The global covariance matrix of tracks fitted with a Kalman filter and an application in detector alignment

被引：46

作者：

Hulsbergen, W. D. ^{[1
]}

机构：

[1] Natl Inst Subat Phys Nikhef, Amsterdam, Netherlands

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 600卷 / 02期

关键词：

Alignment of tracking detectors; Kalman filter;

D O I：

10.1016/j.nima.2008.11.094

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present an expression for the covariance matrix of the set of state vectors describing a track fitted with a Kalman filter. We demonstrate that this expression facilitates the use of a Kalman filter track model in a minimum chi(2) algorithm for the alignment of tracking detectors. We also show that it allows to incorporate vertex constraints in such a procedure without refitting the tracks. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：471 / 477

页数：7

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