– In this article, Teaching-learning opposition based optimization (TLOBO) algorithm based on the natural phenomenon of teaching and learning is applied to design an optimal higher order stable low pass (LP) and high pass (HP) IIR digital filter using different design criterion. The original TeachingLearning Based Optimization (TLBO) algorithm has been remodeled by merging the concept of opposi...

This paper presents a real-time, TMS320C40 DSP based implementation of a direct-form adaptive infinite impulse response(IIR) filter using the Least-meansquare(LMS) algorithm. Stability monitoring of the IIR filter during adaptation is discussed. A detailed description of the implementation and hardware platform is also provided.

This paper deals with using MATLAB function and tools for designing first-order analogue Chebysev filters and IIR Chebysev filters. The first part of this paper is focused on a design of analogue filter via Chebyshev approximation approach, i. e. features and mathematical background of this iso-extremal approximation, approximation of normalized low-pass (NLP, also NDP in Czech) filter, and mat...

In this paper we propose the use of a lattice based second order infinite impulse response (IIR) notch filter with a simplified adaptation algorithm for removal of power line frequency from ECG signals. The performance of this filter is better as compared to a second order infinite impulse response (IIR) notch filter for a real time ECG recording systems where the frequency of line varies over ...

This paper proposes a synthesis method of 2-channel IIR paraunitary filter banks by successive extraction of 2-port lattice sections. When a power symmetry transfer function is given, a filter bank is realized as cascade of paraunitary 2-port lattice sections. The method can synthesize both oddand even-order filters with Butterworth or elliptic characteristics. The number of multiplications per...

In some situations of active noise control, infinite impulse response (IIR) filters are more suitable than finite impulse response (FIR) filters owing to the poles in the transfer function. A number of algorithms have been derived for applying IIR filters in active noise control; however, most of them use the direct form IIR filter structure, which faces the difficulties of checking stability a...

In this paper, the designing of decimation filter for sigma-delta (∑-∆) ADC having different oversampling ratio (OSR) is described. The decimation filter perform the operation of down sampling of a high frequency, low resolution signal to Nyquist rate, high resolution digital output. The design of a decimation filter is projected that employs IIR-FIR structure; second order Cascaded Integrator ...

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Noise removal techniques play a vital role in the performance of electrocardiographic (ECG) signal processing systems. ECG signals can be corrupted by various kinds of noise such as baseline wander noise, electromyographic interference, and powerline interference. One of the significant challenges in ECG signal processing is the degradation caused by additive 50 or 60 Hz powerline interference....