Switched capacitor (SC) based modulator is prone to various non-idealities; especially at the circuit designing stage where the integrator plays an important role and effects the overall performance of the sigma delta modulator. The non idealities take account of sampling jitter which includes the effect of switching circuitry, sampling noise. Opamp parameter include noise, finite dc gain, fini...

This paper presents the first implementation results for a time-interleaved continuous-time modulator. The derivation of the time-interleaved continuous-time modulator from a discrete-time modulator is presented. With various simplifications, the resulting modulator has only a single path of integrators, making it robust to DC offsets. A time-interleaved by 2 continuous-time third-order low-pas...

A universally accepted figure of merit for analog microwave transmission links is the spur-free dynamic range (SFDR), which is the ratio (usually expressed in dB) of the largest to smallest signal a link can transmit and receive without introducing any measurable distortion. This paper presents the result of a study of broadband, microwave fiber optic links that contain high-linearity integrate...

We propose an experimental setup for studying the Anderson localization of light in continuous transverse spatial degrees freedom photons. This physical phenomenon can be observed profile a paraxial and quasi-monochromatic beam using modulator. The modulator acts laser as weak random potential. Here, differently from standard models studied literature, our splits dispersion potential terms alon...

This paper deals with a system-level optimization of a back-end of audio signal processing chain for hearing-aids, including a sigma-delta modulator digital-to-analog converter (DAC) and a Class D power amplifier. Compared to other stateof-the-art designs dealing with sigma-delta modulator design for audio applications we take the maximum gain of the modulator noise transfer function (NTF) as a...

The theoretical basis for analyzing the effects of an allosteric modulator on the response to an agonist is described. The effects of an allosteric modulator on the concentration-response curve to an agonist can be attributed to changes in the observed dissociation constant and intrinsic efficacy of the agonist-receptor complex. Each of these two changes can be represented by a coefficient or f...

We demonstrate an aerial projection system for reconstructing 3D motion pictures based on holography. The system consists of an optical source, a spatial light modulator corresponding to a display and two parabolic mirrors. The spatial light modulator displays holograms calculated by computer and can reconstruct holographic motion pictures near the surface of the modulator. The two parabolic mi...

A two-channel time-interleaved second-order sigma-delta modulator for broadband applications including asymmetrical digital subscriber line (ADSL) is presented. The proposed two-channel modulator uses a single integrator channel which does not require additional active elements for the quantizer input generation, since the integrator outputs are directly used as the input of the quantizers. As ...

Different architectures have been proposed for FPGA implementation of Universal Modulator. The Look up table (LUT) technique is one way of realizing universal modulator. Here the CORDIC is used for efficient realization of Universal Modulator. The coordinate rotation digital computer (CORDIC) algorithm is widely used in various technological fields such as digital signal processing (DSP), biome...

This study introduces a reversible optical fulladder. Also optical NOT and NOR gates are implemented through Electro-Absorption-Modulator / Photo Detector (EAM/PD) pairs, were utilized for fulfilling reversible R gate. Then, reversible fulladder was designed based on the proposed reversible optical R gate. The operation of the suggested fulladder was simulated using Optispice and it was fou...