文章介绍了一种用直接数字计数测量瞬时频率的原理，并进行了测频误差分析。
This paper proposed the theory of digital counting instantaneous frequency measurement and analyzed the error of frequency measurement.
文章介绍了一种用直接数字计数测量瞬时频率的原理，并进行了测频误差分析。
This paper proposed the theory of digital counting instantaneous frequency measurement and analyzed the error of frequency measurement.
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