短語詞組短語NPR Noise Power Ratio 噪音功率比sideband noise power ratio 邊帶噪聲功率比noise power ratio npr 噪聲功率比noise -power-ratio 噪聲功率比Noise -signal power ratio 噪信功率比carrier to noise power ratio 載波噪聲功率比in -band noise power ratio 帶內(nèi)噪聲功率比signal -to-noise power ratio [通信]信號(hào)與噪聲功率比;信噪比single -sideband noise power ratio 單邊帶噪聲功率比 返回 noise power ratio