Designing Flexible Software-Defined Radio Architectures

Modern high-performance radio/microwave communications systems utilize digital baseband signal processing (coupled with complex up/down conversion), where very little of the signal processing is performed in the analog/RF domain.
Even the most powerful signal processing engines and algorithms are incapable of processing sampled waveforms that have undergone most forms of non-linear distortion. Therefore, even modern digital communications systems still require high-order analog filters to control the non-idealities of the radio and data conversion processes.
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