Research On Application Of Remote Sensing Monitoring Of Target With Variability Based On Domestic Satellite Image

There are many islands and reefs in the south China sea.The Marine variable object refers to the change with time,and the observed object will show different regularity in form.In this paper,islands and reefs are taken as the main body of study,which are composed of islands,sandbars and coral reefs.In view of the impact of human development and natural factors on islands and reefs in recent years,this paper analyzes the changes of islands and reefs from different perspectives through the monitoring of maritime islands and reefs.Due to the special geographical location,it is not easy to study by traditional methods.Remote sensing provides a convenient means for all-day and all-weather observation,while the domestic series satellites have the advantage of high resolution and convenient acquisition,providing a good means for the monitoring of offshore variable objects.This paper solves the following scientific problems:(1)compared and analyzed the domestic and foreign mainstream satellite data,illustrated the advantages of domestic satellite data,and summarized the application of domestic satellite data.The data applications of CBERS-1/2,ZY-02B/C,HJ-1A/B,ZY-3 and GF-1/2 satellites are summarized,involving environmental monitoring,Marine ecology,mineral survey,disaster monitoring and other fields.It shows that the domestic satellite data is widely used,can meet the research needs,to provide the public with quality services(2)compared to the high scores series data with the domestic Marine satellite data,from two aspects of the spatial resolution,spectral resolution this high score data are analysed and the characteristics of the Marine data,the results show that high marks data of the technical indicators can meet the demand of research,finally determine the high score data as data sources in order to develop offshore sea change target monitoring research;(3)a system flow has been formed for the monitoring of offshore variable objects.From the research area selection and delineation,to the data acquisition and preprocessing;Then from the Marine variable object extraction,to the extraction of the results of the analysis.Finally,a monitoring system based on high resolution satellite data was formed.