In this paper, the design of universal compressive sensing filter based on normal filters including the lowpass, highpass, bandpass, and bandstop filters with different cutoff frequencies (or bandwidth) has been developed to enable signal acquisition with sub-Nyquist sampling. Moreover, to control flexibly the size and the coherence of the compressive sensing filter, as an example, the microstr...

A new current-mode Tow-Thomas biquad filter based on employing current differencing transconductance amplifiers (CDTAs) is introduced. The filter circuit uses two grounded capacitors and realizes a lowpass (LP) and a bandpass (BP) responses, simultaneously. The proposed circuit is electronically tunable by adjusting the biasing current of the CDTAs. The circuit requires no component matching co...

This paper describes the design of switched-current group delay equalizers. The design process is based on the pole-zero mirroring technique; with equalizer z-transfer functions generated using an optimization algorithm. To facilitate the systematic implementation of the equalizers, a model describing the design process is developed. A novel feature of the equalizers implementation is that wave...

ETRI Journal, Volume 26, Number 4, August 2004 In this paper we present a new current-mode electronically tunable universal filter using only plus-type current controlled conveyors (CCCII+s) and grounded capacitors. The proposed circuit can simultaneously realize lowpass, bandpass, and highpass filter functions— all at high impedance outputs. The realization of a notch response does not require...

This paper presents a novel analog circuit fault diagnosis approach using generalized multiple kernel learningsupport vector machine (GMKL-SVM) method and particle swarm optimization (PSO) algorithm. First, the wavelet coefficients’ energies of impulse responses are generated as features. Then, a diagnosis model is constructed by using GMKL-SVM method based on features. Meanwhile, the PSO algor...

A high-order current-mode and transimpedancemode universal filter with multiple-inputs and two-outputs based on multiple output second-generation current conveyors (MOCCIIs) is introduced. By choosing the input current terminals appropriately, the current-mode and transimpedance-mode lowpass, bandpass, highpass, notch or allpass filters can be obtained without component matching conditions. The...

In this paper, the design and measurement of a 1-V translinear integrator and its application in a controllable secondorder lowpass filter for hearing instruments is presented. A semicustom version of the filter has been integrated in a standard 2m, 7-GHz, bipolar IC process and operates at voltages down to 1 V, consumes only 6 A, and has a dynamic range of 57 dB for a total harmonic distortion...

In this paper we examine the orthogonal wavelet decomposition of ECG signal obtained using computationally efficient IIR perfect reconstruction quadrature-mirror filter (QMF) banks. The decomposition is done using the lowpass branch iterated filter banks. The fifth order Butterworth and elliptic filters are employed. IIR filters’ polyphase components are two real all-pass structures of the firs...

The paper briefly describes the basics of frequency filter design method using synthetic immittance elements with current conveyors. An introduction of the paper explains the advantages and also disadvantages of using this method. Other chapters briefly introduce a design process of simple second order lowpass and high-pass filter. A theory of current conveyors is discussed too, because they ar...

The design and implementation of a continuous-time lowpass filter with voltage-controlled cutoff frequency and passband ripple is presented. The circuit uses a linearised CMOS transconductor as a basic integrating building block. A voltage-controlled phase-adjusting scheme is employed in the integrator to compensate for excess phase in the transconductance at high frequencies. The fabricated fi...