Optimization and Performance Enhancement of Gesture Recognition Algorithm Based on FMCW Millimeter-Wave Radar

Gesture recognition plays an increasingly important role as the requirements of intelligent systems for human-computer interaction methods increase. To improve the accuracy of the millimeter-wave radar gesture detection algorithm with limited computational resources, this study improves the detection performance in terms of optimized features and interference filtering. The accuracy of the algorithm is improved by refining the combination of gesture features using a self-constructed dataset, and biometric filtering is introduced to reduce the interference of inanimate object motion. Finally, experiments demonstrate the effectiveness of the proposed algorithm in both mitigating interference from inanimate objects and accurately recognizing gestures. Results show a notable 93.29% average reduction in false detections achieved through the integration of biometric filtering into the algorithm’s interpretation of target movements. Additionally, the algorithm adeptly identifies the six gestures with an average accuracy of 96.84% on embedded systems.