数字式检波器
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digital product detector
数字产品检测器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It was suggested that direct intermediate frequency sampling was approached by two branch sampling, otherwise digital product detector was adopted to digital interpolation.
提出用二分项采样法实现直接中频采样，而数字式检波器采用数字内插法。
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