基于模态控制法的平板扬声器指向性控制算法研究
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Research on directivity control algorithm of flat⁃panel loudspeakers based on modal control method
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图4 不同覆盖角等值线图,覆盖角: (a) 20°;(b) 80°;(c) 140°
Fig.4 Contour diagrams of different coverage angles,coverage angles:(a) 20°,(b) 80°,(c) 140°