Radar: A Silent Eye In The Sky

Radar: Eye of silence in the sky Today's society depends greatly on radar which is a natural invention. Regardless of whether they recognize it or not, most people are using radar. Thousands of lives rely on the precision and speed of the radar to guide their planes across the intact sky. Others only use it when opening the morning news and checking the weather forecast. Radar seems to be an important part of our daily life, but it has not existed for a long time. It did not show its effect until 1935 near the Second World War.

We have the sky eyes of the National Oceanic and Atmospheric Administration in order to cover all sightseeing spots that radars are easy to overlook, such as high altitude places, mountains, open seas. A geostationary satellite orbits the earth at a very high altitude (approximately 22,500 miles) and moves at the same speed as the Earth rotates. This means that they can always and exactly and consistently monitor the same part of the Earth's hemisphere. In fact, last year, NOAA launched a new geostationary satellite called GOES-R (stationary environment satellite - R). It includes revolutionary techniques like the first lightning plotter that allows meteorologists to study the storm that poses the greatest threat.

Since around 1970, Australia developed the Skywave OTH radar network called Jindalee. It is currently deployed as the Jindalee Operational Radar Network (JORN). JORN includes two operational radars within Australia and a research and development radar covering the north and western marine areas of the continent. These three radars are monitoring air and sea traffic in the area. Russia has history of manufacturing and deploying Skywave OTH radar dating back to 1970. The Soviet Union deployed two such radars called Duga-1 to provide ballistic missile warnings by detecting missiles launched from the US territory during the Boost Phase. Radar obviously did not succeed in the mission, and then these places were abandoned.

For decades, the OTH radar has been used to monitor air traffic and missiles launched in the field of rejected information. The OTH radar operates at or near high frequencies where radio waves are reflected from the ionosphere. This is a phenomenon that makes it possible to receive international radio broadcasts from thousands of miles away. The historical example of the US MASINT series OTH radar is 440 L. In the 1960's, the Air Force developed an OTH Forward Scatter Radar called 440 L to detect missile launches from China or Soviet territory. The series of high frequency radio transmitters and receivers on both sides of China and the Soviet Union continually bounce back between the ionosphere and the surface until it reaches the receiving station. If there is interference with the pattern, it indicates that the missile penetrates the ionosphere.