Details
| Original language | English |
|---|---|
| Title of host publication | 2017 18th International Radar Symposium |
| Subtitle of host publication | IRS 2017 |
| Editors | Hermann Rohling |
| Publisher | IEEE Computer Society |
| ISBN (electronic) | 9783736993433 |
| Publication status | Published - Aug 2017 |
| Event | 18th International Radar Symposium, IRS 2017 - Prague, Czech Republic Duration: 28 Jun 2017 → 30 Jun 2017 |
Publication series
| Name | Proceedings International Radar Symposium |
|---|---|
| ISSN (Print) | 2155-5753 |
Abstract
Radar sensors play an important role in the technology field of autonomous driving. In contrast to optical cameras, they work reliable by night, mist, snow and fog. Recent radar sensors have problems in near-field scenarios. In this paper, we investigate how the technique of synthetic aperture radar (SAR) can be used to reconstruct the 3D near-field environment up to 30m with several physical radar sensors using the global backprojection algorithm. The main challenge applying SAR to an automotive 77 GHz radar sensor with 2 GHz bandwidth and a short sweep duration of 10 μs is to avoid azimuth aliasing, which means avoiding ghost targets. In the case of monostatic SAR, the sensors have to be placed 1mm next to each other, which is unrealistic in practice. By using multiple input single output (MISO) sensors arranged in a circular manner we increase this distance to 4 cm, which is now feasible in practice. This sensor arrangement enables applying SAR to near-field automotive applications.
ASJC Scopus subject areas
- Computer Science(all)
- Computer Networks and Communications
- Computer Science(all)
- Computer Science Applications
- Computer Science(all)
- Signal Processing
- Engineering(all)
- Electrical and Electronic Engineering
- Physics and Astronomy(all)
- Astronomy and Astrophysics
- Physics and Astronomy(all)
- Instrumentation
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2017 18th International Radar Symposium: IRS 2017. ed. / Hermann Rohling. IEEE Computer Society, 2017. 8008121 (Proceedings International Radar Symposium).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - 3D Multiple Input Single Output Near Field Automotive Synthetic Aperture Radar
AU - Sommer, Aron
AU - Ngo, Tri Tan
AU - Ostermann, Jörn
PY - 2017/8
Y1 - 2017/8
N2 - Radar sensors play an important role in the technology field of autonomous driving. In contrast to optical cameras, they work reliable by night, mist, snow and fog. Recent radar sensors have problems in near-field scenarios. In this paper, we investigate how the technique of synthetic aperture radar (SAR) can be used to reconstruct the 3D near-field environment up to 30m with several physical radar sensors using the global backprojection algorithm. The main challenge applying SAR to an automotive 77 GHz radar sensor with 2 GHz bandwidth and a short sweep duration of 10 μs is to avoid azimuth aliasing, which means avoiding ghost targets. In the case of monostatic SAR, the sensors have to be placed 1mm next to each other, which is unrealistic in practice. By using multiple input single output (MISO) sensors arranged in a circular manner we increase this distance to 4 cm, which is now feasible in practice. This sensor arrangement enables applying SAR to near-field automotive applications.
AB - Radar sensors play an important role in the technology field of autonomous driving. In contrast to optical cameras, they work reliable by night, mist, snow and fog. Recent radar sensors have problems in near-field scenarios. In this paper, we investigate how the technique of synthetic aperture radar (SAR) can be used to reconstruct the 3D near-field environment up to 30m with several physical radar sensors using the global backprojection algorithm. The main challenge applying SAR to an automotive 77 GHz radar sensor with 2 GHz bandwidth and a short sweep duration of 10 μs is to avoid azimuth aliasing, which means avoiding ghost targets. In the case of monostatic SAR, the sensors have to be placed 1mm next to each other, which is unrealistic in practice. By using multiple input single output (MISO) sensors arranged in a circular manner we increase this distance to 4 cm, which is now feasible in practice. This sensor arrangement enables applying SAR to near-field automotive applications.
UR - http://www.scopus.com/inward/record.url?scp=85028620025&partnerID=8YFLogxK
U2 - 10.23919/irs.2017.8008121
DO - 10.23919/irs.2017.8008121
M3 - Conference contribution
AN - SCOPUS:85028620025
T3 - Proceedings International Radar Symposium
BT - 2017 18th International Radar Symposium
A2 - Rohling, Hermann
PB - IEEE Computer Society
T2 - 18th International Radar Symposium, IRS 2017
Y2 - 28 June 2017 through 30 June 2017
ER -