@inproceedings{146810bd39a34b749839910294a3529d,
title = "Doppler ambiguity resolving in TDMA automotive MIMO radar via digital multiple PRF",
abstract = "Multiple input multiple output (MIMO) radars require orthogonality between the transmitted signals, which can be achieved via time division multiple access (TDMA) scheme, where only a single transmitter operates at a predefined time slot. This scheme determines the pulse repetition frequency (PRF) per transmitter, which in turn limits the maximal unambiguous Doppler. When radars are designed to operate in an ambiguous Doppler regime, Doppler ambiguity is conventionally resolved via waveform diversity (e.g. multiple PRFs), which is practically challenging. This work proposes a method to resolve Doppler ambiguity by generating an additional PRF digitally, without waveform diversity. In the case where the transmitters are positioned linearly, the proposed method performs better for targets that lie in a limited field of view, compared to the array. The proposed method performance is evaluated via simulations, compared to the traditional processing method and tested using measurements, collected with an automotive radar in real-life scenarios.",
keywords = "Ambiguity Side-Lobes, Automotive Radar, CW-LFM, DMPRF, Doppler Ambiguity, MIMO Radar, MPRF, PRF, PRI",
author = "I. Shapir and I. Bilik and G. Barkan",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE Radar Conference, RadarConf 2018 ; Conference date: 23-04-2018 Through 27-04-2018",
year = "2018",
month = jun,
day = "8",
doi = "https://doi.org/10.1109/RADAR.2018.8378552",
language = "American English",
series = "2018 IEEE Radar Conference, RadarConf 2018",
pages = "175--180",
booktitle = "2018 IEEE Radar Conference, RadarConf 2018",
}