摘要
在多传感器数据融合系统中,要求融合处理的各传感器数据必须是同一时刻的,这样才可能计算出目标的正确状态。但实际系统中,由于数据传播的延迟、传感器采样周期的不统一等,都会带来时间上的误差,而时间误差对测量的距离数据和距离变化率数据都会带来很大的影响,因此在融合前必须进行时间配准。本文着重分析了目前时间配准常用的几种算法,并分别进行仿真验证,得出了有益的结论。
In a multi-sensor data fusion system, the data to be fused acquired by each sensor are requied to be at the same time so that the correct status of the target can be worked out. But actually the time error exists for the data transmission delay and the disaccordance of sampling cycles among sensor. Such error has great effect on the measured dis tance and the distance changing rate.Therefore the time registration must be done before fusion. In this article several commonly used algorithms are analyzed,and simulation are made to get some useful results.
出处
《雷达与对抗》
2005年第2期16-19,34,共5页
Radar & ECM
关键词
多传感器
数据融合
时间配准
multiple sensors
data fusion
time registration
