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Importance of satellite communications

Published : Monday, 18 March, 2024 at 12:00 AM  Count : 780
MD Jahedul Islam
The origin storage and processing of information is called Information and Communications Technology. Satellite communication technology is playing a very important role in modern communication systems. Satellites have played a major role in the development of communication systems, weather and the mysteries of the earth and space. The biggest and most important benefit of satellite technology is in the communication system. Satellite communication system connects all the world through network. Modern information technology is mainly used in the manufacture of satellites combining electrical and electronic devices. Satellites are mainly used for data collection and observation. Different types of parts are used in each satellite according to the type of work.

However two common parts in every satellite are the antenna and the power source. Satellites can be of different shapes. Antennas do the job of receiving and collecting data. Solar panels or batteries can act as the power source. Satellites are equipped with cameras and some sensors. Based on the orbit, the satellite system is divided into Low-Earth Orbit (LEO), Medium Earth Orbit (MEO) and Geostationary Earth Orbit (GEO). Recently, in order to reduce pollution in space, Japanese scientists are planning to build artificial satellites made of wood, "Lignosat", based on the idea of using alternative materials such as environmentally friendly wood instead of metallic materials. Japan is also planning to officially launch into space. Artificial satellites that re-enter Earths atmosphere burn up to form tiny alumina (aluminum oxide) particles. These particles can affect the Earths atmosphere. To solve this problem, researchers experimented with wooden artificial satellites.

Information is sent from Earth to satellites via radio frequency. Which are received by the antenna and amplified by the satellites and sent back to the earth. With the help of rockets the satellites are placed in a specific place. From there they revolve around the Earth or any other planet, star. A satellite is an artificial object placed in orbit around the Earth or the Moon or any other planet to collect information or as a means of communication. Thousands of man-made satellites orbit the Earth. Some of them are collecting images of different planets, some are helping meteorologists to forecast weather and predict various types of natural disasters. Some satellites orbit to take pictures of other planets, the Sun, black holes or distant galaxies.

 There are also some satellites which are mainly used as a means of communication. Its role is immense behind the invention and popularity of TV signal, phone call connection, wireless internet system around the world. GPS, which is completely dependent on satellite technology,. It is  now a daily companion of people. It also has extensive use in the military. Developed countries are using satellites for various military purposes including strengthening of their military forces, enemy states, terrorist forces, extremists, nuclear weapons manufacturing facilities. There are separate spacecraft to put satellites into orbit.

It is called "launch vehicle" or rocket. which orbit the Earth or travel elsewhere in space for the purpose of collecting the desired information. Satellites are launched from Earth to specific targets through rockets using advanced technology. One of the biggest concerns in putting a satellite into orbit is keeping the gravitational acceleration and momentum of the spacecraft in balance. Because gravitational acceleration pulls our launcher towards Earth. Satellite has made our life much easier. If all the satellites were suddenly destroyed, the people of the whole world would be cut off from a hugely important part of communication.

The global economy will collapse. Banking system will be broken, online banking, ATM banking will stop. Import and export will be stopped. Without satellites communication ships, air traffic will become difficult. Internet, television, radio network will be down and go without GPS. In a word without satellites, human civilization will be completely immobilized. Satellite Internet is served directly from the satellite without any cables. In remote areas or villages where it is difficult to establish fiber network, Internet service can be obtained through satellite.

Satellite Internet is the process of connecting with the help of communication satellites or geostationary satellites. This connection is wireless and can provide high speed services. Most satellites are unmanned. However, there are several satellites that carry passengers. Their main task is to carry astronauts from Earth to and from the International Space Station (ISS). Satellite Internet is serviced directly from the satellite without any cables. In remote areas or villages where it is difficult to establish fiber network there Internet service can be obtained through satellite. Satellite Internet is the process of connecting with the help of communication satellites or geostationary satellites.

 This connection is wireless and can provide high speed services. This technology is playing a key role in researching the solar system and the universe including all elements of the earth. Moreover, the main source of scientists research about the conditions of the atmosphere including the weight layer is the data obtained from satellites.

Because of the birds eye view of the satellite (a birds eye view of the Earths surface) we see a large part of the Earth from above. Because of this, satellites can collect data faster and more accurately than any ground-based instrument. Even satellites play a more effective role than telescopes in observing an object. The main reason for placing the satellite so high is so that clouds dust and sand cannot create any kind of obstruction. Some modern satellites measure the quality of the soil and make digital measurements of it. As a result, farmers get a detailed idea about soil quality, crop yield. Satellites can also detect cones on the Earths surface. There are many remote places in the world. We find those places through satellite.

Many people die every year due to road accidents. Through satellite we can find out the defects of different roads. Urbanization is very useful in this work. Currently various products are imported and exported from one end of the world to the other end. Satellite helps us to track their location at home. Satellites help us in determining wind speed and air pollution. Satellites are most useful in helping victims after natural disasters. However, satellites also have several negative aspects. Among which surveillance, endangering orbit, pollution of space environment are among them. In addition these artificial satellites can be very destructive weapons in the space arms race that started from the cold war.

The writer is a student, Jagannath University



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