News Categories

Recently, space agencies from various countries, including China, have been launching various types of artificial satellites, including oceanographic, meteorological, and communication satellites. In August 2022, a total of 18 space launches were conducted globally, successfully sending 300 spacecraft into space. Among them, 297 are operating in low Earth orbit (including 1 lunar orbiter, 5 groups of 251 Starlink satellites, 1 reusable experimental spacecraft, and 1 secret satellite, of which 133 are operating in sun-synchronous orbit), 1 is operating in geostationary orbit, 1 is operating in lunar orbit, and 1 has an unknown orbit.

In space remote sensing, remote sensors used for information collection can be broadly classified into two categories: optical and microwave. Among them, space cameras or spaceborne cameras that use optical imaging as a remote sensing method are more commonly used. These are optical-mechanical instruments installed on space platforms that provide power, attitude stabilization, environmental control, and orbital support, working in conjunction with ground stations to photograph the Earth or space targets in optical bands (ultraviolet, visible light, and infrared) and transmit the information back. They integrate optical, mechanical, electronic, thermal, control, and information processing technologies.

With the continuous development of global aerospace technology, high-definition images captured by satellites are playing an indispensable role in people's lives. Using satellite imagery, people can better conduct urban planning and construction, address river and soil pollution, carry out earthquake relief, monitor agricultural pests and diseases, and conduct mineral exploration, among other tasks. Whether in national welfare, national security, or space exploration, satellite imagery has enormous potential.

In recent years, with advancements in aerospace technology and launch capabilities, satellites have become increasingly smaller, their orbital altitudes have decreased, and their deployment frequency has increased significantly. Leveraging advantages such as standardization, modularity, low cost, short development cycles, and flexible deployment, the microsatellite industry has rapidly emerged, with an increasing number of commercial small satellite projects being deployed, officially ushering in the era of small satellites.

Today, amidst the steady development of the global aerospace industry, China is actively investing in aerospace construction. Against this backdrop, commercial aerospace has experienced rapid growth in recent years, and the market has begun to take shape. Data shows that the size of China's commercial aerospace market is expected to exceed 1.5 trillion yuan in 2022. In terms of market size, China's commercial aerospace industry has entered a period of rapid development; in terms of application scenarios, although commercial aerospace is still in its early stages of development, its room for growth and potential are enormous.

"Peaking carbon emissions and achieving carbon neutrality" refers to the process by which carbon dioxide emissions gradually increase, eventually reaching an inflection point where the annual growth rate reaches zero, and then continuously decline until carbon emissions and carbon removal offset each other, achieving carbon neutrality. The process from "peaking carbon emissions" to "carbon neutrality" represents a shift from relative decoupling to absolute decoupling between economic growth and carbon dioxide emissions. The proposed goals and vision of "peaking carbon emissions and achieving carbon neutrality" elevate China's green development path to a new level, becoming one of the main themes of China's socio-economic development for the next few decades.

With the rapid development of atmospheric sounding and modeling technologies, tracing carbon emissions through atmospheric carbon dioxide concentration observation is considered an effective method for assessing greenhouse gas emission reduction achievements. On December 22, 2016, my country launched its first carbon dioxide observation scientific experimental satellite, TanSat, becoming the third country in the world to provide carbon satellite data.

On October 25, 2021, the World Meteorological Organization (WMO) released its 2021 Greenhouse Gas Bulletin. According to the Bulletin, the global average concentration of CO2 reached 413.2 ppm in 2020, 149% of pre-industrial levels. The annual growth rate of CO2 concentration in 2019-2020 was higher than the average level from 2011-2020.

"Exploring the vast universe, developing the space industry, and building a space power are our unremitting space dream." — Standing at the strategic juncture of achieving the "two centenary goals," General Secretary Xi Jinping personally outlined the grand blueprint for the leapfrog development of China's space industry, embarking on the great journey of building a space power.

With the continuous development and innovation of hyperspectral technology, significant progress has been made in data acquisition, radiometric calibration, spectral reconstruction, data processing, and ground feature identification. It holds immense commercial market value in areas such as geological mapping, solid mineral and oil and gas surveys, atmospheric sounding, plant growth monitoring and agricultural yield estimation, environmental monitoring, and seawater organic matter detection. It can serve not only industries such as natural resources, agriculture, and environmental protection, but also governments, providing more objective, rapid, and accurate data support for national governance and precise policy implementation. Hyperspectral technology is a new driving force for the development of my country's commercial aerospace industry and occupies a pivotal position in this field.