Adaptive sinusoid detection using IIR notch filters and multirate techniques

A structure for the detection of sinusoids using adaptive infinite impulse response (IIR) notch filters and multirate techniques is presented. By using the frequency enhancement property of the decimation in time process the structure avoids the use of almost unity radius notch filters. Computer simulations are used to demonstrate the performance of this method for the detection of closely spaced sinusoids and tracking of nonstationary signals. The method seems to be particularly useful for real-time and low-cost applications.<<ETX>>

[1]  Petre Stoica,et al.  Performance analysis of an adaptive notch filter with constrained poles and zeros , 1988, IEEE Trans. Acoust. Speech Signal Process..

[2]  Kotaro Hirano,et al.  Mean-squared error analysis of an adaptive notch filter , 1989, IEEE International Symposium on Circuits and Systems,.

[3]  Samuel D. Stearns,et al.  An adaptive IIR structure for sinusoidal enhancement, frequency estimation, and detection , 1986, IEEE Trans. Acoust. Speech Signal Process..

[4]  Arye Nehorai.  A minimal parameter adaptive notch filter with constrained poles and zeros , 1985, IEEE Trans. Acoust. Speech Signal Process..

[5]  S. Kung,et al.  Adaptive notch filtering for the retrieval of sinusoids in noise , 1984 .

[6]  K. W. Martin,et al.  Adaptive detection and enhancement of multiple sinusoids using a cascade IIR filter , 1989 .

[7]  Sanjit K. Mitra,et al.  Stability bounds for an adaptive IIR notch filter , 1990, IEEE International Symposium on Circuits and Systems.