Open AccessCRBs for direction‐of‐departure and direction‐of‐arrival estimation in collocated MIMO radar in the presence of unknown spatially coloured noise
Author(s) -
Wen Fangqing,
Zhang Xinyu,
Zhang Zijing
Publication year - 2019
Publication title -
iet radar, sonar and navigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.489
H-Index - 82
eISSN - 1751-8792
pISSN - 1751-8784
DOI - 10.1049/iet-rsn.2018.5386
Subject(s) - direction of arrival , mimo , radar , noise (video) , cramér–rao bound , computer science , algorithm , white noise , bistatic radar , estimation theory , telecommunications , radar imaging , artificial intelligence , beamforming , antenna (radio) , image (mathematics)
This study gives explicit closed‐form expressions of the stochastic Cramer–Rao bounds (STO‐CRBs) on direction‐of‐departure and direction‐of‐arrival estimation accuracies for collocated multiple‐input–multiple‐output (MIMO) radar with unknown spatially coloured noise. In some special cases, i.e. the CRB of direction estimation accuracy for monostatic MIMO radar, the white noise scenario is discussed. Theoretical comparisons between the STO‐CRBs and the deterministic ones are presented. Finally, these bounds are numerically compared.