Title :
A fixed-point roundoff error analysis of adaptive notch filters
Author :
Nishimura, Shotaro
Author_Institution :
Dept. of Comput. Sci., Shimane Univ., Matsue, Japan
Abstract :
Methods to analyze the convergence and steady-state characteristics of an adaptive notch filter when the effects of fixed-point arithmetic are taken into account are presented. The adaptive detection of a sinusoid with white Gaussian noise is investigated. The reduction of these effects by means of error spectrum shaping is also discussed. The results of computer simulation are shown. These confirm the theoretical prediction
Keywords :
adaptive filters; convergence of numerical methods; digital filters; notch filters; roundoff errors; white noise; IIR filter; adaptive detection; adaptive notch filters; computer simulation; convergence; effects of fixed-point arithmetic; error spectrum shaping; fixed-point roundoff error analysis; sinusoid; steady-state characteristics; white Gaussian noise; Adaptive filters; Convergence; Electronic switching systems; Error analysis; Finite impulse response filter; Frequency; IIR filters; Roundoff errors; Steady-state; Transfer functions;
Conference_Titel :
Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-0510-8
DOI :
10.1109/MWSCAS.1992.271283
