Subspace-based auto-paired range and DOA estimation of dual-channel FMCW radar without joint diagonalisation

• Published in: Electronics letters Vol. 50; no. 18; pp. 1320 - 1322
• Main Authors: Oh, D.G, Ju, Y.H, Lee, J.H
• Format: Journal Article
• Language: English
• Published: Stevenage The Institution of Engineering and Technology 28.08.2014; Institution of Engineering and Technology; John Wiley & Sons, Inc
• Subjects: Algorithms; anechoic chamber environment; Anechoic chambers; anechoic chambers (acoustic); anechoic chambers (electromagnetic); Applied sciences; Detection, estimation, filtering, equalization, prediction; direction‐of‐arrival; direction‐of‐arrival estimation; DOA estimation; dual channel FMCW radar; dual channel frequency modulated continuous wave radar; Exact sciences and technology; Information, signal and communications theory; joint diagonalisation; multitarget detection; Radar; radar signal processing; radar target recognition; Radar, sonar and navigation; Radiolocalization and radionavigation; shift invariant structure; Signal and communications theory; signal subspace; Signal, noise; stacked Hankel matrix; subspace based auto paired range; Subspaces; Telecommunications; Telecommunications and information theory; shift invariant structure; anechoic chambers (acoustic); anechoic chambers (electromagnetic); dual channel frequency modulated continuous wave radar; dual channel FMCW radar; direction-of-arrival estimation; multitarget detection; radar signal processing; DOA estimation; joint diagonalisation; subspace based auto paired range; signal subspace; radar target recognition; direction-of-arrival; anechoic chamber environment; stacked Hankel matrix; Hankel matrix; Continuous wave; Vector space; Arrival angle; Radar; Subspace method; Multiple target; Multiple channel; Anechoic room; Target detection; Shift invariance
• ISSN: 0013-5194; 1350-911X; 1350-911X
• DOI: 10.1049/el.2014.1278

A subspace-based auto-paired range and direction-of-arrival (DOA) estimation algorithm without joint diagonalisation for multi-target detection of dual-channel frequency modulated continuous-wave (FMCW) radar are proposed. The proposed method, which is based on signal subspace, exploits the shift invariant structure of the stacked Hankel matrix for the paired range and DOA estimation of multiple targets. To verify the effectiveness of the proposed method, the dual-channel FMCW radar is implemented and its effectiveness verified in an anechoic chamber environment.