Title :
Three-dimensional radar imaging by digital beamforming
Author :
Harter, Marlene ; Ziroff, Andreas ; Zwick, Thomas
Author_Institution :
Inst. fur Hochfrequenztech. unci Elektron. (IHE), Karlsruher Inst. fur Technol. (KIT), Karlsruhe, Germany
Abstract :
In this paper a three-dimensional radar imaging method is presented which combines the FMCW approach for range measurement with digital beamforming in two dimensions. By an orthogonal arrangement of the transmit and receive antenna arrays, the angular information in azimuth and elevation can be evaluated. Hence, the position of an object in three- dimensional space can be determined. The results in terms of two-dimensional beamforming and three-dimensional imaging capabilities are verified by simulation as well as by measurements using a 24 GHz digital beamforming radar sensor with eight receiver and eight transmitter channels.
Keywords :
CW radar; FM radar; antenna arrays; array signal processing; radar imaging; FMCW approach; angular information; azimuth; digital beamforming radar sensor; elevation; frequency 24 GHz; orthogonal arrangement; receive antenna arrays; receiver channels; three-dimensional radar imaging method; three-dimensional space; transmit antenna arrays; transmitter channels; two-dimensional beamforming; Array signal processing; Imaging; Radar imaging; Receivers; Three dimensional displays; Transmitters;
Conference_Titel :
Radar Conference (EuRAD), 2011 European
Conference_Location :
Manchester
Print_ISBN :
978-1-4577-1156-5
