This work concerns with the behavior and characterization of continuous-time signal processing structures involving time-variant delays. Both loop-less and looped structures are considered. Their cascades, invertibility and uniqueness of representation are studied along with their similarity transformations leading to the concept of Externally Time-Invariant Internally Time-Variant delay structures.
['Paul-Peter Sotiriadis', 'Robert Adams']
Continuous-time signal processing with time-variant delay