项目名称: 基于宽带和跳频信号的星载智能天线波束形成技术研究
项目编号: No.61301256
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 无线电电子学、电信技术
项目作者: 王红霞
作者单位: 沈阳理工大学
项目金额: 26万元
中文摘要: 卫星通信是现代通信的主要方式之一,它在军事应用和航天科技领域具有重要的地位。由于通信卫星的暴露性和广播型的通信方式,其上、下行链路容易受到干扰。为此本项目将从抗干扰的角度研究同步轨道卫星上的智能天线的波束形成技术,重点研究当通信信号为宽带信号和跳频通信信号时所采用的智能天线波束形成方法,并进行仿真验证。本项目的研究成果可有效地抑制不同干扰对卫星通信的影响,这对实现安全的卫星通信具有重要的理论意义和实用价值。
中文关键词: 卫星通信;波束形成;恒定束宽;跳频通信;抗干扰
英文摘要: Satellite communication is one of the main modern communication ways, it holds an important position in the military and aerospace field, but the uplink and downlink of satellite communications are susceptible to be interferenceed because of its communication way's exposure characteristic and broadcasting working mannner. Therefore, from the point of anti-interference, the beamforming questions of spaceborne smart antenna are studied, focusd on the beamforming of smart antenna when the communication signal is a wideband signal and frequency-hopping signals, and the algorithm is verified through simulation.. It can effectively suppress various kinds of interference to satellite communications and it has great significance for achieving the security of satellite communications.
英文关键词: Satellite communications;Beamforming;onstant beamwidth;Frequency hopping communications;Anti-interference