Analog Integrated Circuits and Signal Processing

Presently in medical science, diagnostic process demands longer electrocardiogram (ECG) signal recordings, which have traditionally been processed on high-speed multicore personal computers. However, for local ECG signal collection and processing, a ...

Most recent technological proposals, such as cyber---physical systems or wireless sensor networks, consist of a collection of tiny nodes designed to be seamless integrated into daily living objects. These nodes then, due to their miniaturized ...

This paper addresses the problem of speech quality enhancement by adaptive two-channel filtering algorithms. Recently, the forward blind source separation structure has been proposed and combined with normalized least-mean-square algorithm (FNLMS). The ...

In this research a new way introduced for solving the underdetermined blind speech signal separation problem when the number of observation is less than the sources for which the ICA is no longer applicable, which enhance the time complexity for ...

In spite of development in digital storage and communication technology, the demand for data compression is ever increasing. The ECG data requires about 40---50 MB per channel space for 24-h recording. Limitations of storage size, higher bandwidth and ...

The penetration of gamma in neutron spectra reduces the accuracy of measurement results, especially when using the scintillation detector. The digital method can be used to identify either neutron or gamma pulses. In order to select the algorithm for ...

In this article a simple chaotic flow with hidden attractor is proposed. Various dynamics of this new system such as periodic and chaotic oscillations can be achieved by setting bifurcation parameters in a proper value. Nowadays chaos based engineering ...

A novel square root circuit using floating gate MOS (FGMOS) transistors operating in the saturation region is presented. FGMOS transistors are being utilized in a number of new and exciting analog applications. These devices are available in standard ...

This paper presents a study and implementation of a shunt---shunt resistive voltage divider digital-to-analog converter (DAC) for use as a multibit DAC in a multi-stage noise shaping sigma-delta modulator DAC design with dynamic element matching. This ...

In this paper, a signal-specific analog-to-digital converter (ADC) with a new structure is proposed, in which the resolution of the ADC is adaptively adjusted by the activity of the input neural signal. The main advantages of the proposed technique for ...

In most of digital systems, which require to have high level of resolution, time for digital converter is among the most significant blocks. Time difference amplifier (TDA) is utilized in time to digital converter in order to increase the level of ...

This paper presents the implementation of symmetric folded meandered-line structure that includes a quad-section stepped impedance resonator (QSIR). The existence of four stop bands at 1.81/5.16/8.08/10.90 GHz was successfully synthesized by the ...

This paper presents a 28 nm-bulk-CMOS 3rd-order 132 MHz low-pass filter based on an improved Active-gm-RC stage. Challenges related to the design of analog circuits in 28 nm-bulk-CMOS process node are faced, mitigated and exploited by operating at both ...

Digital filters are the important processing elements in most of the digital signal processing system designs, ranging from medical signal processing to wireless communication. Low power and area efficient Finite Impulse Response filter is designed with ...

A miniaturized inter-digitated hairpin resonating BPF structure with centre frequency of 1.3 GHz suitable for GPS was designed with FR4 substrate. Ratioed CSRR DGS structures act as slow wave resonators extending the stop band of the filter. To maximise ...

In this paper, a novel wideband bandpass filter using half-mode substrate integrated waveguide (HMSIW) structure loaded by complementary Z-shaped resonator (CZR) is proposed. The working principle of the proposed filter is based on the evanescent-mode ...

This paper presents a 24---28 GHz high-stability millimeter-wave power amplifier (PA) implemented in low-cost $$0.13\, \upmu \hbox {m}$$0.13μm CMOS process. The PA consists of two cascode stages with passive transformer-based input and output baluns. ...

A third-order quadrature sinusoidal oscillator (TOQSO) is proposed employing two voltage differencing inverting buffered amplifiers (VDIBAs), three grounded capacitors and a resistor. The proposed TOQSO enjoys electronically tunable, non-interactive ...

A voltage-controlled current source in 0.35 μm BiCMOS technology is presented. A linear relationship between the control voltage and the output current is achieved by using first generation current conveyors in configuration of simple voltage-to-current ...

Due to the increasing short channel effects in scaled CMOS circuits, the need for alternative technologies has substantially been increased. Moreover, the limitation in space consumed by interconnects and increased power density in nanoscale binary ...