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.目的用公共的低速采樣頻率對全頻段內許多不同頻點的帶通信號進行采樣。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回波信號數(shù)據(jù)采集,文中給出了中頻帶通采樣方案,并選用PC I_9820高速采集卡實時采集和存儲數(shù)據(jù)。 返回 band-pass sample