Multi-Object Tracking with mmWave Radar: A Review

The boundaries of tracking and sensing solutions are continuously being pushed. A stimulation in this field over recent years is exploiting the properties millimeter wave (mmWave) radar to achieve simultaneous multiple objects. This paper aims provide a critical analysis current literature surrounding multi-object with short-range mmWave radar. There significant available regarding single-object using radar, demonstrating maturity systems. However, innovative research advancements also needed tracking, specifically respect uniquely identifying target tracks across an interrupted view. In article, we aim overview latest progress multi-target tracking. particular, attempt phrase problem space made by firstly defining typical architecture. We then highlight areas for potential advancements. These include sensor fusion, micro-Doppler feature analysis, specialized generalized activity recognition, gait, tagging shape profile. Potential reviewed compared adaptability, performance, accuracy specificity. Although majority has focus on human targets, most methodologies can be applied targets consisting different profiles characteristics that humans. Lastly, future directions discussed shed light opportunities approaches open areas.