@inproceedings{ed08a45148034807a37207a09c9bfcaa,
title = "On imaginary-valued diagonal loading levels with application to hyperparameter-free robust adaptive beamforming",
abstract = "Robust adaptive beamforming algorithms with fully automatic diagonal level computation are desired but scarce in the literature. We note that the an imaginary-valued diagonal loading level well approximates but differs from its real-valued counterpart in terms of output signal-to-interference-plus-noise ratio (SINR), and an estimate of the optimal diagonal loading level can be found by the highest double-sided peak of the cross-correlation-coefficient curve of the two outputs using realand imaginary-valued diagonal loading levels with the same absolute values. The performance of the resulting beamformer is illustrated via numerical examples, compared with several other hyperparameter-free algorithms.",
author = "Xiaoming Gou and Zhiwen Liu and Yougen Xu",
year = "2014",
doi = "10.1109/RADAR.2014.6875571",
language = "English",
isbn = "9781479920341",
series = "IEEE National Radar Conference - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "134--138",
booktitle = "2014 IEEE Radar Conference",
address = "United States",
note = "2014 IEEE Radar Conference, RadarCon 2014 ; Conference date: 19-05-2014 Through 23-05-2014",
}