TY - GEN
T1 - Measurement-Based Delay-and-Sum Signal Processing for Linear Antenna Arrays
AU - Schmid, Christian
AU - Feger, Reinhard
AU - Scheiblhofer, Stefan
AU - Stelzer, Andreas
PY - 2010/9
Y1 - 2010/9
N2 - The design of a delay-and-sum beamformer based on measured data is presented in this paper. Traditionally the weighting of a delay-and-sum beamformer is designed based on an idealized signal model, with specifications on the beam pattern in terms of the beam width and the sidelobe level (SLL). The goal is a trade-off between resolution and the ability to detect targets with a certain dynamic range. In this work we propose an approach to the optimization of a delay-and-sum beamformer with the same goal in mind however not based on the ideal signal model, but based on measured data. Being a measurement-based method even effects of non-idealities that are not part of the ideal signal model such as mutual coupling can be suppressed. The proposed approach is validated in simulations for a 77-GHz 36-elements non-uniform frequency-modulated continuous-wave radar array.
AB - The design of a delay-and-sum beamformer based on measured data is presented in this paper. Traditionally the weighting of a delay-and-sum beamformer is designed based on an idealized signal model, with specifications on the beam pattern in terms of the beam width and the sidelobe level (SLL). The goal is a trade-off between resolution and the ability to detect targets with a certain dynamic range. In this work we propose an approach to the optimization of a delay-and-sum beamformer with the same goal in mind however not based on the ideal signal model, but based on measured data. Being a measurement-based method even effects of non-idealities that are not part of the ideal signal model such as mutual coupling can be suppressed. The proposed approach is validated in simulations for a 77-GHz 36-elements non-uniform frequency-modulated continuous-wave radar array.
UR - http://hcac.hawaii.edu/conferences/tcwct2010/
U2 - 10.1109/ICWITS.2010.5612260
DO - 10.1109/ICWITS.2010.5612260
M3 - Conference proceedings
SN - 978-1-4244-7091-4
T3 - IEEE International Conference on Wireless Information Technology and Systems (ICWITS)
BT - Proc. of the International Conference on Wireless Information and Technology and Systems
A2 - IEEE, null
ER -