Doppler Velocity Decomposed Radar Imaging Method for 79 GHz Band Millimeter Wave Radar

Millimeter wave (MMW) radar is promising for target identification in short range sensing scenario. In particular, 79 GHz band multiple-output-multiple-input (MIMO) MMW radar has numerous advantages, in terms of high spatial resolution and compact module. However, its spatial resolution is still insufficient to accurately reconstruct complicated shape object, such as human body, it suffers from insufficient spatial resolution. This paper introduces the Doppler velocity decomposed radar imaging method, focusing on moving objects with different velocity, such as walking human. The experimental test, using 79 GHz band MMW radar, demonstrate that our proposed method retains a sufficient spatial resolution in multiple moving objects.