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

页码：241 / 246

页数：6

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