常見例句雙語例句AimTo use the common sample frequency in low speed to the sample of band-pass signals of multiple different frequency point in full frequency rage.目的用公共的低速採樣頻率對全頻段內(nèi)許多不同頻點(diǎn)的帶通信號進(jìn)行採樣。Aiming at data acquisition of radar echo signal with low SNR, IF band-pass sampling concept is proposed. High-speed acquisition card PCI_9820 is used to sample in real-time and store data.針對低信噪比的雷達(dá)廻波信號數(shù)據(jù)採集，文中給出了中頻帶通採樣方案，竝選用PC I_9820高速採集卡實(shí)時(shí)採集和存儲(chǔ)數(shù)據(jù)。 返回 band-pass sample