Key result
Two parameter selection approaches improve modulo ADC system error tolerance via precise search-based optimization.
Why the study?
Modulo ADCs extend the dynamic range of conventional ADCs, but methods for parameter selection in conjugate complex-valued 2-channel modulo ADC systems are needed to improve error tolerance.
The proposed parameter selection methods improve error tolerance and optimize performance in complex-valued 2-channel modulo ADC systems.
Modulo Analog-to-digital converters (ADCs) extend the dynamic range of conventional ADCs by folding input signals, enabling the acquisition of signals beyond traditional limits. This paper presents two approaches for parameter selection in conjugate complex-valued 2-channel modulo ADC systems to improve error tolerance. The first is a closed-form suboptimal method, which offers a near-optimal solution, making it suitable for efficiency-sensitive applications. The second is an effective search-based method that identifies the exact optimal solution with relatively low computational cost. Simulations show that the sub-optimal method provides performance close to the optimal solution, while the search-based method achieves precise optimisation with manageable computational requirements.
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Yan et al. (2025) studied this question. Parameter selection approaches (closed-form suboptimal and search-based methods) was evaluated on Error tolerance and computational cost. Two parameter selection approaches for conjugate complex-valued 2-channel modulo ADC systems improved error tolerance, with the search-based method achieving precise optimization.
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