摘要
海水中声速沿深度方向分布较为复杂,致使准确定位难以实现。为提高定位精度,必须进行声速修正。提出了一种查表法,建立有效声速表进行声速迭代修正,此方法适用于各种定位系统。
In seawater it is hard to achieve accurate location because of the sound velocity varying with depth. So the correction of sound velocity must be considered carefully to get a better position accuracy. ESV ( Effective Sound Velocity) and A table - look - up method is established for correcting the sound velocity by building up a ESV ( Effective Sound Velocity) table. The method can be applied to all kinds of positioning systems.
出处
《山东农业大学学报(自然科学版)》
CSCD
北大核心
2006年第4期647-650,共4页
Journal of Shandong Agricultural University:Natural Science Edition
关键词
水声定位
声速修正
有效声速
Acoustic positioning
Correction of sound velocity
ESV