• Publications
  • Influence
Comparing Numerical Methods for Isothermal Magnetized Supersonic Turbulence
Many astrophysical applications involve magnetized turbulent flows with shock waves. Ab initio star formation simulations require a robust representation of supersonic turbulence in molecular cloudsExpand
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Increased expression of Candida albicans secretory proteinase, a putative virulence factor, in isolates from human immunodeficiency virus-positive patients.
The increased prevalence and the severity of oropharyngeal candidiasis in human immunodeficiency virus (HIV)-positive patients are attributed exclusively to the virus-induced immune deficiency of theExpand
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Modeling, Identification, and Compensation of Channel Mismatch Errors in Time-Interleaved Analog-to-
Modern signal processing applications emerging in telecommunication and instrumentation industries need high-speed analog-to-digital converters (ADCs), which can be achieved by employing aExpand
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Modeling of time-interleaved ADCs with nonlinear hybrid filter banks
Abstract In this paper, we model time-interleaved analog-to-digital converters (TIADCs) with nonlinear hybrid filter banks (NHFBs), which greatly unifies and simplifies the analysis of TIADCs. TheExpand
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LMS-based identification and compensation of timing mismatches in a two-channel time-interleaved analog-to-digital converter
A time-interleaved ADC (TIADC) increases the overall sampling rate by combining multiple slow ADCs. However, the performance of a TIADC suffers from several mismatches such as time, offset, and gainExpand
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A z-domain model and analysis of phase-domain all-digital phase-locked loops
In this paper a comprehensive z-domain model of all-digital phase-locked loops (ADPLLs) is derived. The model accounts for phase and frequency signals and thus reflects both, frequency and phaseExpand
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A Novel Channel Randomization Method for Time-Interleaved ADCs
We introduce a novel randomization method for time-interleaved analog-to-digital converters (TIADCs). In contrast to conventional randomization methods our method improves the signal-to-noise andExpand
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Compensation of distortions caused by periodic nonuniform holding signals
  • C. Vogel, C. Krall
  • Engineering
  • 6th International Symposium on Communication…
  • 25 July 2008
We investigate the compensation of distortions caused by periodic nonuniform holding signals in digital-to-analog converters (DACs). Such holding signals can introduce additional distortions, whichExpand
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A Frequency Domain Method for Blind Identification of Timing Mismatches in Time-Interleaved ADCs
  • C. Vogel
  • Computer Science
  • 1 November 2006
The performance of time-interleaved ADCs (TI-ADCs) mainly suffers from timing mismatches. We introduce an accurate blind timing mismatch identification for bandlimited, oversampled input signals,Expand
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Comprehensive, error analysis of combined channel mismatch effects in time-interleaved ADCs
  • C. Vogel
  • Computer Science
  • Proceedings of the 20th IEEE Instrumentation…
  • 20 May 2003
A)str.el - A rinte-interlroved analog-tdigital convener (ADC) achieves high sampling rates with fhe drawback of additional distortions caused by ehsnnelmismntches. In thispoper we consider fheExpand
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