Some physical limitations in the performance of statistical multiple-input multiple-output RADARs

• Published in: IET microwaves, antennas & propagation Vol. 2; no. 7; pp. 650 - 658
• Main Author: Migliore, M.D.
• Format: Journal Article
• Language: English
• Published: Stevenage Institution of Engineering and Technology 01.10.2008; The Institution of Engineering & Technology
• Subjects: Antennas; Applied sciences; Degrees of freedom; Exact sciences and technology; Mathematical analysis; Microwave antennas; Radar; Radiocommunications; Radiolocalization and radionavigation; Receiving; Telecommunications; Telecommunications and information theory; Transmission; Performance evaluation; MIMO system; Transmitting antenna; Radar; SIMO system; MISO system; Receiving antenna; Antenna array
• ISSN: 1751-8725; 1751-8733
• DOI: 10.1049/iet-map:20070197

The objective of the study is to clarify some physical limitations in the performance of statistical RADAR systems using multiple antennas. In particular, it is shown that the performance of the recently proposed statistical multiple-input multiple-output (MIMO) RADAR is limited by the Number of Degrees of Freedom (NDF) of the scattered field. Furthermore, the true nature of statistical RADAR systems (single-input multiple-output, multiple-input single-output, MIMO) is not related to the number of transmitting/receiving antennas, but to the NDF of the scattered field exploited by the system.