The CASI1500h and SASI600 introduced by GEA are the advanced airborne wide array hyperspectral imaging systems in the world. Through remote sensing flight, the fine spectral curves of vegetation, rock mass, soil, water, road and building on the ground can be obtained quickly, and the fine recognition of ground objects can be realized. Widely used in geological and mineral exploration and development, ecological environment monitoring and protection, agricultural, forestry, animal husbandry and fishery production and income increase, urban development monitoring, land development and utilization. Under the requirement of the same spectral resolution, it has higher spatial resolution and coverage, and is equipped with high-quality attitude system and stable platform. It has higher working accuracy and efficiency than other sensors.
GEA is equipped with core scanning and tripod scanning accessories at the same time, which can measure the fine spectrum of samples in the laboratory and meet the requirements of precision measurement.
Hyperspectral remote sensing technology is mainly used for ecological and environmental survey and resource exploration.
I.Classification of Black and Odorous Water by Hyperspectral Remote Sensing in a certain Area
From March to August 2018, an aerial hyperspectral flight operation was carried out in a certain area. High quality data of about 3,000 km2 in the new area were obtained. At the same time, corresponding geochemical analysis and water quality measurement were carried out, and a classification model of hyperspectral black and odorous water body was established. The grade of black odor can be divided into three grades. The grade of black odor can be divided into three grades. The grade of black odor can be classified as severe black odor. The grade of black odor can be classified as mild black odor. The extraction results show that the water quality near the shore is higher, far from the shore and near the center of the water area is better.
II.Alteration Mineral Extraction in a Certain Area
In November 2017, Airborne Hyperspectral Remote Sensing flight was carried out in a certain area. At the same time, corresponding geochemical exploration and ground spectral survey were carried out. Alterated minerals were extracted from the survey area, and good results were obtained through ground verification.