Acoustic contrast control
KW - personal sound zone
KW - polynomial time difference-of-convex functions (POTDC)
KW - positive semidefinite constraint
KW - robustness
UR - http://www.scopus.com/inward/record.url?scp=85141356085&partnerID=8YFLogxK
U2 - 10.1109/IWAENC53105.2022.9914730
DO - 10.1109/IWAENC53105.2022.9914730
M3 - 会议稿件
AN - SCOPUS:85141356085
T3 - International Workshop on Acoustic Signal Enhancement, IWAENC 2022 - Proceedings
BT - International Workshop on Acoustic Signal Enhancement, IWAENC 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th International Workshop on Acoustic Signal Enhancement, IWAENC 2022
Y2 - 5 September 2022 through 8 September 2022
ER -