摘要
水下GPS定位是近几年发展起来的高新技术。承载GPS接收机的海上浮标由于受海浪的影响,使得GPS接收信号附加了海浪信息,最终影响到水下目标的精确定位。针对海浪影响水下GPS定位精度现状,提出基于样条函数的数据分频处理方法,从而有效地分离海浪引起的长周期性漂移误差和短周期性随机误差,提高水下GPS定位精度。通过对实测数据的处理,证明了该方法的有效性。
The underwater GPS localization is a high-tech submarine localization which develops in recent years. Ocean wave action on the sea buoy bearing GPS receiver causes GPS to receive the signal containing ocean waves information and finally affects the precise location of under- water targets. In view of the influence of ocean wave on the accuracy of underwater GPS, a data frequency division processing method is given based on the spline function to separate the long period excursion error and the short period random error which the ocean wave causes effectively, thus imoroving the accuracv of underwater UPS. The processing of the measured data proves the validity of the method.
出处
《海洋工程》
CSCD
北大核心
2009年第1期106-109,114,共5页
The Ocean Engineering
关键词
水下GPS定位
海浪
样条函数
分频
underwater GPS
ocean wave
spline function
frequency division
