J4 ›› 2014, Vol. 41 ›› Issue (3): 209-213.doi: 10.3969/j.issn.1001-2400.2014.03.032

• Original Articles • Previous Articles     Next Articles

Time registration using the curve fitting algorithm of the adaptive changed length moving window

YONG Xiaoju;FANG Yangwang;GAO Xiang;YANG Pengfei   

  1. (College of Airospace Engineering, Air Force Engineering Univ., Xi'an  710038, China)
  • Received:2013-03-19 Online:2014-06-20 Published:2014-07-10
  • Contact: YONG Xiaoju E-mail:yongxiaoju1987@126.com

Abstract:

Aimed at the problem of the window length chosen in the time registration algorithm based on curve fitting, an adaptive window length chosen algorithm based on the mode of the movement of a target is proposed. The movement of the target is divided into like-linear mode and curvilinear mode, and the slope of the trace of the target at each data point is calculated, so the state breaking point and the mode of movement at the point of time registration can be confirmed and the length of the window is chosen adaptively. Large numbers of simulations show the reliability of this algorithm under the condition of time delay and the maneuvering target.

Key words: time registration, curve fitting, data fusion, multi-sensor