基于动态频谱共享的星地协同认知无线通信技术研究

项目名称： 基于动态频谱共享的星地协同认知无线通信技术研究

项目编号： No.91538109

项目类型： 重大研究计划

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 张建军

作者单位： 中国空间技术研究院

项目金额： 67万元

中文摘要： 卫星通信在现代通信行业中地位越来越重要，它为用户提供的灵活性、实时性、全球通信覆盖能力是其他通信媒介难以实现的。随着移动通信卫星业务的不断涌现，频谱供需矛盾日益突出，电磁环境更加复杂多变，卫星频谱资源的监测和管理早已上升到国家安全和战略高度，提高频谱资源利用率已成为解决现存的频谱资源短缺问题的重要途径。本课题研究和构建星地协同动态频谱共享技术模型与方法，提高“星地一体”协同通信频谱的利用能力。突破动态频谱环境下星地协同频谱高效检测识别技术、基于本地动态模板的信号稀疏表示及数据挖掘技术、面向多参数优化控制的星地协同频谱动态重配置方法，以及星地协同动态频谱共享系统架构的优化设计，通过地面仿真实验及选取针对性内容进行星上在轨测试，验证理论及方法的正确性和合理性。为我国及时高效的建立“星地一体”通信组网找到一种有效的解决途径，为我国空间信息网络的健康、稳步、可持续发展提供技术支持和储备。

中文关键词： 空间信息网络；移动通信卫星系统；频谱共享；协同；认知技术

英文摘要： Satellite communication is becoming more and more important in modern communication industry. It can provide the users with the flexibility, real-time, and global communication coverage, which are difficult to be achieved by other communication mediums. With the constantly emerging of mobile communication satellite services and business, the contradiction between spectrum supply and demand has become increasingly prominent, and the electromagnetic environment has become more complex and changeful. The importance of monitoring and management of satellite spectrum resources has already risen to the national security and strategic level. Thus, improving the spectrum resource utilization has become an important way to overcome the existing spectrum resources shortages. The problem is to investigate and to set up the satellite-to-ground collaborative dynamic spectrum sharing technique models and methods to improve the utilization ability of the satellite to ground collaborative communication spectrum. This technique can break through the efficient detection and recognition technology of the satellite-to-ground collaborative spectrum in the dynamic spectrum environment and provide the signal sparse representation and data mining technology based on local dynamic template. Multi-parameters optimization control is utilized to give satellite-to-ground collaborative spectrum dynamic reconfiguration method, and the satellite-to-ground dynamic spectrum sharing system architecture is designed in an optimal sense. Then, simulation experiments on the ground and of specific content testing of stars in orbit are implemented to verify the correctness and rationality of the theory and methods. This project provides an effective solution to the timely and efficient establishment of satellite to ground communication network, and provides technical support for the healthy, steady, sustainable development of our national spatial information network.

英文关键词： Spatial Information Network;Mobile Communication Satellite System;Spectrum Sharing;Cooperation;Cognitive Technology