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7.4.2 多 进 制 频 移 键 控 (MFSK)• 用 于 频 率 选 择 性 衰 落 严 重 的 场 合 ,MFSK,鲁棒 性 好• 频 带 利 用 率 低• 频 带 换 取 功 率2011-9-11 99
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