这是秦勇元老师写的一本关于GPS和惯性组合的书，原理及方案设计讲的都很新颖，对初学者很有帮助！-This is QinYong yuan teacher wrote a book about GPS and the inertia of the combination of book, principle and design telling very novel, to beginners helpful!

gps编码协议，是对元协议的一种补充和说明，是最新的版本-gps coding protocol is a supplement to, and descr iptions of the yuan agreement, the latest version