高级检索

自主潜航器SINS与DVL对冰测速组合导航应用研究

Applied Research on SINS/DVL Integrated Navigation for Ice Speed Measurement of Autonomous Underwater Vehivles

  • 摘要: 针对传统捷联惯性导航系统(SINS)与多普勒测速仪(DVL)组合导航在极地海域因DVL量程受限无法实现对地测速而失效的问题,聚焦自主潜航器(AUV)极地近冰面作业场景,研究了基于SINS与DVL对冰测速的组合导航方案可行性。为验证该对冰测速方案,试验采用在AUV上搭载2套DVL的配置,分别开展对地测速与对冰测速。试验结果表明:DVL对冰测速精度远低于其标称的对地测速精度,且测速过程中存在较大幅度的震荡现象;在此基础上,SINS与DVL对冰测速组合导航方案的精度亦低于相同设备构成的对地测速组合导航系统。

     

    Abstract: To address the issue that the traditional integrated navigation of strapdown inertial navigation system (SINS) and Doppler velocity log (DVL) fails in polar marine areas due to the limited range of DVL, which makes ground velocity measurement impossible, this study focuses on the operating scenarios of autonomous underwater vehicles (AUVs) near ice surfaces in polar regions and investigates the feasibility of an integrated navigation scheme based on SINS and DVL for ice-relative velocity measurement. To verify this ice-relative velocity measurement scheme, the test adopts a configuration where the AUV is equipped with two sets of DVLs to conduct ground velocity measurement and ice-relative velocity measurement separately. The test results show that the accuracy of DVL for ice-relative velocity measurement is far lower than its nominal accuracy for ground velocity measurement, and there is a significant oscillation phenomenon during the velocity measurement process. On this basis, the accuracy of the integrated navigation scheme combining SINS and DVL for ice-relative velocity measurement is also lower than that of the ground-velocity-measurement integrated navigation system composed of the same equipment.

     

/

返回文章
返回