Title :
A modular 24 GHz radar sensor for digital beamforming on transmit and receive
Author :
Harter, Marlene ; Kornbichler, Andreas ; Zwick, Thomas
Author_Institution :
Inst. fur Hochfrequenztech. und Elektron. (IHE), Karlsruher Inst. fur Technol. (KIT), Karlsruhe, Germany
fDate :
Sept. 30 2010-Oct. 1 2010
Abstract :
A compact modular 24 GHz imaging radar sensor for digital beamforming is presented. Besides digital beamforming on receive, the advantage of multiple switched transmitters is used for increasing the angular resolution, which requires less hardware effort. The presented FMCW radar sensor provides up to eight switchable transmitters and eight receiver channels for parallel receiving, allowing digital beamforming on transmit and receive. A new switching technique via switchable amplifiers is proposed. Within the scope of this paper an overview of the whole radar sensor´s architecture, design and realization is given. The performance of the sensor is successfully demonstrated and evaluated by measurements.
Keywords :
CW radar; FM radar; array signal processing; radar imaging; radar receivers; radar resolution; radar transmitters; FMCW radar sensor; angular resolution; digital beamforming; frequency 24 GHz; modular imaging radar sensor; multiple switched transmitters; receiver channels; switchable amplifiers; switchable transmitters; switching technique; Antenna measurements; Array signal processing; Arrays; Radar; Receivers; Switches; Transmitters;
Conference_Titel :
Radar Conference (EuRAD), 2010 European
Conference_Location :
Paris
Print_ISBN :
978-1-4244-7234-5
