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- W2955647718 abstract "Based on a prediction method of the scattered sound pressure, an active control system was proposed in previous work for the three-dimension scattered radiation, where all the relevant simulations and experiments were implemented in three-dimensional free sound field. However, for practical applications, such as the anti-eavesdropping system or the stealth system for submarines, the sound field conditions are usually complex, and the most common case is the one with reflecting surface. It is questionable whether the previous control system is still effective in non-free sound field, or what improvements should be operated to ensure the control effect. In this article, based on the mirror image principle, two methods of calculating the control source strengths are proposed for the scattered radiation control, and numerical simulations with one-channel and multi-channel system are implemented to detect the corresponding control effect. It is seen that the local active control for the scattered radiation is still effective, and the reduction of the sound pressure level as well as the control area is extended with the increasement of the error sensors and control sources." @default.
- W2955647718 created "2019-07-12" @default.
- W2955647718 creator A5075943848 @default.
- W2955647718 date "2019-05-01" @default.
- W2955647718 modified "2023-09-25" @default.
- W2955647718 title "Active control of the scattered radiation with a reflecting surface" @default.
- W2955647718 doi "https://doi.org/10.3397/1/376717" @default.
- W2955647718 hasPublicationYear "2019" @default.
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