The integral nonlinearity (INL) of analog-to-digital converters (ADCs) can be described by a behavioral error model expressed as one-dimensional image in the code domain. This consists low and high frequency components which allow describing ADC performance with small number parameters. paper presents new methods for testing. identification is performed multiharmonic sine fitting time are estimated statistical domain narrow band histogram test using triangular stimulus signal. proposed...

A prerequisite for continuous transport systems’ operation is their digital transformation, which interprets operating conditions based on the availability of a wide range data and information in form measured quantities that can be obtained, example, by experimental measurement. To implement transformation systems, it necessary to examine analyze informative value individual detail. Research this area must focus identifying addressable with clear, value. Such an approach enables monitoring...

Testing of ADC differential nonlinearity by the histogram method requires a signal generator with extremely low distortion and high stability. In this paper, new type stimulus is proposed, which simplifies task. The testing has an exponential form can be generated simply discharging capacitor across resistance. resulting digital samples from output tested allow estimation best fitted proper three-parameter method. histograms data record approximation calculation nonlinearity.

Modeling the integral nonlinearity by unified behavioral error model which is expressed as one dimensional image in code k domain requires a minimal number of parameters. The consists low and high frequency components. paper presents new methods for testing. identification components based on stochastic analysis both using harmonic signals with reduced amplitude. component bins extraordinary nonlinearities estimated statistical narrow band histogram sinusoidal stimulus. uncertainty proposed...

Dynamic nonlinear effects contribute significantly to analog-to-digital converters (ADCs) distortion. Volterra filtering can present an effective method for modeling and compensation of these phenomena. Considering a priori error model ADC allows us find efficient inverse correction. The method's effectiveness is demonstrated by experimental measurements.

Abstract Error models of the Analog to Digital Converters describe metrological properties signal conversion from analog digital domain in a concise form using few dominant error parameters. Knowledge allows end user provide fast testing crucial points full input range and use identified for post correction domain. The imperfections internal ADC structure determine characteristics represented by nonlinearities as function output code. Progress microelectronics missing information about...

Abstract This paper presents a way of acquiring sparse signal by taking only limited number samples; sampling and compression are performed in one step the analog to information conversion. The is recovered with minimal loss from reduced data record via compressed sensing reconstruction. Several methods conversion described focus on numerical complexity implementation existing embedded devices. Two novel proposed, distinctive their computational simplicity - direct subsampling integration....

The article presents the analysis, design, and low-cost implementation of application-specific AD converters for M-sequence-based UWB applications to minimize integrate whole sensor system. Therefore, main goal this is converter’s own design with analog part into system-in-package (SiP) or directly system-on-a-chip (SoC), which cannot be implemented commercial converters, would disproportionately expensive. Based on current used system requirements, achieve maximum possible bandwidth in...

In the ADC test is convenient to use as stimulus real exponential voltage than sinusoidal one. Indeed, much more similarity theoretical one signal. For estimation of final uncertainty in test, knowledge distortion needs. The caused by signals superimposed waited With this aim, paper pointed out (i) stand for accurate acquisition generated capacitor discharge, and (ii) numerical procedure evaluate parameters assigned number nP functions that best fit acquired samples. Results tests assess...

In this paper, a Compressive Sampling (CS) based measurement method of the Bio-Impedance (Bio-Z) variation at wrist, due to blood flow inside radial artery, is presented, allowing estimate pulse wave. The uses as stimulus known pulse-like waveform (e.g., pseudo-random sequence) and it compressively samples resulting signal with goal obtaining impulse response wrist Bio-Z. mathematical steps describing method, 3D electrical model used for simulations well experimental investigations are...

The integral nonlinearity (INL) of analog to digital converters (ADCs) can be described by a behavioral error model expressed as one dimensional image in the code domain. This consists low and high frequency components which allow describing ADC performance with small number parameters. paper presents new methods for testing. identification is performed multi-harmonic sine fitting time are estimated statistical domain narrow band histogram test using triangular stimulus signal. proposed...