MIMO radar pseudo-orthogonal waveform generation by a passive 1 × M mode-mixing microwave cavity. Issue 7 (21st March 2017)

• Record Type: Journal Article
• Authors: Kpré, Ettien L.; Decroze, Cyril; Fromenteze, Thomas
• Editors: Skrivervik, Anja; Riva, Carlo; Foged, Lars
• Is Part Of: International journal of microwave and wireless technologies. Volume 9:Issue 7(2017)
• Page Start: 1357
• Page End: 1363
• Publication Date: 2017-03-21
• Subjects: Microwave measurements, -- Radar, -- Microwave component; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S175907871700023X
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract : Multiple Input Multiple Output (MIMO) Radar has many advantages compared with conventional Radars including improved target parameters estimation, improved angular resolution while keeping a small number of antennas. Nevertheless, these advantages can be obtained when probing simultaneously the scattering matrix with orthogonal transmit signals. Recently, a passive orthogonal waveform generation technique was introduced using a 1 × M ports Mode-Mixing microwave cavity whose transfer functions are uncorrelated. This approach makes MIMO Radar system able to satisfy transmit beamforming constraint with a cost-efficient architecture. In this paper, more conceptual clarifications are brought and the orthogonality metrics are assessed. Furthermore, the proposed method is experimentally compared with a conventional MIMO Radar based on frequency hopping waveforms.