Title :
On fast chirp modulations and compressed sensing for automotive radar applications
Author :
Lutz, Sharon ; Ellenrieder, Daniel ; Walter, T. ; Weigel, Robert
Author_Institution :
Lab. of Microtechnol., Univ. of Appl. Sci. Ulm, Ulm, Germany
Abstract :
In the last decade radar based driver assistance systems have increased the safety in all vehicle classes and get the access to mass market applications. Currently slow FMCW waveforms are the state of the art principle for automotive radar sensors at 24 GHz and 77 GHz. This contribution presents an innovative 77 GHz multi channel radar sensor, with the capability for fast FMCW PLL locked chirp modulations down to 10 μs. It gives a brief review on short FMCW chirp modulations and its processing. Furthermore the application of compressed sensing algorithms for r/v estimation is discussed and system simulations and measurements are presented.
Keywords :
CW radar; FM radar; chirp modulation; compressed sensing; millimetre wave radar; road vehicle radar; automotive radar applications; automotive radar sensors; compressed sensing; fast FMCW PLL locked chirp modulations; frequency 24 GHz; frequency 77 GHz; multi channel radar sensor; radar based driver assistance systems; short FMCW chirp modulations; slow FMCW waveforms; Chirp; Chirp modulation; Compressed sensing; Equations; Estimation; Mathematical model; Radar; 77GHz; automotive; chirp modulations; compressed sensing; dielectric lens; radar;
Conference_Titel :
Radar Symposium (IRS), 2014 15th International
Conference_Location :
Gdansk
Print_ISBN :
978-617-607-552-3
DOI :
10.1109/IRS.2014.6869182
