Due to the fact that the error surface of adaptive infinite impulse response (IIR) systems is generally nonlinear and multimodal, the conventional derivative based techniques fail when used in adaptive identification of such systems. In this case, global optimization techniques are required in order to avoid the local minima. Harmony search (HS), a musical inspired metaheuristic, is a recently ...

Cordic based IIR digital lters possess desirable properties for VLSI implementation such as local connection, regularity, and good nite word-length behavior, but can't be pipelined to ner levels (such as bit or multi-bit levels) due to the presence of feedback loops. In this paper, a pipelining method for the cordic based IIR digital lters is proposed using the constrained lter design methods a...

An explicit formula for the impulse response of a discrete-time causal linear time-varying infiniteimpulse-response (IIR) system in terms of the system parameters is obtained from the solution of a linear difference equation with variable coefficients. The case of a linear time-invariant system is also discussed. The results are used to approximate an IIR system by a finite-impulse-response sys...

| Cordic based IIR digital lters possess desirable properties for VLSI implementation such as local connection, regularity, and good-nite word-length behavior, but can't be pipelined to ner levels (such as bit or multi-bit levels) due to the presence of feedback loops. In this paper, a pipelining method for the cordic based IIR digital lters is proposed using the constrained lter design methods...

The study aims for a comparative study of butyl rubber (IIR) and bromobutyl rubber (BIIR) based on spectroscopic, dielectric and thermal characterization. Using FTIR, complete vibrational analysis of butyl rubber and bromobutyl rubber are made available which confirms their chemical structure and the functional groups present in them. The effect of microwave frequency, namely 10 GHz and 26 GHz ...

Bayesian reconstruction methods are slow and have been avoided in 3D ultrasound, since fast algorithms are required. This paper tries to overcome this difficulty by presenting a fast reconstruction algorithm designed in a Bayesian framework, based on data dependent IIR filtering. This allows to obtain the benefits of Bayesian volume reconstruction and the computationally efficiency of IIR recur...

This paper introduces two new characterizations of the Top Trading Cycles algorithm. The key to our characterizations is a new condition, independence of irrelevant rankings (IIR). Intuitively, a mechanism satisfies IIR if whenever an agent’s ranking at an object is irrelevant to her assignment, then it is irrelevant to the assignment of all agents. We demonstrate that a mechanism is Pareto eff...

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....

The paper presents a new optimized implementation of IIR biquad filtration routine for highperformance 16-bit fixed point Blackfin DSPs. The core of hand-optimized routine uses both MAC units available in Blackfin architectures and in contrary to other available solutions it does not produce pipeline stalls in the DSP control and MAC units. The proposed core is the fastest currently available I...

Optimal methods for designing multiplierless finite-impulse response (FIR) and infinite-impulse response (IIR) filters with cascaded prefilter-equalizer structures are proposed. Assuming that an FIR filter consists of a cyclotomic polynomial (CP) prefilter and an interpolated second order polynomial (ISOP) equalizer, in the proposed method, the prefilter and equalizer are simultaneously designe...