The coherence bandwidth of shortwave channel is calculated by using the density profile and wave propagation features in ionosphere.
从该电子密度模式和电离层波传播特性出发确定多径分量，计算短波信道相干带宽。
At the same time, the implementation of coherence between host and backup will not occupy the bandwidth of the networks, the capacity for HLR to receive and dispatch external message is also raised.
同时，由于主备一致性的实现操作不再占用网络带宽，提高了HLR收发外部消息能力。
At the same time, the implementation of coherence between host and backup will not occupy the bandwidth of the networks, the capacity for HLR to receive and dispatch external message is also raised.
同时，由于主备一致性的实现操作不再占用网络带宽，提高了HLR收发外部消息能力。
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