Lens based 77 GHz TDM MIMO radar sensor for angular estimation in multitarget environments

Author

Lutz, Sharon ; Walter, T.

Author_Institution

Inst. of Med. Eng. & Mechatron., Univ. of Appl. Sci. Ulm, Ulm, Germany

fYear

2013

fDate

9-11 Oct. 2013

Firstpage

212

Lastpage

215

Abstract

The demanding tasks for automotive radar systems in multi target scenarios require an increased target separation performance and new sensor concepts. In this paper a highly integrated 77 GHz TDM MIMO radar is presented. The sensor is feasible for advanced DOA estimation in azimuth and elevation. For efficient and high quality measurements a fractional-n PLL with integrated waveform generator, enabling chirp and FMCW modulations, is implemented. Spatial beamforming is done with series feed array patch antennas in combination with a dielectric cylindrical lens. Due to the usage of switchable MIMO techniques the sensor performance can be significantly increased.

Keywords

CW radar; FM radar; MIMO radar; array signal processing; direction-of-arrival estimation; microstrip antenna arrays; millimetre wave antenna arrays; road vehicle radar; time division multiplexing; FMCW modulations; advanced DOA estimation; angular estimation; automotive radar systems; chirp modulations; dielectric cylindrical lens; fractional-n PLL; integrated waveform generator; lens based TDM MIMO radar sensor; multitarget environments; series feed array patch antennas; spatial beamforming; switchable MIMO techniques; Arrays; Azimuth; Estimation; Lenses; MIMO; Radar; Radar antennas; DOA estimation; MIMO radar; SiGe; dielectric lens; optical beamforming; super resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (EuRAD), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6689151