DocumentCode :
3228304
Title :
A calibration algorithm of millimeter-wave sparse arrays based on simulated annealing
Author :
Yang, Yong ; Tan, Yuan ; Liang, Ruihai ; Wang, Quan ; Yuan, Naichang
Author_Institution :
Microwave Center, Nat. Univ. of Defense Technol., Changsha, China
fYear :
2010
fDate :
8-11 May 2010
Firstpage :
1702
Lastpage :
1705
Abstract :
A new calibration method developed for millimeter wave sparse arrays is presented. The method estimates a calibration matrix to compensate for unequal gain and phase responses, and the small errors in element positions simultaneously. Firstly, the data collections are done by placing two pilot sources in different near-field positions. Then taking diagonal sensor gain/phase perturbation matrix and element position errors as optimization parameters, the objective function is presented according the principle of signal subspace. Using simulated annealing algorithm, the diagonal sensor gain/phase perturbation matrix and element position errors are estimated accurately finally. The usefulness and behavior of the proposed calibration method are illustrated though simulated experiments.
Keywords :
calibration; millimetre wave antenna arrays; simulated annealing; calibration algorithm; calibration matrix; diagonal sensor gain-phase perturbation matrix; element position errors; millimeter-wave sparse arrays; optimization parameters; phase responses; signal subspace; simulated annealing algorithm; unequal gain; Antenna arrays; Calibration; Millimeter wave technology; Mutual coupling; Phase estimation; Phased arrays; Sensor arrays; Simulated annealing; Sparse matrices; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
Type :
conf
DOI :
10.1109/ICMMT.2010.5524799
Filename :
5524799
Link To Document :
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