  We present an ultra-short range IEEE 802.11ad-based automotive joint
radar-communications (JRC) framework, wherein we improve the radar's Doppler
resilience by incorporating Prouhet-Thue-Morse sequences in the preamble. The
proposed processing reveals detailed micro-features of common automotive
objects verified through extended scattering center models of animated
pedestrian, bicycle, and car targets. Numerical experiments demonstrate $2.5$%
reduction in the probability-of-false-alarm at low signal-to-noise-ratios and
improvement in the peak-to-sidelobe level dynamic range up to Doppler
velocities of $\pm144$ km/hr over conventional 802.11ad JRC.
