Digital Compensation Techniques for Frequency-Translating Hybrid Analog-to-Digital Converters

作者：Mazlouman Shahrzad Jalali^*; Sheikhaei Samad; Mirabbasi Shahriar

来源：IEEE Transactions on Instrumentation and Measurement, 2011, 60(3): 758-767.

DOI：10.1109/TIM.2010.2045254

• Analog-to-digital conversion (ADC)
• calibration
• data conversion
• frequency-translating hybrid ADC (FTH-ADC)
• I/Q mismatch measurement and compensation
• wideband

The frequency-translating hybrid analog-to-digital converter (FTH-ADC) architecture is based on frequency interleaving and decomposing the wideband analog input signal into narrower-bandwidth analog baseband subbands, digitizing them, and performing further signal processing in the digital domain. In this paper, digital compensation techniques to enhance the performance of the FTH-ADC system in the presence of errors due to a variety of mismatches are presented. The effectiveness of these techniques to enhance the performance of the system is confirmed using a proof-of-concept two-channel prototype.

• 出版日期2011-3