Satellite & Space Missions

Satellite Challenges and Solutions

Satellite Challenges and Solutions are line of sight, it must clear an object by at least the radius of the dish being used. But sometimes it is failed due to uncomfortable situations in the climate. Reliable GPS positioning in city environment is a key issue: actually, signals are prone to multipath, and satellite geometry, despite its improvement with GNSS interoperability, remains poor in many streets. Non-Line-Of-Sight (NLOS) satellites cause important receiver-satellite range measuring errors, because the direct signal is blocked and only the reflected signal is tracked. One of the challenges of satellite communications is latency - delays caused by distance and switching.  While this hardly matters with web surfing or broadcasts, it does become significant where fast interaction is required between users. Transmission delay is a function of the packet's length and has nothing to do with the distance between the two nodes. This delay is proportional to the packet's length in bits.