中文摘要：

在许多学科和国民经济的重大领域中，航空航天遥感Rs技术、地理信息系统GIS技术、空间定位GPS技术3种对地观测新技术发挥着越来越重要的作用，分析了3种技术特点及现状，对3S集成技术及发展趋势进行了探讨。

英文摘要：

In many disciplines and the major areas of national economy, the three kinds of earth observation technology, remote sensing RS, geographic information system GIS and spatial positioning GPS, are playing an increasingly important role. Based on the analysis of the characteristics and status quo of the three kinds of tehnology, the 3S integration technology and its development trend are discussed in detail.