In this paper, we propose a solution to improve the range profile quality of digitally modulated radars. Such radars are able to offer high resolution combined with high sensitivity due to their ability to produce range profiles with low or zero sidelobes. Unfortunately, it has been shown that radar front-end nonlinearities and Doppler shifts degrade the range profile by increasing the range sidelobes and/or producing ghosts.To significantly improve the range profile quality, we propose a system level solution based on a proper selection and use of the code sequences, thus relying on sequence families with a large set. We demonstrate by simulation the effectiveness of our method, both for PMCW and OFDM Continuous Wave radars.
