... 附照片(with photo) 附样品卡(with sample card) 中文报告(in Chinese) ...
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with sample card
带样卡
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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.
针对低信噪比的雷达回波信号数据采集，文中给出了中频带通采样方案，并选用PC I_9820高速采集卡实时采集和存储数据。
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