March 31, 2020
space junk

Chinese researchers have developed a new laser system to detect space junk accurately

Scientists in China have improved the accuracy of technology to detect the spread of junk in Earth’s orbit in space. Scientists say that a new method can easily find a safe passage for a spacecraft. Junk or debris spread across space includes old satellites that are no longer in use, rocket remains and similar devices that collide and break apart. Although scientists have developed a system to identify junks orbiting Earth in space, it was impossible to identify a small, fast-moving piece of debris.

According to a study published in the journal ‘Laser Applications’ scientists have developed an algorithm for the accurate identification of such debris. As a result, the success rate of space debris detection from the laser range telescope has been greatly improved.

The fragment can be traced up to 1500 kilometers away from the Chinese Academy of Survey and Mapping, where fragments up to one square meter up to a distance of 1500 kilometers can be detected from the new technology. The distance of any object in laser ranging technology is measured by laser reflection from that object.

New algorithm improves the accuracy of the laser ranging telescope Scientists said that the laser reflected from the surface of the space debris is very weak. This weakens the calculation of the debris of space. Scientists have made some improvements in the last few experiments, but previous technology has only been able to obtain accurate debris information at a kilometer level. For the first time in the new study, it was found that the accuracy of the laser range telescope was significantly improved by the new algorithm. The scientists also demonstrated the accuracy of this new technology at the Fangshen Laser Range Telescope Station in Beijing.

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