求地球上两点的距离，介绍了四种方法，都有很好的参考价值-The distance between two points on Earth seeking to introduce the four methods, there is a very good reference value

Matlab code earth coordinates transformation-Matlab code Earth fix coordinates to geodetic coordinate transform

The solar energy received in one day is equivalent to more than ten times the anual energy consumption of everyone on earth. This revelation along with the worldwide trend of green energy, has led to an exponential growth of the number of Pho

本书是作者在总结多年研究生“卡尔曼滤波与组合导航原理”课程的教学经验，吸收十余年从事惯性导航与组合导航技术研究的科研成果，以及参阅国内外众多文献资料的基础上编写的，注重基础理论与工程实践相结合，实用性与可操作性强。全书共八章，主要包括捷联惯导算法及其误差分析、地球重力场基础、卡尔曼滤波基本原理、初始对准与组合导航技术、捷联惯导与组合导航仿真等内容。书中附有丰富的Matlab仿真程序可供参考，还有练习题可供读者拓展学习或学生练习使用。(In this book the author summari