Digital-Filter-Based Compensation of Case Effect in Sound-Level Meters

• Autorzy: Miękina A. , Podgórski A.
• Języki publikacji: EN

Abstrakty

EN

The methodology for the design of a digital filter, which should compensate the effect of reflections and diffraction from the sound-level meter's casing (the so-called case effect), is presented. The coefficients of the family of the finite impulse response (FIR) filters, which were selected to fulfill the requirements of the compensation, were obtained in the MATLAB environment using the Remez algorithm. The frequency response of the selected designed filter are given. The chosen FIR filter was implemented in an on-chip Enhanced Filter Coprocessor of a fixed point 24-bit digital signal processor of a sound-level meter.

Słowa kluczowe

EN

digital compensation; DSP applications; FIR filter design; Remez algorithm

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2010
• Tom: Vol. 56, No. 3
• Strony: 263--266
• Opis fizyczny: Bibliogr. 16 poz., wykr.

Twórcy

autor

Miękina A.

autor

Podgórski A.

• Institute of Radioelectronics, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warsaw, Poland,

Bibliografia

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