A digital bandwidth interleaved structure correction method based on itemized correction

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.