News on China's scientific and technological development.
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supercat
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Automation in China - facial recognition and Xiaomi's robotic charger:
Stephen Chen and SCMP.....
they give reference as well ..
The outline of the target, the rotor, the tail and the number of engines can be clearly identified from the infrared spectrum image,” said the team led by Liu Zhihui, an electrooptics engineer with defence contractor Sichuan Jiuzhou Electric Group Company.
Chinese scientists developed a small but powerful heat-seeking radar with a detection range of nearly 300km that can be mounted on a car, fighter jet or satellite. Credit: Sichuan Jiuzhou Electric Group Company Limited
He called the thing a "radar" and no link to the study
In a recent published paper, USTC's Prof. Pan Jianwei revealed that there was a compact QKD (quantum key distribution) terminal carried by the now ceased Tiangong-2 spaceship.
Two teams from USTC carried out quantum key distribution and space-ground quantum communication experiements using this device. In the 3 years of its life in space, Tiangong-2 also worked together with the Mozi satellite in quantum communication experiments.
Tiangong-2 ran on different orbits than the Mozi satellite does. Having space-based QKD terminals on orbits of different altitudes and inclinations is one of most effective approaches to create global quantum communication networks.
Two teams from USTC carried out quantum key distribution and space-ground quantum communication experiements using this device. In the 3 years of its life in space, Tiangong-2 also worked together with the Mozi satellite in quantum communication experiments.
Tiangong-2 ran on different orbits than the Mozi satellite does. Having space-based QKD terminals on orbits of different altitudes and inclinations is one of most effective approaches to create global quantum communication networks.
The Beijing-3B satellite launched by a CZ-2D on Aug 24 is an "optical remote sensing" satellite. The "Tianshu (天舒)" camera carried by the satellite has the resolution of 0.5m. It is the best commercially available space camera of China so far. It can, for example, easily distinguish each tree canopy in woods, or identify the front and rear windscreens of cars on the ground.
The satellite can pan and tilt the camera lens along both axis to have greater coverage along the satellite orbit. It can also focus on specific spots in the field of view and record up to 90 seconds of video.
The Beijing-3B satellite flies 600+ km above the sea level, more than 100km higher than the previously launched Beijing-3A satellite.
This satellite will join the constellation with the 3A and Beijing-2 series satellites.
The satellite can pan and tilt the camera lens along both axis to have greater coverage along the satellite orbit. It can also focus on specific spots in the field of view and record up to 90 seconds of video.
The Beijing-3B satellite flies 600+ km above the sea level, more than 100km higher than the previously launched Beijing-3A satellite.
This satellite will join the constellation with the 3A and Beijing-2 series satellites.