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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。
When the traditional method is used to schedule multi-target resources of relay satellites, if the signal-to-noise ratio is low or the interference is large, the channel equalization effect is poor and the bit error rate is high. A multi-objective resource scheduling algorithm for relay satellite co-existence with microwave / optical hybrid links is proposed. Firstly, the congestion model of relay satellite multi-objective resource transport channel is constructed, the multi-target resource of relay satellite is fused and filtered, the time-varying impulse characteristics of the filtered resource are extracted, and the equivalent low-pass channel model of relay satellite multi-target resource is constructed. Achieve a balanced multi-target satellite scheduling. The test results show that the proposed algorithm can effectively balance the multi-target resource scheduling in microwave / optical hybrid links, and the beamforming directivity of the impulse response is better. The BER of satellite multi-target scheduling is obviously lower than that of the traditional method.