Joint Range-Angle Super-resolution Estimation for Frequency Division MIMO Radar

A new joint range-angle super-resolution estimation algorithm is proposed for Frequency Division Multiple-Input Multiple-Output (FD-MIMO) radar that transmits a group of narrow-band Frequency-Modulated Continuous-Wave (FMCW) signals. Firstly, the Range-Doppler maps of all transmit-receive antenna pairs are obtained, considering the range and Doppler walk corrections. Then the peak values of the Range-Doppler maps for all transmit-receive antenna pairs are arranged together to estimate the range and angle of the target by utilizing 2-Dimensional spectral estimation methods. Simulation results further verify the theoretical derivations and reveal the high range and angle resolution performance of the proposed system and algorithm.