An Optimized Interleaved OFDM Chirp Orthogonal Waveform Design for Dechirped Miniature MMW MIMO Radar
Biao Xue, Gong Zhang, Fulvio Gini, Maria S. Greco, Henry Leung
Abstract
Due to the characteristics of light weight, low cost, and high resolution, millimeter wave (MMW) multiple-input multiple-output (MIMO) radars are widely applied in remote sensing and automotive systems. The MMW MIMO radar orthogonal waveform design is a key issue based on dechirp-on-receive technique to acquire high degree of freedom (DOF). In this paper, we propose an optimized interleaved orthogonal frequency division multiplexing (I-OFDM) chirp waveform design scheme using unequal sub-chirp duration and sparse sub-band constraint to further reduce the mutual interference (MI) between waveforms, and analyze the orthogonality of the original and optimized I-OFDM chirp waveform for MMW MIMO radar based on dechirp processing from various aspects. The simulation results show the effectiveness of the proposed method.
BibTeX
@inproceedings{icassp2024_anoptimizedinter,
title = {An Optimized Interleaved OFDM Chirp Orthogonal Waveform Design for Dechirped Miniature MMW MIMO Radar},
author = {Biao Xue and Gong Zhang and Fulvio Gini and Maria S. Greco and Henry Leung},
booktitle = {ICASSP 2024},
year = {2024}
}