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Nanometer precision ranging demonstrated across 113 kilometers sets new benchmark for space measurement
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Nanometer precision ranging demonstrated across 113 kilometers sets new benchmark for space measurement
Tokyo, Japan (SPX) Nov 08, 2025 Researchers from the University of Science and Technology of China, led by professors Jian-Wei Pan, Hai-Feng Jiang, and Qiang Zhang, have achieved nanometer-level absolute distance measurement over a 113-kilometer path using a bistatic dual-comb ranging (BDCR) approach. This technique attained a precision of 82 nanometers within 21 seconds, establishing a new standard for high-precision long-dis
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