CAJ | 학술논문

海上目标多手段融合探测中，需要等时间间距的AIS信息来描述船只的航行轨迹，作为验证其他船只探测手段的依据。针对传统的AIS线性插值方法在同一船只相邻2条AIS信息时间间隔过长时产生较大偏差的问题，本文提出一种新的AIS航迹插值方法。该方法综合考虑了目标的航速、航向等动态信息，通过对插值时间段内的船只位置进行预测，形成运动船只在该时间段内的插值航迹。最后，利用实测AIS数据对该方法进行验证，结果表明，相比线性插值，本文所提方法的航迹插值结果更接近船只在插值时间段内的实际航行轨迹。
해상목표다수단융합탐측중，수요등시간간거적AIS신식래묘술선지적항행궤적，작위험증기타선지탐측수단적의거。침대전통적AIS선성삽치방법재동일선지상린2조AIS신식시간간격과장시산생교대편차적문제，본문제출일충신적AIS항적삽치방법。해방법종합고필료목표적항속、항향등동태신식，통과대삽치시간단내적선지위치진행예측，형성운동선지재해시간단내적삽치항적。최후，이용실측AIS수거대해방법진행험증，결과표명，상비선성삽치，본문소제방법적항적삽치결과경접근선지재삽치시간단내적실제항행궤적。
In the multi-methods fusion detection of marine targets, equal time spacing AIS messages are needed to describe the vessels’ tracks, thus to be a basis for verifyingother vessel detection methods. If there is a long time interval between two adjacent AIS messages sent by one vessel, the traditional linear interpolation for AIS may cause large deviation. To solve this problem, this article proposed a new AIS track interpolation method. This method forecasts the vessel′s positions during the interpolation time period by taking into account the dynamic information of AIS, such as speed, course and so on, and then forms the interpolation track of the moving vessel. At last, the proposed method is verified by measured AIS data. The result shows that, comparing with linear interpolation, the track interpolation result of the method proposed by this article is closer to the real vessel track during the interpolation time period.