Title :
The isolation of undistorted sinusoids in real-time
Author :
Martin, Kenneth W.
Author_Institution :
Integrated Circuits & Syst. Lab., California Univ., Los Angeles, CA, USA
Abstract :
A single-input, multiple-output adaptive filter that takes a multisinusoidal input signal and produces the individual sinusoid at each of the outputs is described. The individual outputs have amplitudes and phases identical to those of the components of the original input signal. The filter can be adapted in real time using approximate Gauss-Newton updates without recourse to any matrix operations or division. The filter is an extension of a cascade adaptive IIR (infinite-impulse-response) notch filter reported previously
Keywords :
adaptive filters; cascade networks; digital filters; signal processing; approximate Gauss-Newton updates; cascade adaptive IIR notch filter; infinite-impulse-response; multiple-output adaptive filter; multisinusoidal input signal; real-time; single-input; undistorted sinusoids isolation; Adaptive filters; Band pass filters; IIR filters; Least squares methods; Newton method; Phased arrays; Radar tracking; Recursive estimation; Resonant frequency; Sampling methods;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100792
