Motion compensation with one-axis gyroscope and two-axis accelerometer for automotive SAR

Author

Wu, Huaming ; Zwirello, Lukasz ; Li, Xuyang ; Reichardt, Lars ; Zwick, Thomas

Author_Institution

Inst. fur Hochfrequenztech. und Elektron., Karlsruher Inst. fur Technol., Karlsruhe, Germany

fYear

2011

fDate

14-16 March 2011

Firstpage

1

Lastpage

4

Abstract

On the basis of a previous one-axis accelerometer motion compensation system for automotive SAR, an updated scheme is presented in this paper, which contains a one-axis gyroscope and two-axis accelerometer. The requirement for extra Degrees of Freedom (DoF) leads to a new motion signal model. The complete procedure of calculating motion deviation in image display plane (IDP) from the raw roll angle rate and accelerations measured in body frame has been presented. The requirement for the Inertial Measurement Unit (IMU) has been analyzed quantitatively. According to the out-field measurements, the improved motion compensation system can cope with worse road conditions.

Keywords

accelerometers; gyroscopes; inertial systems; microsensors; motion compensation; road vehicle radar; synthetic aperture radar; automotive SAR; extra degrees of freedom; image display plane; inertial measurement unit; motion compensation; motion deviation; motion signal model; one axis gyroscope; two axis accelerometer; Accelerometers; Automotive engineering; Azimuth; Gyroscopes; Motion compensation; Radar; Roads; Allan Variance; FMCW; Motion compensation; SAR; accelerometer; gyroscope;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (GeMIC), 2011 German

Conference_Location

Darmstadt

Print_ISBN

978-1-4244-9225-1

Electronic_ISBN

978-3-9812668-3-2

Type

conf

Filename

5760751