基于X射线的深空无线通信基础理论与关键技术

项目名称： 基于X射线的深空无线通信基础理论与关键技术

项目编号： No.61471357

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 赵宝升

作者单位： 中国科学院西安光学精密机械研究所

项目金额： 95万元

中文摘要： 在空间无线通信研究方面，微波和激光通信技术已比较成熟，但是面临着传输距离、通信速率有限等瓶颈问题，严重制约未来的深空应用。X射线由于波长短、穿透能力强，当光子能量大于10keV（λ<0.1nm）时，在太空中几乎是无衰减传输。因此可望在较小的体积、重量、功耗下实现远距离太空传输。 然而，在我国对于X射线通信的研究尚属空白。开展此项研究，不仅将对现有的无线通信技术起到很好的补充，而且还能在微波和激光受到屏蔽的通信场合发挥独特作用。因此，研究利用X射线作为信息载体的新概念空间通信方法具有重要的科学意义及应用前景。 首先开展X射线空间通信的理论研究，建立信道模型和编码理论；重点解决宽带宽X射线脉冲信号源的调制发射，基于X射线单光子的探测、解调等关键理论技术问题，建设我国首个X射线通信实验室，实现高速率语音、图像和视频的实验室实时数字通信；培养一批专业人才，为未来空间应用奠定扎实的技术基础。

中文关键词： X射线；无线通信；深空探测

英文摘要： In the field of space wireless communication, laser and microwave technology have become mature, but bottlenecks such as the limited transmission distance, the limited communication rate and so on still exist, which strongly restrict the future applications in deep space. As a result of its short wavelength and great penetrability, X-ray has no attenuation for transmission in space when its photon energy is more than 10keV (λ<0.1nm). Thus a communication technology based on X-ray for long distance signal transmission in deep space can be achieved with smaller size, lower weight and lower power. However, studies on X-ray communication and its applications still remain blank in China. X-ray communication technology will not only be a good complement to laser and microwave communications, but will also have a unique performance on those occasions where laser and microwave could have been shielded. Study on this novel space communication method with a new conception by using X-ray as information carrier will have a great scientific significance and applicable prospect. The theoretical research on X-ray space communication will be started firstly; X-ray communication channel models and coding theory will be established. Key technical problems of a wide bandwidth modulated emission source of X-ray pulse signal, detection and demodulation based on single photon of X-ray will be focused and solved. The first domestic X-ray communication laboratory will be constructed; Real-time communications of audio, photo and video with high transmission rate will be achieved. A batch of professionals will be cultivated, which will lay a firm technology foundation for the future of deep space technologies and applications.

英文关键词： X-ray;Wireless communication;Deep space exploration