| Remote Sensing is one set of comprehensive technology, which is based on the electromagnetic wave, through various methods to collect, process, analyze and extract the needed feature so as to recognize the existence, conditions and dynamic situations of the studied objects. As a kind of important technology used to collect geo-science data and the changing information of the Earth, Remote Sensing has been widely used in many countries and their various institutions.The prime form of contemporary Remote Sensing technology is as follows: through all kinds of sensors, collecting the imaging data within a specific electromagnetic spectrum and through analyzing and studying the acquired images so as to recognize the objects interested. That is to say, any remotely sensed image is objective record of the electromagnetic characteristic of ground objects. The process of interpretation and application of remotely sensed images is to retrieve the attributes and space-time dynamics of ground objects from the images that carry electromagnetic radiation information. Therefore, it is a key foundation of Remote Sensing technology to study the electromagnetic radiation characteristic of various ground objects, which in the meantime is an indispensable work to impel the progress of Remote Sensing technology.In the application of Remote Sensing, the refection, emission and microwave characteristic are mainly concerned and the primary spectral range includes reflection band: 0.36～2.5μm, reflection and emission band: 3～5μm, emission band: 8～14μm, and some microwave bands: >1cm. Nowadays, the contents of the study of ground objects spectral characteristic mainly include (1) the measurement of ground objects' spectra and the selection of the optimal window of multi-spectral Remote Sensing; (2) the study of remote sensing information models; (3) the study of thermal and microwave spectral characteristics; (4) the study of physical and mathematical patterns of ground objects' spectral characteristics; (5) the application of ground objects' spectra in the processing of imaging spectral data.Along with the development of Remote Sensing from the quality-oriented to the quantity-oriented and the increase in the spectral and spatial resolution of data source, such as 1-meter resolution of panchromatic band mounted on the Satellite IKONOS developed by Space Imaging Company, the relatively low resolution multi-spectral sensors have been gradually replaced by the high resolution counterparts. Nevertheless, the consequential problems of ever-increasing data amount engender new demands with regard to the collection, accumulation, and management of ground objects' spectra. Building spectra database of ground objects and using advanced computer technology to save, manage and analyze these data, on the one hand, can improve the capability and efficiency of the processing and analyzing of spectral information and strengthen the foundational research of Remote Sensing, and on the other hand can provide effective means for the application personnel. In the meantime, they provide both research and application personnel with convenient and rapid query system and flexible and adverse data processing function and promote the further development of research and application Remote Sensing.Along with the comprehensive application of Remote Sensing, the study of the interaction between Remote Sensing information and ground objects has further development. Especially, the application of imaging spectrometer not only reveals the importance of the study of spectral characteristic of ground objects but also promote the study in this domain. The spectrometer has achieved very good effects in image analyzing and application. The thesis, on the base of studying spectral characteristics of ground objects, uses Visual Basic 6.0 to design and implement database functions such as edition, query and analysis and studies the relationship between ground objects' spectral characteristics and remotely sensed information, which provide theore...
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