ANC in three-dimensional propagation

ANC in three-dimensional propagation

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A coherent method for the analysis and design of active noise control systems, in a three-dimensional nondispersive propagation medium, is presented in this chapter. An analysis of single-input single-output and single-input multi-output control structures is provided. Conditions for the robust operation of such systems on the basis of optimum cancellation are determined. These include the physical extent of cancellation in the medium, relative stability of the inherent feedback loop and controller design. These conditions are interpreted as constraints on the geometric compositions of the system.

Inspec keywords: active noise control; stability; MIMO systems; feedback; control system synthesis

Other keywords: single input single output control structure; active noise control system design; three dimensional propagation; single input multioutput control structure; feedback loop; relative stability; coherent method; geometric system composition; three dimensional nondispersive propagation medium

Subjects: Acoustic noise, its effects and control

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