Synthetic Aperture Radar Data Based On Wetland Information Extraction Applications

Qinghai Lake basin wetland ecosystem located in the northeast of Qinghai province, located in north latitude 36°15 '~ 38°20', longitude 97°50 '~ 101°20', its unique geographical environment and water and weather conditions gave birth to the wealth of species resources, with high ecological value, the Qinghai Lake basin wetland ecosystems in water conservation and protection of biodiversity and ensure sustainable development of society has played an important role, it is important to land and natural resources, with a variety of features and benefits . Qinghai Lake in 1992 was included in the《List of Wetlands of international protection》.In recent years, remote sensing techniques in wetland research Chengwei wetland study a popular means of using remote sensing technology for wetland survey is objective, accurate, economical, efficient, and other advantages, to overcome the traditional survey methodology shortcomings, improve efficiency and data accuracy promote the development of wetland science. Synthetic aperture radar (Synthetic Aperture Radar), referred to as SAR, is a work in the microwave band of the coherent imaging radar remote sensing systems are active. SAR imaging optical imaging reconnaissance reconnaissance overcome by the weather and light conditions of the defect, especially the difficulties of traditional imaging optical sensor has a special meaning in areas as remote sensing information technology indispensable for branch addition, radar remote sensing of water bodies sensitivity beyond the visible and infrared remote sensing and other sensing methods.The study by ALOS satellite phased formation L-band Synthetic Aperture Radar (PALSAR) radar image as the most important data source, using LANDSAT-TM image data to secondary data sources, data fusion after the wetland information extraction work, the Comprehensive use of other advantages of remote sensing and spatial data to improve the extraction accuracy of wetland information, developing microwave remote sensing information extraction project in a wetland area of applied research,Firstly, the importance of wetlands and the characteristics of radar remote sensing are outlined, and then overview of the wetland study area and data sources are introduced, focused on the data source processing, after processing the data, based on the data fusion method Wetland area to study the work of information extraction, the wetland study area obtained distribution map, and analyzed. Finally, conclusions and shortcomings...