中文摘要：

捷联惯性/卫星超紧组合导航技术是当前导航制导领域研究的热点和难点,对此研究具有重要的理论意义和应用价值,国内外研究者众多。但由于对超紧组合技术研究的出发点和应用对象不同,研究者所提出的超紧组合系统结构和原理不完全一致,针对这种混杂现象,目前尚无统一的分类标准。综合了捷联惯性/卫星超紧组合导航技术国内外发展现状,对现有超紧组合技术原理进行了详细分析,并在总结各类超紧组合结构的技术特点基础之上,将其分为基于相关数据浅度融合超紧组合、基于相关数据深度融合超紧组合和基于伪距数据超紧组合3种。最后,对捷联惯性/卫星超紧组合技术未来的发展趋势进行了展望。

英文摘要：

The ultra-tight SINS/GNSS coupled technology is a hotspot and difficulty of navigation research,because of its important theoretical significance and application value,which is studied widely in domestic and abroad.Due to the different intentions and purposes,ultra-tight methods proposed by researchers are different in principle and structure,even there is not a unified classification.The research status of ultra-tight SINS/GNSS integrated technology is reviewed and the principle is analyzed in detail.The advantages and disadvantages of all the ultra-tight methods are analyzed and summarized.Based on that,ultra-tight methods are divided into correlator data loosely fusion,deeply fusion and pseudo range data fusion.Finally,the development trends of the ultratight technology are pointed out.