One-Bit Target Detection in Collocated MIMO Radar and Performance Degradation Analysis
Abstract
Target detection is an important problem in multiple-input multiple-output (MIMO) radar. Many existing target detection algorithms were proposed without taking into consideration the quantization error caused by analog-to-digital converters (ADCs). This paper addresses the problem of target detection for MIMO radar with one-bit ADCs and derives a Rao's test-based detector. The proposed method has several appealing features: 1) it is a closed-form detector; 2) it allows us to handle sign measurements straightforwardly; 3) there are closed-form approximations of the detector's distributions, which allow us to theoretically evaluate its performance. Moreover, the closed-form distributions allow us to study the performance degradation due to the one-bit ADCs, yielding an approximate dB loss in the low-signal-to-noise-ratio (SNR) regime compared to -bit ADCs. Simulation results are included to showcase the advantage of the proposed detector and validate the accuracy of the theoretical results.
Cite
@article{arxiv.2012.10780,
title = {One-Bit Target Detection in Collocated MIMO Radar and Performance Degradation Analysis},
author = {Yu-Hang Xiao and David Ramírez and Peter J. Schreier and Cheng Qian and Lei Huang},
journal= {arXiv preprint arXiv:2012.10780},
year = {2021}
}