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high-order /spl Delta/-/spl Sigma/ modulators

2nd Order Sigma Delta Modulator Using Reversible Fredkin and Toffoli Gates

2nd Order Sigma Delta Modulator Using Reversible Fredkin and Toffoli Gates

... The comparator is suitable for many high speed and low power applications. Its operation clocks as it is a sequential circuit. When there is reset mode the nodes A and B are pulled up to VDD, and when clock goes ...

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State scaling of continuous-time sigma-delta modulators

State scaling of continuous-time sigma-delta modulators

... in order to increase the maximum SNR and maximum stable input ...3rd order 61-Modulator in chain of integrators with dis- tributed feedback topology (CIFB) with an oversampling ra- tio of OSR = 128 and a ...

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Force feedback linearization for higher order electromechanical sigma delta modulators

Force feedback linearization for higher order electromechanical sigma delta modulators

... resulting nonlinear effect is not considered. This is not a valid assumption for high performance sensors [7–9]. This paper analyses the nonlinearities arising from the conversions between the mechanical and ...

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New Current-mode Universal Filter by a Novel Low Voltage Second Generation Current Conveyor

New Current-mode Universal Filter by a Novel Low Voltage Second Generation Current Conveyor

... and sigma-delta modulators because of the high frequency performance for current and voltage transfer ...pass, high pass and band pass which can adjust the cut-off frequencies and ...

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Stability Analysis of Higher Order Delta Sigma Modulators for Dual Sinusoidal Inputs

Stability Analysis of Higher Order Delta Sigma Modulators for Dual Sinusoidal Inputs

... ∆-Σ modulators is complicated to predict due to the non-linearity introduced by the quantizer in the feedback ...∆-Σ modulators based on the noise amplification curve is given in ...∆-Σ modulators ...

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Stability analysis of higher order delta sigma modulators using the describing function method

Stability analysis of higher order delta sigma modulators using the describing function method

... ∆-Σ modulators is complicated to predict due to the non-linearity introduced by the quantizer in the feedback ...∆-Σ modulators based on the noise amplification curve is given in ...∆-Σ modulators is ...

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An Improved Architecture for Multiple-Order Single-Bit Quantizer Based Over-Sampled Delta-Sigma Modulators

An Improved Architecture for Multiple-Order Single-Bit Quantizer Based Over-Sampled Delta-Sigma Modulators

... Over-Sampled Delta-Sigma Modulator (DSM) is ...multiple- order noise-shaping ...of order and provides approximately the same NTF function and slightly better SNR value than that of regular ...

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On the synthesis and optimization of cascaded continuous-time Sigma-Delta modulators

On the synthesis and optimization of cascaded continuous-time Sigma-Delta modulators

... ideal high-pass filter whose order is equal to the overall modulator order, ...stage modulators in the cascade, while maintaining a DC gain of one for the signal transfer ...

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Nonlinear Stability Prediction of Multibit Delta Sigma Modulators for Sinusoidal Inputs

Nonlinear Stability Prediction of Multibit Delta Sigma Modulators for Sinusoidal Inputs

... for Delta-Sigma (Δ-Σ) modulators are complicated to predict due to the non-linearity of the ...the order of the Δ-Σ modulator ...Δ-Σ modulators and is limited to 1 st - and 2 nd - ...

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Tonality index of sigma delta modulators: a psychoacoustics model based approach

Tonality index of sigma delta modulators: a psychoacoustics model based approach

... frequency of 21 kHz and decimated by a factor of 64. The filter was realized as a Tapped delay line having the order 348. The input signal was additively contaminated with Additive White Gaussian Noise (AWGN) with ...

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Time-Mode Signal Quantization for Use in Sigma-Delta Modulators

Time-Mode Signal Quantization for Use in Sigma-Delta Modulators

... In [10], a VCO-based multi-bit quantizer is employed inside a continuous-time ΔΣ loop. This design partially solves the nonlinearity error of the VCO while generating implicit dynamic element matching of the feedback ...

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Sigma Delta Modulators: A Review

Sigma Delta Modulators: A Review

... Sigma Delta modulators (DSMs) are a class of oversampling analog-to-digital converters (ADCs) that perform “quantization noise shaping,” thus achieving a high signal-to-noise ratio ...field. ...

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Kinematic control of male Allen's hummingbird wing trill over a range of flight speeds

Kinematic control of male Allen's hummingbird wing trill over a range of flight speeds

... We then calibrated for the effects of the wind tunnel. When the tunnel is running, it potentially affects acoustic recordings in four ways: (1) background sound produced by the fan, motor and airflow varies with speed; ...

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Equal latency contours and auditory weighting functions for the harbour porpoise (Phocoena phocoena)

Equal latency contours and auditory weighting functions for the harbour porpoise (Phocoena phocoena)

... The high power LL 1424HP did not fit in the protective box, so this projector was hung in front of the box by ropes attached to its stainless steel cage, at ...m high, ...

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Malignant Lymphoma in the Parasellar Region

Malignant Lymphoma in the Parasellar Region

... Copyright © 2014 Takao Koiso et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...

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Conversion of Object Oriented System into Software Product Line with Delta Modeling Abstract Behavioral Specification

Conversion of Object Oriented System into Software Product Line with Delta Modeling Abstract Behavioral Specification

... into SPL using delta modeling of ABS. This approach can be done in four steps, which are creating the dummy objects, override the dummy object, process and generate, and run the Java code from the previous ...

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Profiling structured product labeling with NDF-RT and RxNorm

Profiling structured product labeling with NDF-RT and RxNorm

... A drug and drug class network was built based on the SPL mappings with different data resources: EPC classes, NDF-RT and RxNorm. From such network, it can allow us to explore more drug class information for ...

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Reduced sphingosine kinase-1 and enhanced sphingosine 1-phosphate lyase expression demonstrate deregulated sphingosine 1-phosphate signaling in Alzheimer’s disease

Reduced sphingosine kinase-1 and enhanced sphingosine 1-phosphate lyase expression demonstrate deregulated sphingosine 1-phosphate signaling in Alzheimer’s disease

... Most of the subjects were staged Braak V-VI and Thal 4 to 5, therefore the packing density of neurofibrillary tan- gles and senile plaques was high (Table 1). Cortical thickness variability was noticed and could ...

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SPL6 , SPL 12 and SPL 13) contain miR156 cleavage sites and their

SPL6 , SPL 12 and SPL 13) contain miR156 cleavage sites and their

... MiR156 regulates plant biomass production through regulation of members of SQUAMOSA-PROMOTER BINDING PROTEIN-LIKE (SPL) genes. In this study, I investigated function of miR156 in Medicago sativa (alfalfa). Alfalfa ...

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Estimation and Reduction of Noise in Gears

Estimation and Reduction of Noise in Gears

... The paper presents the literature for noise in gears. It includes the methods of calculation of gear noise, mathematical modeling for gear noise prediction. Also experimental methods to measure noise parameters. It is ...

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