Definition: real-time data processing system by multi-satellite.
Features: Low latency, low path loss tech supports cellular communication, multiple access and spot beam etc.
Applications: Military target acquisition, mobile communication etc.
Basic Concept:
A Low-orbit satellite system is a giant satellite system that can handle real-time data processing by multiple satellites.
Communication satellites can be classifieds into low earth orbit (LEO),medium earth orbit (MEO), and geostationary equatorial orbit (GEO) depending on the satellite’s orbit different heights to them. The LEO at altitudes between 500 to 2000km, the MEO at altitudes between 2000 to 36000km, and the GEO with an altitude of 36000km.
Application and features:
Low-orbit satellites are mainly applied to military target acquisition, beneficial to obtain the super-resolution of target images. It has the characteristics of low latency and low path loss for mobile communication.
Communication system composed of multiple satellites achieved more effectively of global frequency reuse. cellular communication, multiple access, spot beam and frequency reuse and other technologies also provide technical support for low-orbit satellite mobile communication.
Satellite Orbit Classifications:
| Satellite Orbit | Full name | Altitudes |
| LEO | Low Earth Orbit | 400-2,000 km |
| MEO | Middle Earth Orbit | 2,000-35,786 km |
| GTO | Geostationary Transfer Orbit
|
An elliptical orbit with perigee below 1,000 km and apogee at a geosynchronous orbit altitude of 36,000 km. |
| GEO | Geostationary Earth Orbit | The altitude of the geostationary satellite is 35,786 km |
| SSO |
Sun-synchronous Orbit
|
Below 6,000 km |
| IGSO | Inclined Geosynchronous Satellite Orbit
|
IGSO is a 24/7 geosynchronous orbit, also known as the no. 8 orbit. The center located longitude to the equator has the same altitudes as the GTO. The satellite is shifting from south to north back and forth 24/7. It is also a high utilization of area between GEO and MEO. |