Group items tagged

Radio Monsoon aims to ensure safety reigns among fishermen in south India.

Cyber threats prompt return of radio for ship navigation.

Détroit : 11 migrants secourus au large de Calais, 7 réussissent à traverser.

Free space optical system could provide alternative to traditional radio frequency system

The propagation of electromagnetic waves on land and sea is significantly different. Although the Los scenario is significant in marine wireless communication, the marine wireless channel exists an obvious two-ray phenomenon due to the strong reflection path reflected through the sea surface. By modeling the measured data of marine wireless channels, this paper calculates the radio propagation characteristics of the Pearl River estuary. In addition, the wave fluctuations and high humidity environment will also impact the properties of the marine wireless channel. Therefore, sea surface morphology models under multiple wind speeds are built. To estimate the path loss in the same area under different conditions, the Monte Carlo method is employed to quantify the results. The simulation results show that the electric wave propagation gradually degenerated from the round earth loss (REL) model to the free space model with increasing wind speed. Moreover, the distribution of the shadow fading varies with distance. The findings provide references for the network planning of marine communication

La Chine appelle à aider les pays du golfe de Guinée à lutter contre la piraterie maritime.

Coast Guard rescues 10 from burning fishing boat.

11 sailors released by Somali pirates.

Canadian sailor rescued off Australian coast.

Crashed freighter leaking oil in archipelago.

China to enhance communication ability in Northeast Passage of Arctic.

Two people were dramatically rescued off Cornwall early this morning (18th November) after their sailing vessel began taking on water and started to sink.