Time Synchronization and Temporal Ordering of Asynchronous Sensor Measurements of a Multi-sensor Navigation System

被引：0
|
作者：
Nilsson, John-Olof [1 ]
Handel, Peter [1 ]
机构：
[1] Royal Inst Technol KTH, Signal Proc Lab, ACCESS Linnaeus Ctr, SE-10044 Stockholm, Sweden
来源：
2010 IEEE-ION POSITION LOCATION AND NAVIGATION SYMPOSIUM PLANS | 2010年
关键词：
Synchronization; temporal ordering; asynchronous sensors; sensor fusion;
D O I：
暂无
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
In this article we propose a filter based method to solve the time synchronization and minimum delay temporal ordering problem of asynchronous sensor measurements. A problem which inevitably arise in the sensor fusion of a multi-sensor navigation system implemented in realtime on a general purpose operation system (OS) without using functionality dedicated to realtime applications. The time synchronization is done up to a constant error by linear filtering of time stamps given to each measurement. The filtered time stamps together with predicted future time stamps are then used in a measurement temporal ordering algorithm to achieve a minimal delay temporal ordering subject to a user specified jitter tolerance. Finally, experimental time synchronization and temporal ordering results from the system implemented with a typical set of navigation sensors are presented.
引用
收藏
页码：241 / 246
页数：6
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