Zhang Liu

Zhang Liu 

Navigation and Control Engineer
MQ-4C Triton Unmanned Aircraft
Northrop Grumman Corporation

Contact Information

Northrop Grumman Corporation
M/S: R3-2 B04
16710 Via Del Campo Court
San Diego, CA 92127

Phone: (858) 618-3729
Email: zhang.liu@gmail.com
Homepage: http://www.zhang-liu.com/

Education

Publications

Nuclear norm system identification with missing inputs and outputs

Z. Liu, A. Hansson, and L. Vandenberghe
Systems and Control Letters, 62(8):605-612, 2013

Subspace system identification via weighted nuclear norm optimization

A. Hansson, Z. Liu, and L. Vandenberghe
Proceedings of the IEEE 51st Annual Conference on Decision and Control, pages 3439-3444, 2012

Interior-point methods for large-scale cone programming

M. Andersen, J. Dahl, Z. Liu, and L. Vandenberghe
S. Sra, S. Nowozin, and S. J. Wright, editors, Optimization for Machine Learning, pages 55-83, MIT Press, 2011

Notes on dual gradient projection method for nuclear norm approximation and system identification

Z. Liu and L. Vandenberghe
Technical report, UCLA, 2010

Semidefinite programming methods for system realization and identification

Z. Liu and L. Vandenberghe
Proceedings of the Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference, pages 4676-4681, 2009

Interior-point method for nuclear norm approximation with application to system identification

Z. Liu and L. Vandenberghe
SIAM Journal on Matrix Analysis and Applications, 31(3):1235-1256, 2009

Low-rank structure in semidefinite programs derived from the KYP lemma

Z. Liu and L. Vandenberghe
Proceedings of the 46th IEEE Conference on Decision and Control, pages 5652-5659, 2007

Ph.D. Thesis

Structured semidefinite programs in system identification and control

Electrical Engineering Department, UCLA, 2009
Advisor: Lieven Vandenberghe

U.S. Patent

Tracking arrangement for a communications system on a mobile platform

Z. Liu and G. A. Shreve, Patent No. 7,956,806, Northrop Grumman Corp., 2011

Software

  • SIMIO: Matlab package for system identification with missing inputs and outputs

  • NucNrmApp: Python package for solving nuclear norm approximation problems

  • gKYPSDP: Matlab package for solving generalized KYP SDPs

Tutorials

Miscellany