随着GPS性能的不断完善，应用越来越广泛，但GPS系统易受到外界环境影响，而传统的惯导系统也具有误差随时间积累的缺陷，因此GPS/INS组合方式因其互补性强已经成为实现导航的重要方式。这种组合方式能够确保在采用较廉价的惯性设备的情况下，也能获得较好的导航效果。-With the constant improvement of the GPS performance, more and more widely, but the GPS system vulnerable to external environmental impact, and the defects of traditional inertial navigation system error accumulated over time, so the GPS/INS Integrated because of its strong complementary already become an important way of navigation. This combination can be ensured in the case of using cheaper inertia device, it can get better navigation results.