Extremely fast focal-plane wavefront sensing for extreme adaptive optics CU Keller, V Korkiakoski, N Doelman, R Fraanje, R Andrei, M Verhaegen arXiv preprint arXiv:1207.3273, 2012 | 37 | 2012 |

Iterative linear focal-plane wavefront correction CS Smith, R Marinică, AJ Den Dekker, M Verhaegen, V Korkiakoski, ... JOSA A 30 (10), 2002-2011, 2013 | 24 | 2013 |

Numerical solution to a descriptor discrete-time algebraic Riccati equation C Oară, R Andrei Systems & Control Letters 62 (2), 201-208, 2013 | 22 | 2013 |

Experimental validation of optimization concepts for focal-plane image processing with adaptive optics V Korkiakoski, CU Keller, N Doelman, R Fraanje, R Andrei, M Verhaegen Adaptive Optics Systems III 8447, 1966-1976, 2012 | 13 | 2012 |

Zero cancellation for general rational matrix functions C Oară, R Andrei Linear algebra and its applications 431 (11), 2000-2023, 2009 | 11 | 2009 |

Real-time wavefront reconstruction from intensity measurements CS Smith, R Marinica, M Verhaegen 3rd AO4ELT Conference: Adaptive Optics for Extremely Large Telescopes, 2013 | 9 | 2013 |

J factorizations of a general discrete-time system C Oară, R Marinică Automatica 49 (7), 2221-2228, 2013 | 8 | 2013 |

Computation of the General -Lossless Factorization C Oară, R Andrei IEEE transactions on automatic control 56 (3), 710-717, 2010 | 6 | 2010 |

State feedback control with quadratic output for wavefront correction in adaptive optics R Marinică, CS Smith, M Verhaegen 52nd IEEE Conference on Decision and Control, 3475-3480, 2013 | 5 | 2013 |

Linear analytical solution to the phase diversity problem for extended objects based on the Born approximation RM Andrei, CS Smith, R Fraanje, M Verhaegen, VA Korkiakoski, ... Proc. SPIE. 8447, Adaptive Optics Systems III 84476U, 2012 | 5* | 2012 |

Fast phase diversity wavefront sensing using object independent metrics CS Smith, AJ den Dekker, R Andrei, R Fraanje, M Verhaegen Adaptive Optics Systems III 8447, 2250-2258, 2012 | 4 | 2012 |

The descriptor discrete–time riccati equation: Numerical solution and applications C Oara, R Andrei Proceedings of the 20th International Symposium on Mathematical Theory, 2012 | 2 | 2012 |

The (J, J′)-spectral factorization of a general discrete-time system C Oară, R Andrei Proceedings of the 2011 American Control Conference, 3722-3727, 2011 | 2 | 2011 |

The general (J, J′)-lossless factorization for descriptor discrete-time systems C Oară, R Marinică 2012 IEEE 51st IEEE Conference on Decision and Control (CDC), 220-225, 2012 | 1 | 2012 |

Computation of the (J, J')-spectral and (J, J')-lossless factorizations of a general system C Oară, R Andrei Proceedings of the 2010 American Control Conference, 1085-1090, 2010 | 1 | 2010 |

Optimisation under uncertainty applied to a bridge collision problem K Shariatmadar, R Andrei, G De Cooman, P Baekeland, E Quaeghebeur, ... ISMA-USD, 2010 | 1 | 2010 |

Focal-plane wavefront estimation and control using the extended Kalman filter CS Smith, R Marinică, J Antonello, AJ den Dekker, M Verhaegen 2012 International Symposium on Optomechatronic Technologies (ISOT 2012), 1-6, 2012 | | 2012 |

Potential of phase-diversity for metrology of active instruments V Korkiakoski, L Venema, T Agocs, CU Keller, N Doelman, R Fraanje, ... Modern Technologies in Space-and Ground-based Telescopes and Instrumentation …, 2012 | | 2012 |

FORMULAS FOR THE DISCRETE-TIME(J, J')-SPECTRAL FACTORIZATION OF A GENERAL SYSTEM R Andrei University" Politehnica" of Bucharest Scientific Bulletin, Series C …, 2011 | | 2011 |

Contributions to robust control in singular cases RM Andrei University Politehnica of Bucharest, 2010 | | 2010 |