A D-optimal Multi-position Calibration Method for Dynamically Tuned Gyroscopes  

作　　者：FU Li ZHU Yongquan WANG Lingling WANG Xinling 

机构地区：[1]School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China

出　　处：《Chinese Journal of Aeronautics》2011年第2期210-218,共9页中国航空学报（英文版）

基　　金：National Natural Science Foundation of China (61071014);National Basic Research Program of China(2009CB72400201)

摘　　要：This paper presents a novel experimental design to greatly improve the calibration accuracy of the acceleration-insensitive bias and the acceleration-sensitive bias of the dynamically tuned gyroscopes（DTGs）.In order to reduce experimental cost,the D-optimal criteria with constraints are constructed.The turntable positions and the number of test points are chosen to build D-optimal experimental designs.The D-optimal experimental designs are tested by multi-position calibration experiment for tactical-grade DTGs.Test results show that,with the same cost,the fit uncertainty is reduced by about 50% by using the D-optimal 8-position experimental procedure,compared to using a defacto standard experimental procedure in ANSI/IEEE Std 813-1988.Furthermore,the new experimental procedure almost achieves optimal accuracy with only 12-position which is half the cost of the widely adopted 24-position experimental procedure for achieving optimal accuracy.This paper presents a novel experimental design to greatly improve the calibration accuracy of the acceleration-insensitive bias and the acceleration-sensitive bias of the dynamically tuned gyroscopes（DTGs）.In order to reduce experimental cost,the D-optimal criteria with constraints are constructed.The turntable positions and the number of test points are chosen to build D-optimal experimental designs.The D-optimal experimental designs are tested by multi-position calibration experiment for tactical-grade DTGs.Test results show that,with the same cost,the fit uncertainty is reduced by about 50% by using the D-optimal 8-position experimental procedure,compared to using a defacto standard experimental procedure in ANSI/IEEE Std 813-1988.Furthermore,the new experimental procedure almost achieves optimal accuracy with only 12-position which is half the cost of the widely adopted 24-position experimental procedure for achieving optimal accuracy.

关 键 词：optimization methods CALIBRATION GYROSCOPES error compensation design for testability 

分 类 号：TP393.11[自动化与计算机技术—计算机应用技术] U666.123[自动化与计算机技术—计算机科学与技术]