SINS/GPS/ADS integrated system is used, When navigation information from GPS is valid, and switch GPS to Bei-Dou when GPS appear the breakdown, SINS/Bei-Dou/ADS is established.

• 当GPS信息可用时系统工作于SINS/GPS/ADS模式,当GPS信息失效或不可用时,组合系统工作于SINS/北斗/ADS模式。