很好的GPS/INS超紧组合导航的文章，关键词：GPS,INS，超紧组合导航，抗干扰-The performance of an Ultra-Tightly Coupled (UTC) Global Positioning System/Inertial Navigation System (GPS/INS) is evaluated using a system simulation of the GPS receiver and navigation processing.

3d position tracking

对捷联惯导速度、位置和姿态进行解算，其中姿态解算采用的是四元数法。(The velocity, position and attitude of strapdown inertial navigation system are calculated)