请用学术风格的语言重新表述下列文字：卫星互联网是基于卫星通信的互联网通过发射一定数量的卫星形成规模组网从而辐射全球构建具备实时信息处理的大卫星系统是一种能够完成向地面和空中终端提供宽带互联网接入等通信服务的新型网络具有广覆盖、低延时、宽带化、低成本等特点。传统地面通信骨干网在海洋、沙漠及山区偏远地区等苛刻环境下铺设难度大且运营成本高通过部署传统通信骨干网络在互联网渗透率低的区域进行延伸普及存在现实

Satellite internet is a new type of network based on satellite communication that uses a scalable network of satellites to provide global coverage and real-time information processing capabilities. It offers broadband internet access to both ground and airborne terminals, with features such as broad coverage, low latency, broadband capabilities, and low costs. Traditional terrestrial communication backbone networks face difficulties in extending coverage to remote areas such as deserts, oceans, and mountains due to high deployment costs. Deploying traditional communication backbone networks in areas with low internet penetration also presents significant challenges. Satellite internet provides an important means of bridging the digital divide and achieving continuous coverage of network information for all. Key commercial applications of low-earth orbit satellite communication include communication in remote areas, broadband for ocean operations and scientific research, aviation broadband, and disaster relief communication.

Several foreign companies, including OneWeb, O3b, SpaceX, and Telesat, have proposed satellite internet plans. O3b's constellation system is currently the only commercially operational medium-earth orbit satellite communication system in the world. SpaceX is the world's largest commercial satellite operator, having deployed nearly 360 satellites as part of its Starlink constellation project, with the sixth batch of 60 "star chain" satellites successfully launched on March 18, 2020. As low-earth orbit satellite orbital positions and spectrum resources become increasingly scarce, countries are deploying constellation plans, leading to a space resource battle over satellite launch "passports."

Encouraged by relevant policies, China's satellite industry has steadily developed, with several near-earth orbit satellite constellation plans launched since 2017. The construction of satellite internet, which was first included in the "new infrastructure" category, has risen to become a strategic national engineering project. During the 13th Five-Year Plan period, state-owned satellite groups led by China Aerospace Science and Technology Corporation and China Aerospace Science and Industry Corporation respectively proposed their own satellite internet plans and launched experimental satellites. In April 2020, the construction of satellite internet was included in the "new infrastructure" category for the first time. Social capital is driving China's aerospace industry into the commercial era, and a strategic layout of space orbit resources is being comprehensively developed. The construction of satellite internet has become a strategic national engineering project and has been integrated into remote sensing and navigation engineering, becoming an important component of China's integrated space and ground information system. As of now, China has launched over 10 low-earth orbit satellite projects with a network of more than 30 satellites each, with a total planned launch of 1,900 satellites