Adaptive detection and enhancement of multiple sinusoids using a cascade IIR filter
- 6 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 2647-2650 vol.3
- https://doi.org/10.1109/iscas.1988.15484
Abstract
A constrained adaptive IIR (infinite-impulse-response) filter consisting of a cascade of biquadratic notch sections is used to track multiple sinusoids. The structure can be used to isolate individual sinusoids. It is shown that, for small changes around the optimum solution, the proposed update algorithm approximates the Gauss-Newton update without requiring a matrix inversion. Furthermore, the transient response is approximately independent of the number of sinusoids or their power levels. Important adaptive line enhancement performance criteria such as signal-to-noise improvement ratio and the bias in the frequency estimate assuming white noise are derived for the single-sinusoid case.<>Keywords
This publication has 7 references indexed in Scilit:
- Detection of multiple sinusoids using a parallel ALEPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Detection of multiple sinusoids using an adaptive cascaded structurePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Detection and identification of sinusoids in broadband noise via a parallel recursive ALEPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- An adaptive IIR structure for sinusoidal enhancement, frequency estimation, and detectionIEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
- Adaptive filters suitable for real-time spectral analysisIEEE Transactions on Circuits and Systems, 1986
- A minimal parameter adaptive notch filter with constrained poles and zerosIEEE Transactions on Acoustics, Speech, and Signal Processing, 1985
- Adaptive notch filtering for the retrieval of sinusoids in noiseIEEE Transactions on Acoustics, Speech, and Signal Processing, 1984