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This study introduces a simplified correction method for digital bandwidth-interleaved analog-to-digital converters (DBI-ADCs). The new approach enhances wideband acquisition performance and simplifies design, testing, and implementation for practical engineering applications.

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Area of Science:

  • Electrical Engineering
  • Signal Processing
  • Analog-to-Digital Conversion

Background:

  • Digital bandwidth-interleaved analog-to-digital converters (DBI-ADCs) are crucial for high-speed data acquisition systems.
  • Existing correction methods for DBI-ADCs are insufficient in design, testing, and implementation.
  • Wideband acquisition performance evaluation and correction in DBI-ADCs remain challenging.

Purpose of the Study:

  • To propose a novel, itemized correction method for DBI-ADC structures.
  • To simplify the complex filter bank design algorithm.
  • To improve the overall design, testing, and implementation of DBI-ADC systems.

Main Methods:

  • Decomposition of complex correction filter banks into multiple simpler filters.
  • Separation and individual correction of various DBI-ADC system errors.
  • Validation through simulation and experimental results.

Main Results:

  • Significant simplification of the design, testing, and implementation process for DBI-ADCs.
  • Effective correction of DBI-ADC errors, enhancing wideband acquisition performance.
  • Demonstrated balance between correction efficacy and practical implementation feasibility.

Conclusions:

  • The proposed itemized correction method offers a highly convenient solution for practical engineering.
  • The method effectively addresses the limitations of existing DBI-ADC correction techniques.
  • Simulation and experimental results confirm the method's effectiveness and practicality.