OPTIMAL PLACEMENT OF SOURCES AND SENSORS WITH THE MINIMAX CRITERION FOR ACTIVE CONTROL OF A ONE-DIMENSIONAL SOUND FIELD

✍ Scribed by P. Sergent; D. Duhamel

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 341 KB
• Volume: 207
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1997.1155

✦ Synopsis

The optimization of the placement of secondary sources and error sensors can enhance the efficiency of active noise control. Since the classic quadratic cost functions are not adapted to the search of the optimal placement, it is shown that the ''minimax'' criterion-minimization of the largest squared pressure at a number of distributed points-better suits the strategy of selection in the placement of sources and sensors. Sufficient numbers of sources and sensors, their locations and the volume velocity of each secondary source are found simultaneously, in a short computation time, by solving a unique linear programming problem. Bounds on the volume velocity are introduced easily. If the number of sources is prescribed, a mixed programming problem is solved. This paper is devoted to the application of this method in a one-dimensional enclosure with rigid walls.