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watsup
Guest
大家好,我怎么样计算的数字平均功率(I和Q)??在我的项目..我喂养中频信号(GMSK的调制,功率- 20dB至- 60dB的)到ADC(模拟数字转换器)和ADC的数字下变频芯片,我需要计算的数字输出采样功率( I和Q)唐氏156转换芯片的样品,平均功耗将是:((我^ 2 + Q的^ 2))/ 156。如果- 20 dB的功率是美联储为输入..用该公式计算值不匹配到- 20dB .. ??好心帮助watsup
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