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日本邮电部综合研究所(原电波研究所)建成宇宙光通信地面中心(东京小金井市)。宇宙光通信可以进行大容量数字传输,并具有小型,轻量,无干扰等优点,这是其它通信手段所无法实现的。这次技术被确认为是未来宇宙通信的主要手段。为此,以实现21世纪完全实用化为目标,美国(NASA)与欧洲(ESA)各国都在积极开展研究开发。另外,
Japan’s Ministry of Posts and Telecommunications Institute for Integrated Research (formerly the Institute of Radio Waves) to build the universe optical communications ground center (Tokyo Koganei). Cosmic optical communications can be large-capacity digital transmission, and has the advantages of small size, light weight, non-interference, which other means of communication can not be achieved. This technology has been identified as the primary means of future communications in the universe. For this reason, all countries in the United States (NASA) and Europe (ESA) are actively carrying out research and development in order to achieve full practicalization in the 21st century. In addition,