Introduction to gaofen-3 satellite (GF-3)

Gaofen-3 satellite (GF-3） It is the first in China C Band 1m high resolution SAR Remote sensing satellite , The design department of Beijing space vehicle headquarters of China Academy of space technology is responsible for the overall development , Its launch time is 2016 year 8 month 10 Japan 6 when 55 branch . Gaofen-3 satellite can be used in many fields ：
1. Monitor our country 300 A vast sea area of 10000 square kilometers , Rapid response to maritime infringement emergencies , Integrated management of the oceans , Safeguard China's maritime rights and interests , It can also complete the disaster prediction task of global oceans and sea conditions ;
2. Monitor the whole country 960 Ten thousand square kilometers of land , It provides effective data support for the early warning of various disasters and post disaster relief and reconstruction ;
3. For water conservancy 、 meteorological 、 Agriculture 、 land 、 Surveying and mapping departments provide monitoring services , Improve industrial application ability .
The observation mode of Gaofen 3 totals 12 Kind of , It can detect land and sea . Each observation mode corresponds to a specific observation task , therefore , Gaogao-3 satellite is a synthetic aperture radar satellite with multi mission capability .
As a new microwave synthetic aperture radar satellite , High score No. 3 has five characteristics ：
1. New system 、 Quantify
A new system is adopted to design satellites , Make satellites collect as much information as possible , Its resolution can reach 1m, It has the highest resolution in the world C Band 、 Multipolar satellite . At the same time, the microwave image acquired by satellite has high performance .
2. Multimode 、 multi-function
High score number three has 12 Working mode , It is a synthetic aperture radar satellite with the most operating modes . High score number three has many functions ： Land can be observed 、 ocean 、 Polar glaciers, etc ; The spatial resolution is 1~500m, Width is 10-650km, It can realize the general survey and detailed survey of the objectives .
3. High power 、 better
The power of gaofen-3 satellite reaches 10000 watts , High performance microwave images can be obtained . At the same time, gaofen-3 satellite is the first synthetic aperture radar satellite with continuous imaging time of nearly hours in China , It greatly improves the ability of satellite to obtain data .
4. Large scale 、 High precision
Gaogao-3 satellite is the first large-scale satellite in China in low earth orbit 、 Large wingspan satellite .
5. Highly reliable 、 long life
Gaogao-3 satellite is the first satellite in China that has a long life in low earth orbit 8 Satellite in .
notes ： The article is excerpted from 《 High resolution remote sensing image processing and application based on deep neural network technology 》 Zhang Qiang waits