IntroductionDynamic gesture recognition using impulse radio ultra-wideband (IR-UWB) radar has attracted increasing interest for privacy-preserving and illumination-robust human-computer interaction. However, single-view radar perception is susceptible to occlusion and viewpoint-dependent information loss, while existing methods often struggle to jointly model fine-grained local motion patterns and long-range temporal dependencies in time-range (TR) representations.MethodsTo address these issues,