Because high-speed data take up wide bandwidth, looking for one which have high efficiency modulation scheme and suitable for frequency hopping communication system is needed.
由于高速数据占用更宽的带宽，所以在调制制式上应该寻找一种适合于跳频通信特点的具有高频谱效率的调制方案。
Because high-speed data take up wide bandwidth, looking for one which have high efficiency modulation scheme and suitable for frequency hopping communication system is needed.
由于高速数据占用更宽的带宽，所以在调制制式上应该寻找一种适合于跳频通信特点的具有高频谱效率的调制方案。
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