Satelliittiviestintäverkko

Satelliittiviestintäverkko refers to a communication network that utilizes artificial satellites to relay and transmit signals. These networks enable communication across vast distances, often bridging geographical barriers where terrestrial infrastructure is impractical or unavailable. The core components of such a network include ground stations, which send and receive signals, and the satellites themselves, which act as transponders in orbit.

Satelliittiviestintäverkko plays a crucial role in various applications. These include global telephony, internet access in remote areas, television broadcasting, navigation systems (like GPS), and military communications. The satellites are typically placed in geostationary orbit (GEO), medium Earth orbit (MEO), or low Earth orbit (LEO), with each orbital type offering different advantages in terms of latency, coverage, and satellite constellation complexity.

Different types of satellites are employed, such as geostationary satellites that appear fixed in the sky, providing continuous coverage over a specific region, and non-geostationary satellites which move across the sky, requiring a constellation of many satellites for persistent connectivity. The development of satelliittiviestintäverkko has continuously evolved, leading to increased bandwidth, lower latency, and more accessible services worldwide, impacting global connectivity and information dissemination.