Proceedings PaperDesign and performance analysis of optoelectronic adaptive infinite-impulse response filters
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Adaptive infinite-impulse response (IIR) filters can be used for a variety of digital communication and digital signal processing problems, such as, linear prediction, adaptive notch filtering, adaptive differential pulse code modulation, channel equalization, and adaptive array processing [1 ] . In such applications an adaptive IIR filter can provide a better performance than the standard adaptive FIR filters because hR filters can track both zeroes and poles. Also to achieve a specified level of performance an IIR filter requires fewer coefficients than the corresponding FIR filters . Many types of optoelectronic adaptive FIR filters based on fiber optics or acousto optics have been developed over the last few years [2,3 ]. Design and fabrication of optoelectronic adaptive IIR signal processors is a goal of our research.