This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
New Algorithm for Multiple Object Detection in FM-CW Radar
Technical Paper
2004-01-0177
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A new practical algorithm is proposed for multiple object detection in automotive FM-CW radars. They are radars for ACC (Adaptive Cruise Control) radar, collision avoidance, pre-crash safety, side-object detection, etc. This algorithm can provide the distance and relative velocity of objects without the ambiguity of distance and relative velocity, an inherent problem of FM-CW. Since it is simple, straight-forward and fast, it is suitable for automotive application, in which the update time is less than 100 [msec]. This algorithm is based on two down chirp frequency sweeps with small slope-difference. Since the difference is small, the correct pairs of beat frequencies are obtained automatically. Because of the down chirps, the polarity of beat frequencies owing to the distance and the doppler becomes the same for an approaching object and then the distance and the velocity are uniquely determined. Namely the distance and velocity information for multiple objects can be calculated without the ambiguity in a simple manner.
Recommended Content
Authors
Citation
Miyahara, S., "New Algorithm for Multiple Object Detection in FM-CW Radar," SAE Technical Paper 2004-01-0177, 2004, https://doi.org/10.4271/2004-01-0177.Also In
Intelligent Vehicle Initiative (Ivi) Technology - Advanced Controls and Vehicle Navigation Systems
Number: SP-1854; Published: 2004-03-08
Number: SP-1854; Published: 2004-03-08
References
- Skolnik M. I. Introduction to Radar Systems McGraw-Hill 2nd 1980
- Ulke W. Adomat R. Butscher K. Lauer W. “Radar Based Automotive Obstacle Detection System” SAE 1994 World Congress, 940904 1994
- Prestl W. Sauer T. Steinle J. Tsschernoster O. “The BMW Active Cruise Control ACC” SAE 2000 World Congress, 2000-01-0344 2000
- Riley B. Schwartz B. Shipp K. Zumberge J. T. Kuo G. “Development of a Controlled Braking Strategy for Vehicle Adaptive Cruise Control” SAE 2000 World Congress, 2000-01-0109 2000
- Mitsumoto M. Uehara N. Inatsune S. Kirimoto T. “Target Distance and Velocity Measurement Algorithm to Reduce False Targets in FMCW Automotive Radar” IEICE Trans. Communication E83-B 9 1983 1989 Sept. 2000
- Mitsumoto M. Kirimoto T. Uehara N. Inatsune S. “FMCW Automotive Radars using only In-phase Channel” SAE 1999 World Congress, 1999-01-0486 1999
- Langheim I. J. Henrio J-F. Liabeuf B. “ACC Radar System with 77 GHz MMIC Radar” Haus der Technik Essen 1999
- Nakamura M. Takanoand K. Kuroda H. “76GHz FSK Monopulse Radar for ACC” 7 th ITS World Congress 2000
- Fujimura K. Hitotsuya M. Yamano S. Higashida H. “76GHz Millimeter-wave Radar for ACC” 32 nd ISATA 175 182 1999