In this paper, the design of wideband digital integrator is presented. First, the reconstruction formula of interlaced sampling method is reviewed briefly. Then, the Simpson integration rule and reconstruction formula...
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In this paper, the design of digital IIR integrator is investigated. First, the radial basis function (RBF) interpolation method is described. Then, fractionally delayed sample estimation of discrete-time sequence is ...
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Wireless Sensor Networks (WSNs) is composed of sink and many sensor nodes. It has the great scope to monitor environment and the characteristics of wireless communications. Relatively, the advantages of sensor node br...
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Dependable communication capabilities, effective opportunistic resource allocation and information Dissemination strategy are amongst the most important technical requirements for the tactical information Disseminatio...
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In this paper, modular cascade structures are presented to design one-dimensional (1-D) and two-dimensional (2-D) variable fractional delay (VFD) filters. First, a modular cascade structure for implementing 1-D VFD fi...
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In this paper, the design of variable fractional order differentiator (VFOD) using the infinite product expansion is presented. First, the infinite products of hyperbolic cosine and sine functions are applied to trans...
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In this paper, the design of digital differentiator is presented. First, the interpolation formula of discrete-time sequence is derived by using discrete Hartley transform (DHT). Then, the DHT-based interpolation form...
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In this paper, the design of digital differentiator is presented. First, the interpolation formula of discrete-time sequence is derived by using discrete Hartley transform (DHT). Then, the DHT-based interpolation formula is applied to design FIR digital differentiator by using backward difference formula. The filter coefficients are easily computed because closed-form design is obtained. Finally, design examples are demonstrated to show the proposed method has smaller design error than the conventional window method and maximally flat design using the same parameters. copyright by EURASIP.
In this paper, the closed-form design of fractional delay filter (FDF) using discrete sine transform (DST) is presented. First, the DST-based interpolation method is applied to reconstruct the continuous-time signal f...
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In this paper, the design of variable fractional delay filter is investigated. First, the discrete Fourier transform (DFT) interpolation approach is described. Then, the Taylor series expansion and DFT interpolation f...
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In this paper, the improved designs of IIR digital Al-Alaoui and Tustin differentiators are presented. First, the fractional delay is used to reduce the errors of differentiators in the high frequency region. Then, th...
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In this paper, the improved designs of IIR digital Al-Alaoui and Tustin differentiators are presented. First, the fractional delay is used to reduce the errors of differentiators in the high frequency region. Then, the Richardson extrapolation is utilized to generate high-accuracy results while using loworder formulas. Next, conventional Lagrange FIR fractional delay filter is directly applied to implement the designed IIR differentiator. Finally, several numerical examples are illustrated to demonstrate the effectiveness of this improved design approach. copyright by EURASIP.
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