Identification and Compensation of the Electrodynamic Transducer Nonlinearities (+ POSTER)


Schurer, Hans and Nijmeijer, Alex G.J. and Boer, Mark A. and Slump, Cornelis H. and Herrmann, Otto E. (1997) Identification and Compensation of the Electrodynamic Transducer Nonlinearities (+ POSTER). In: IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1997, 21-24 April 1997, Munich, Germany (pp. pp. 2381-2384).

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Abstract:Based on a simplified nonlinear lumped element model of the electrodynamic loudspeaker in either a closed or a vented cabinet, a new nonlinear controller is derived, simulated and implemented on a DSP. The Volterra series expansion, a well known functional expansion to model nonlinear systems, is used to estimate the nonlinear parameters from distortion measurements. The controller is directly based on the nonlinear differential equation, and is tested for the case of a low frequency electrodynamic loudspeaker in a closed cabinet. Digital implementation is realized on a general purpose TMS320C30 DSP development board, using the automatic code generation from schematic entry of the Alta-Group SPW software
Item Type:Conference or Workshop Item
Copyright:©1997 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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