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A fundamental condition of using Discrete Fourier is that the signal being transformed needs to be periodic and transform is performed on an integer number of these periods. In practice, due to some physical limitations, this condition is not always satisfied. A phenomenon known as leakage will occur and cause serous distortion in the transformed signal. Window functions are generally used at the...
There is a need throughout the world for uniform test methods for devices used to generate, measure, and analyze waveforms. Technical Committee 10 (TC-10), the Waveform Generation, Measurement, and Analysis Committee of the Instrumentation and Measurement (I&M) Society, is tasked to develop standards to address these needs. To date, standards have been developed for digitizing waveform recorders,...
In the paper the analytic comparison of dynamic parameters used for qualifying ADCs in the frequency domain reported in the most diffused standards is provided. This could be the first step towards their harmonization.
Volterra theory can be used to mathematically model nonlinear dynamic components such as analog-to-digital converter (ADC). This paper describes how frequency domain Volterra kernels of an ADC are determined from measurements. The elements of Volterra theory are given and practical issues are considered, such as methods for signal conditioning, finding the appropriate test signals scenario and suitable...
In this paper we study the effect that additive noise and quantization noise have on the precision of estimates of amplitude, offset and phase at the origin of time of a sine wave fitted to a set of data acquired by a waveform digitizer.
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