System research and demonstrating application of Double Star combined new mode of survey on the situation of land use

Abstract

This paper selects the four districts of Beijing-Shunyi District, Tongzhou District, Huairou District and Pinggu District, integrates with the strong points of Beijing-1 small satellite ("autonomous control, flexible and maneuverable, short re-visit period") as well as those of survey-type GPS "Star of Survey" (easy operation, high mapping precision) ("Double Star Mode for short"), carries out quarterly survey on land use changes survey in the four demonstration and application districts and makes analysis of the demonstration and application in terms of operation, technology and fund. It proves, this mode can accomplish the working target of land survey-"Monthly Settlement and Quarterly Accumulation",shortens the previous yearly alteration survey to quarterly survey, which saves large manpower, material resources and funds. This mode provides technical reference for the survey on land use carried out in some economy-developed regions.