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Cascaded realization of complex adaptive IIR notch filters

Satoshi Nishimura, Hai-Yun Jiang

Open publisher page 5 citations

Abstract

In this paper, we present a new structure for complex adaptive IIR notch filter which is useful for the rejection of narrow-band interference from broad-band signals in QPSK communication systems. The proposed structure is based on the direct form first-order complex notch filter using gradient-based algorithm. By using the proposed first-order section, a new cascaded structure for complex adaptive notch filter has been shown. The results of computer simulation are shown which confirm the theoretical prediction.

About this research paper

What this paper is about

In this paper, we present a new structure for complex adaptive IIR notch filter which is useful for the rejection of narrow-band interference from broad-band signals in QPSK communication systems. The proposed structure is based on the direct form first-order complex notch filter using gradient-based algorithm. By using the proposed first-order section, a new cascaded structure for complex adaptive notch filter has been shown. The results of computer simulation are shown which confirm the theoretical prediction.

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OpenAlex reports 5 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

In this paper, we present a new structure for complex adaptive IIR notch filter which is useful for the rejection of narrow-band interference from broad-band signals in QPSK communication systems. The proposed structure is based on the direct form first-order complex notch filter using gradient-based algorithm. By using the proposed first-order section, a new cascaded structure for complex adaptive notch filter has been shown. The results of computer simulation are shown which confirm the theoretical prediction.

Key concepts: Band-stop filter, Infinite impulse response, Realization (probability), Adaptive filter, 2D Filters, Interference (communication), Computer science, Filter (signal processing)

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