An efficient array calibration method on underwater high resolution direction-finding

2002 ◽  
Author(s):  
Jianfeng Chen ◽  
Jianguo Huang
Keyword(s):  
High Resolution ◽  
Calibration Method ◽  
Direction Finding ◽  
Array Calibration

High-resolution direction finding: the missing data case

2001 ◽  
Vol 49 (5) ◽  
pp. 950-958 ◽  
Author(s):  
E.G. Larsson ◽  
P. Stoica
Keyword(s):  
Missing Data ◽  
High Resolution ◽  
Direction Finding

THE CALIBRATION OF AN ARRAY OF ACCELEROMETERS

2011 ◽  
Vol 35 (2) ◽  
pp. 251-267 ◽  
Author(s):  
Dany Dubé ◽  
Philippe Cardou
Keyword(s):  
Angular Velocity ◽  
Rigid Body ◽  
Least Squares ◽  
Calibration Method ◽  
Calibration Procedure ◽  
Rigid Bodies ◽  
New Method ◽  
Scale Factors ◽  
Array Calibration ◽  
The One

An accelerometer-array calibration method is proposed in this paper by which we estimate not only the accelerometer offsets and scale factors, but also their sensitive directions and positions on a rigid body. These latter parameters are computed from the classical equations that describe the kinematics of rigid bodies, and by measuring the accelerometer-array displacements using a magnetic sensor. Unlike calibration schemes that were reported before, the one proposed here guarantees that the estimated accelerometer-array parameters are globally optimum in the least-squares sense. The calibration procedure is tested on OCTA, a rigid body equipped with six biaxial accelerometers. It is demonstrated that the new method significantly reduces the errors when computing the angular velocity of a rigid body from the accelerometer measurements.

scholarly journals Array calibration method for gain-phase errors based on asynchronous interstation direct wave interference

2012 ◽  
Vol 9 (6) ◽  
pp. 450-457
Author(s):  
Liu Bin ◽  
Wu Xiongbin ◽  
Li Lun ◽  
Xu Xing'an ◽  
Long Chao
Keyword(s):  
Calibration Method ◽  
Direct Wave ◽  
Phase Errors ◽  
Wave Interference ◽  
Array Calibration
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