A Spectrum-Efficient FSK Radar Technology for Range Tracking of Both Moving and Stationary Human Subjects

被引:31
作者
Wang, Jing [1 ]
Karp, Tanja [1 ]
Munoz-Ferreras, Jose-Maria [2 ]
Gomez-Garcia, Roberto [2 ]
Li, Changzhi [1 ]
机构
[1] Texas Tech Univ, Dept Elect & Comp Engn, Lubbock, TX 79409 USA
[2] Univ Alcala, Dept Signal Theory & Commun, Polytech Sch, Alcala De Henares 28871, Spain
基金
美国国家科学基金会;
关键词
Frequency-shift keying (FSK) radar; range tracking; spectrum efficiency; stationary human; vital signs monitoring; wireless sensor; LOCALIZATION;
D O I
10.1109/TMTT.2019.2941189
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This article presents a spectrum-efficient frequency-shift keying (FSK) radar technology for Doppler frequency-based moving targets tracking and vital signs (i.e., respiration and heartbeat) based stationary human subject range detection. Fundamental theories of range tracking of linearly moving and periodically moving targets are explained. Different phase extraction methods are categorized and analyzed based on the applicable motion types. The advantage(s), disadvantage(s), and range tracking performance of these methods are compared and summarized. In addition, special conditions and limitations of the different phase extraction techniques are studied. Moreover, range tracking of multiple targets moving in opposite directions and moving in the same direction is investigated. Range detection of a stationary human subject with different orientations relative to the radar line of sight is evaluated. The detection robustness and consistency are explored by measuring a periodically moving small corner reflector at various locations relative to the radar.
引用
收藏
页码:5406 / 5416
页数:11
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