Publica
Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. Antenna array optimization strategies for robust direction finding
 Institute of Electrical and Electronics Engineers IEEE: 10th European Conference on Antennas and Propagation, EuCAP 2016. Proceedings : Took place 1015 April 2016 in Davos, Switzerland Piscataway, NJ: IEEE, 2016 ISBN: 9788890701863 ISBN: 9781509022342 5 pp. 
 European Conference on Antennas and Propagation (EuCAP) <10, 2016, Davos> 

 English 
 Conference Paper 
 Fraunhofer IIS () 
 drahtloses Kommunikationssystem 
Abstract
This paper focuses on the optimization of uniform circular antenna array (UCA) structures equipped with analog combining networks for direction finding applications. For such type of arrays, the specific choice of the combining matrix has a crucial impact on the effective radiation pattern and the sensitivity of directionofarrival (DOA) estimation. A design framework for constructing the combining network is proposed that improves the DOA estimation performance of the array while limiting the probability of false detection of the DOA estimator to a desired value. In detail, we first derive an analytical expression for the false detection probability of the DOA estimator. This function together with the CramerRao bound are then used to find the optimal combining matrix and array aperture size for a given number of sensor elements and combiner output (baseband) channels. We provide design examples to demonstrate the effectiveness of our approach.