摘要
传统方法对中继卫星多目标资源进行调度时,若信噪比较低或干扰较大,信道的均衡效果较差,误码率较高。提出一种微波/光混合链路共存的中继卫星多目标资源均衡调度算法。首先构建中继卫星多目标资源传输信道拥塞模型,融合滤波处理中继卫星多目标资源,提取滤波处理后资源的时变脉冲特征,构建中继卫星多目标资源等效低通信道模型,结合模型实现卫星多目标资源均衡调度。测试结果表明,所提算法可有效实现微波/光混合链路中卫星多目标资源均衡调度,冲激响应特征的波束形成指向性较好,卫星多目标资源调度传输的误码率明显低于传统方法。
The channel equalization effect is poor and the bit error rate is high if the SNR is relatively high when scheduling the multi objective resources of relay satellite in traditional methods. Therefore,a new equalization scheduling algorithm of relay satellite based on microwave/light mixed link of coexisting multi-objective resource is proposed in this paper. First build transmission channel congestion model of relay satellite resources,and process the multi-objective resources combined with fusion filtering. Extract the time-varying impulse characteristics of resources after filtering,build an equivalent low communication model of relay satellite multi-objective resources,and realize the equalization scheduling of relay satellite multi-objective resources combined with model. Test results show that the proposed algorithm can effectively realize the equalization scheduling of relay satellite multi objective resources in microwave/optical mixed link,has better beam directivity of impulse response features,and the bit error rate is markedly lower than that of traditional method.
出处
《激光杂志》
北大核心
2017年第8期193-196,共4页
Laser Journal
基金
2015广东省高等学校中青年教师国内访问学者项目支持(2015017)
关键词
微波/光混合链路
中继卫星
多目标资源
调度算法
microwave/light mixed links
relay satellite
multi objective resource
scheduling algorithm
