Study on application of GPS-PDA in land changing survey based on 3S technology
Jiang Hongbo · Cehui kexue · 2008
In this article,the necessity of land changing survey and disadvantage of traditional land changing survey are analysed firstly.Secondly,the development trends and direction of home and abroad in land changing survey are introduced.Thirdly,the technical route of 3S technology in land changing survey and the work procedure of GPS-PDA used in the land changing survey based on the 3S technology is narrated.Finally,the work procedure for whole system as well as its advantage is indicated with a practical example.